Fluke 5520A Operator's Manual
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Fluke 5520A Operator's Manual

Multi-product calibrator
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Table of Contents

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5520A
Multi-Product Calibrator
Operators Manual
PN 688739
August 1998 Rev.6, 1/03
© 1998 -2003 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke 5520A

  • Page 1 ® 5520A Multi-Product Calibrator Operators Manual PN 688739 August 1998 Rev.6, 1/03 © 1998 -2003 Fluke Corporation, All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies.
  • Page 2 Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price.
  • Page 3 To avoid fire hazard, use only the specified replacement fuse: • For 100 V or 120 V operation, use a 5A/250V time delay fuse (Fluke PN 109215). • For 220 V or 240 V operation, use a 2.5A/250V time delay fuse (Fluke PN 851931).
  • Page 4 USE THE PROPER POWER CORD Use only the power cord and connector appropriate for the voltage and plug configuration in your country. Use only a power cord that is in good condition. Refer power cord and connector changes to qualified service personnel. DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES To avoid explosion, do not operate the Calibrator in an atmosphere of explosive gas.

  • Page 5: Table Of Contents

    Remote Operation (IEEE-488) ............1-5 1-6. Where to Go from Here ................ 1-6 1-7. Instruction Manuals ................1-7 1-8. 5520A Operators Manual ..............1-8 1-9. 5520A Operators Guide..............1-8 1-10. 5520A Programmers Guide .............. 1-8 1-11. 5520A Service Manual ..............1-8 1-12.
  • Page 6 5520A Operators Manual 1-36. AC Current (Non-Sine Wave) Specifications ........1-32 1-37. AC Current, Square Wave Characteristics (typical) ......1-34 1-38. AC Current, Triangle Wave Characteristics (typical)...... 1-34 Preparing for Operation ..............2-1 2-1. Introduction................... 2-3 2-2. Unpacking and Inspection ..............2-3 2-3.
  • Page 7 Testing Watts, VA, VAR Performance........4-67 4-64. Testing Harmonics Volts Performance ........4-69 4-65. Testing Harmonics Amps Performance ........4-71 4-66. Calibrating a Fluke 51 Thermometer ..........4-71 4-67. Testing the Thermometer ............. 4-72 4-68. Calibrating the Thermometer ............4-73 Remote Operation ................5-1 5-1.
  • Page 8 Terminators .................. 5-35 5-40. Incoming Character Processing............ 5-35 5-41. Response Message Syntax ............5-36 5-42. Checking 5520A Status ................ 5-37 5-43. Serial Poll Status Byte (STB)............5-37 5-44. Service Request (SRQ) Line ............5-39 5-45. Service Request Enable Register (SRE) ........5-39 5-46.
  • Page 9 7-3. Cleaning the Air Filter ................7-5 7-4. General Cleaning .................. 7-6 7-5. Performance Tests ................7-7 Oscilloscope Calibration Options ............. 8-1 5520A-SC600 Option ................8-3 8-1. Introduction................... 8-5 8-2. SC600 Option Specifications..............8-5 8-3. Volt Specifications ................8-6 8-4.
  • Page 10 8-73. Pulse Generator Verification: Pulse Width ........8-55 8-74. Input Impedance Verification: Resistance ........8-56 8-75. Input Impedance Verification: Capacitance ........8-56 5520A-SC300 Option ................8-57 8-76. Introduction................... 8-59 8-77. Oscilloscope Calibration Option Specifications........8-60 8-78. Volt Function Specifications............8-60 8-79.
  • Page 11 Contents (continued) 8-80. Leveled Sine Wave Function Specifications........8-62 8-81. Time Marker Function Specifications..........8-63 8-82. Wave Generator Specifications ............8-63 8-83. Trigger Signal Specifications for the Time Marker Function ..8-64 8-84. Trigger Signal Specifications for the Edge Function ....... 8-64 8-85.
  • Page 12 5520A Operators Manual Appendices A Glossary....................... A-1 B ASCII and IEEE-488 Bus Codes..............B-1 C RS-232/IEEE-488 Cables and Connectors..........C-1 D Creating a Visual Basic Test Program ............D-1 E Error Messages.................... E-1 Index viii...
  • Page 13 List of Tables Table Title Page 2-1. Standard Equipment ....................2-3 2-2. Line Power Cord Types Available from Fluke ............2-7 3-1. Front Panel Features....................3-4 3-2. Rear Panel Features....................3-10 3-3. Factory Default Settings for the SETUP Menus............ 3-22 4-1.
  • Page 14 5520A Operators Manual 7-14. Verification Tests for Frequency ................7-22 8-1. Volt Specifications....................8-6 8-2. Edge Specifications....................8-7 8-3. Leveled Sine Wave Specifications................. 8-8 8-4. Time Marker Specifications................... 8-9 8-5. Wave Generator Specifications................8-9 8-6. Pulse Generator Specifications ................8-10 8-7.
  • Page 15 1-4. Allowable Duration of Current >11 A ..............1-13 2-1. Accessing the Fuse and Selecting Line Voltage ............ 2-6 2-2. Line Power Cord Types Available from Fluke ............2-7 3-1. Front Panel View ....................3-4 3-2. Rear Panel View..................... 3-10 3-3.
  • Page 16 5520A Operators Manual 5-4. Testing the RS-232 Host Port ................5-13 5-5. Testing the RS-232 UUT Port via RS-232 Host Port..........5-18 5-6. Testing the RS-232 UUT Port via IEEE-488 Port ..........5-20 5-7. IEEE-488 Remote Message Coding............... 5-25 5-8.

  • Page 17: Introduction And Specifications

    Remote Operation (IEEE-488) ............1-5 1-6. Where to Go from Here ................ 1-6 1-7. Instruction Manuals ................1-7 1-8. 5520A Operators Manual ..............1-8 1-9. 5520A Operators Guide..............1-8 1-10. 5520A Programmers Guide .............. 1-8 1-11. 5520A Service Manual ..............1-8 1-12.
  • Page 18 5520A Operators Manual 1-33. AC Voltage, Square Wave Characteristics ........1-31 1-34. AC Voltage, Triangle Wave Characteristics (typical) ..... 1-31 1-35. AC Current (Sine Wave) Extended Bandwidth Specifications..1-31 1-36. AC Current (Non-Sine Wave) Specifications ........1-32 1-37. AC Current, Square Wave Characteristics (typical) ......1-34 1-38.

  • Page 19: Introduction

    Introduction 1-1. Introduction Warning If the 5520A Calibrator is operated in any way not specified by this manual or other documentation provided by Fluke, the protection provided by the Calibrator may be impaired. The 5520A Calibrator is a fully programmable precision source of the following: •...

  • Page 20: Operation Overview

    Test (UUT). 1-2. Operation Overview The 5520A Calibrator may be operated at the front panel in the local mode, or remotely using RS-232 or IEEE-488 ports. For remote operations, several software options are available to integrate 5520A operation into a wide variety of calibration requirements.

  • Page 21: Remote Operation (Ieee-488)

    COM ports at the PC or terminal. A set of four commands control the operation of the SERIAL 2 TO UUT serial port. See Chapter 6 for a discussion of the UUT_* commands. The SERIAL 2 TO UUT port is also used to connect to the Fluke 700 series pressure modules.

  • Page 22: Where To Go From Here

    SERIAL 2 TO UUT ports nn031f.eps Figure 1-2. RS-232 Remote Connections 1-6. Where to Go from Here To locate specific information concerning the installation and operation of the 5520A calibrator, refer to the following list: • Unpacking and setup: Chapter 2, “Preparing for Operation”...

  • Page 23: Instruction Manuals

    5520A Service Manual (PN 688747) One of each manual listed above is shipped with the instrument, except for the 5520A Service Manual, which is optional. The two reference guides are packaged inside this 5520A Operators Manual. Order additional copies of the manuals or reference guides separately using the part number provided.

  • Page 24: 5520A Operators Manual

    This guide is included with this manual. 1-11. 5520A Service Manual The 5520A Service Manual can be ordered through your local Fluke Sales or Service representative (see “Service Information” in Chapter 2). The 5520A Service Manual includes: theory of operation, performance testing, maintenance, and calibration...

  • Page 25: Specifications

    The following tables list the 5520A specifications. All specifications are valid after allowing a warm-up period of 30 minutes, or twice the time the 5520A has been turned off. (For example, if the 5520A has been turned off for 5 minutes, the warm-up period is 10 minutes.) All specifications apply for the temperature and time period indicated.

  • Page 26: General Specifications

    [3] The DC Current ranges 0 to 1.09999 A and 1.1 A to 2.99999 A are sensitive to storage temperatures above 50 °C. If the 5520A is stored above 50 °C for greater than 30 minutes, these ranges must be re-calibrated. Otherwise, the 90 day and 1 year uncertainties of these ranges double.

  • Page 27: Dc Voltage Specifications

    Introduction and Specifications Specifications 1-14. DC Voltage Specifications Absolute Uncertainty, tcal ± 5 °C ± (ppm of output + µV) Stability 24 hours, ± 1 °C Resolution Burden µV ± (ppm output + µV) Range 90 days 1 year 15 + 1 20 + 1 3 + 1 50 Ω...

  • Page 28: Dc Current Specifications

    5520A Operators Manual 1-15. DC Current Specifications Absolute Uncertainty, tcal ± 5 °C Compliance ± (ppm of output + µA) Inductive Voltage Load 90 days 1 year Resolution Range 120 + 0.02 150 + 0.02 0 to 329.999 mA 1 nA 80 + 0.05...
  • Page 29 Introduction and Specifications Specifications DC Current Specifications (cont) Ambient 0 °C 10 °C 20 °C 30 °C 40 °C Current (Amps) nn326f.eps Figure 1-4. Allowable Duration of Current >11 A 1-13...

  • Page 30: Resistance Specifications

    5520A Operators Manual 1-16. Resistance Specifications Absolute Uncertainty, tcal ± 5 °C ± (ppm of output + floor) [2] Floor ppm of output Time & temp since ohms zero cal Range Resolution Allowable Current 12 hrs ± 1 °C 7 days ± 5 °C Ω...

  • Page 31: Ac Voltage (Sine Wave) Specifications

    Introduction and Specifications Specifications 1-17. AC Voltage (Sine Wave) Specifications NORMAL (Normal Output) Max Distortion Absolute Uncertainty, and Noise tcal ± 5 °C Range Frequency Resolution 10 Hz to 5 MHz ± (ppm of output + µV) Burden Bandwidth ± (% output + 90 days 1 year floor)
  • Page 32 5520A Operators Manual AC Voltage (Sine Wave) Specifications (cont) AUX (Auxiliary Output) [dual output mode only] [1] Absolute Uncertainty, Max Distortion tcal ± 5 °C and Noise ± (% of output + µV) 10 Hz to 100 kHz Bandwidth ± (% output +...

  • Page 33: Ac Current (Sine Wave) Specifications

    Introduction and Specifications Specifications 1-18. AC Current (Sine Wave) Specifications LCOMP off Distortion & Noise 10 Hz Absolute Uncertainty, Compliance to 100 kHz Inductive tcal ± 5 °C Range Frequency adder Load ± (% of output + µA) ± (µA/V) ±...
  • Page 34 5520A Operators Manual AC Current (Sine Wave) Specifications (cont) LCOMP on Absolute Uncertainty, tcal ± 5 Max Distortion & Noise, 10 Hz Inductiv °C Range Frequency to 100 kHz BW e Load ± (% of output + µA) ± (% output + µH...

  • Page 35: Capacitance Specifications

    Introduction and Specifications Specifications 1-19. Capacitance Specifications Absolute Uncertainty, tcal ± 5 °C Allowed Frequency or ± (% of output + floor) Charge-Discharge Rate Typical Min and Max Typical Max Max for <1% Res- to Meet <0.5% Error Range 90 days 1 year olution Specification...

  • Page 36: Temperature Calibration (Thermocouple) Specifications

    5520A Operators Manual 1-20. Temperature Calibration (Thermocouple) Specifications Absolute Uncertainty Absolute Uncertainty Source/Measure Source/Measure tcal ±5 °C tcal ±5 °C Range Range °C ± °C [3] °C ± °C [3] Type Type 90 days 1 year 90 days 1 year 600 to 800 0.42...

  • Page 37: Temperature Calibration (Rtd) Specifications

    400 to 600 0.12 0.14 600 to 630 0.14 0.16 Resolution is 0.003 °C Applies for COMP OFF (to the 5520A Calibrator front panel NORMAL terminals) and 2- wire and 4-wire compensation. Based on MINCO Application Aid No. 18 1-21...

  • Page 38: Dc Power Specification Summary

    5520A Operators Manual 1-22. DC Power Specification Summary Current Range 0.33 mA to 0.33 A to 3 A to 329.99 mA 2.9999 A 20.5 A Absolute Uncertainty, tcal ± 5 °C, ± (% of watts output) [1] Voltage Range 90 days 33 mV to 1020 V 0.021...

  • Page 39: Power And Dual Output Limit Specifications

    Introduction and Specifications Specifications 1-24. Power and Dual Output Limit Specifications Power Voltages Voltages Factor (NORMAL) (AUX) (PF) Frequency Currents 0 to ±1020 V 0 to ± 20.5 A 0 to ± 7 V  10 Hz to 45 Hz 33 mV to 32.9999 V 3.3 mA to 2.99999 A 10 mV to 5 V...

  • Page 40: Phase Specifications

    5520A Operators Manual 1-25. Phase Specifications 1-Year Absolute Uncertainty, tcal ± 5 °C, (∆ Φ °) 10 Hz to 65 Hz to 500 Hz to 1 kHz to 5 kHz to 10 kHz to 65 Hz 500 Hz 1 kHz...

  • Page 41: Calculating Power Uncertainty

    Introduction and Specifications Specifications 1-26. Calculating Power Uncertainty Overall uncertainty for power output in watts (or VARs) is based on the root sum square (rss) of the individual uncertainties in percent for the selected voltage, current, and power factor parameters: Watts uncertainty power voltage...

  • Page 42: Additional Specifications

    1.200 MHz to 2.000 MHz 1 kHz [1] With REF CLK set to ext, the frequency uncertainty of the 5520A is the uncertainty of the external 10 MHz clock ±5 µHz. The amplitude of the 10 MHz external reference clock signal should be between 1 V and 5 V p-p.

  • Page 43: Harmonics (2Nd To 50Th) Specifications

    Introduction and Specifications Additional Specifications 1-29. Harmonics (2nd to 50th) Specifications Fundamental Voltages Voltages Amplitude Frequency [1] NORMAL Terminals AUX Terminals Uncertainty Currents Same % of 10 Hz to 45 Hz 33 mV to 32.9999 V 3.3 mA to 2.99999 A 10 mV to 5 V output as 45 Hz to 65 Hz...

  • Page 44: Ac Voltage (Sine Wave) Extended Bandwidth Specifications

    5520A Operators Manual 1-30. AC Voltage (Sine Wave) Extended Bandwidth Specifications 1-Year Absolute Uncertainty Max Voltage tcal ± 5 °C Range Frequency Resolution Normal Channel (Single Output Mode) ± (5.0 % of output + 1.0 mV to 33 mV 0.01 Hz to 9.99 Hz Two digits, e.g., 25 mV...

  • Page 45: Ac Voltage (Non-Sine Wave) Specifications

    Introduction and Specifications Additional Specifications 1-31. AC Voltage (Non-Sine Wave) Specifications Triangle Wave & 1-Year Absolute Uncertainty, tcal ± 5 °C, Truncated Sine Max Voltage ± (% of output + % of range) [2] Frequency Range, p-p [1] Resolution Normal Channel (Single Output Mode) 5.0 + 0.5 0.01 Hz to 10 Hz Two digits on...

  • Page 46: Ac Voltage, Dc Offset Specifications

    5520A Operators Manual 1-32. AC Voltage, DC Offset Specifications 1-Year Absolute Offset Uncertainty, tcal ± 5 °C [3] Range [1] Peak ± (% dc output + floor) (Normal Channel) Offset Range [2] Signal Sine Waves (rms) 0.1 + 33 µV 3.3 mV to 32.999 mV...

  • Page 47: Ac Voltage, Square Wave Characteristics

    Introduction and Specifications Additional Specifications 1-33. AC Voltage, Square Wave Characteristics Risetime Settling Time Overshoot @ 1 kHz @ 1 kHz @ 1 kHz Typical Typical Typical Duty Cycle Range Duty Cycle Uncertainty <1 µs <10 µs to 1% <2% 1% to 99%, <3.3 V p-p, ±...

  • Page 48: Ac Current (Non-Sine Wave) Specifications

    5520A Operators Manual 1-36. AC Current (Non-Sine Wave) Specifications Triangle Wave & Truncated Sine Wave 1-Year Absolute Uncertainty tcal ± 5 °C Range Current ± (% of output + % of range) Frequency Resolution 5.0 + 0.5 0.047 mA 0.01 Hz o 10 Hz Two digits 0.25 + 0.5...
  • Page 49 Introduction and Specifications Additional Specifications AC Current (Non-Sine Wave) Specifications (cont) 1-Year Absolute Square Wave Uncertainty, tcal ± 5 °C, Range Current ± (% of output + % of range) Frequency Resolution 5.0 + 0.5 0.01 Hz to 10 Hz Two digits 0.25 + 0.5 0.047 mA to...

  • Page 50: Ac Current, Square Wave Characteristics (Typical)

    5520A Operators Manual 1-37. AC Current, Square Wave Characteristics (typical) Range LCOMP Risetime Settling Time Overshoot I < 6 A @ 400 Hz 25 µs 40 µs to 1% of final value < 10% for < 1 V Compliance 100 µs 200 µs to 1% of final value...

  • Page 51: Preparing For Operation

    Chapter 2 Preparing for Operation Contents Page 2-1. Introduction................... 2-3 2-2. Unpacking and Inspection ..............2-3 2-3. Replacing the Fuse................2-4 2-4. Selecting Line Voltage ................. 2-4 2-5. Connecting to Line Power ..............2-5 2-6. Selecting Line Frequency ..............2-5 2-7.
  • Page 52 5520A Operators Manual...

  • Page 53: Introduction

    2-1. Introduction This chapter provides instructions for unpacking and installing the 5520A, selecting the line voltage, replacing the fuse, and connecting to line power. Instructions for cable connections other than line power can be found in the following chapters: •...

  • Page 54: Replacing The Fuse

    5520A Operators Manual 2-3. Replacing the Fuse CAUTION To prevent possible damage to the instrument, verify the correct fuse is installed for the selected line voltage setting 100 V and 120 V, use 5.0 A/250 V time delay (slow blow); 200 V and 240 V, use 2.5 A/250 V time delay (slow blow).

  • Page 55: Connecting To Line Power

    For calibrators with Main software version 1.9 or greater, and if you are using 50 Hz line voltage, you should re-configure the 5520A for optimal performance at 50 Hz. To do so, from the front panel, go into SETUP, INSTMT SETUP, OTHER SETUP, and then turn MAINS50H to “on”.
  • Page 56 5520A Operators Manual LINE VOLTAGE INDICATOR CHANGING LINE FUSE CHANGING LINE VOLTAGE nn007f.eps Figure 2-1. Accessing the Fuse and Selecting Line Voltage...

  • Page 57: Service Information

    Figure 2-2. Line Power Cord Types Available from Fluke 2-7. Service Information Each Model 5520A Calibrator is warranted to the original purchaser for a period of 1 year beginning on the date received. The warranty is located at the front of this manual.

  • Page 58: Placement And Rack Mounting

    (61-cm) deep equipment rack. For bench-top use, the calibrator is equipped with non- slipping, non-marring feet. To mount the calibrator in an equipment rack, use the 5520A Rack Mount Kit, Model Y5537. Instructions for rack mounting the calibrator are packed with the rack mount kit.

  • Page 59: Features

    Chapter 3 Features Contents Page 3-1. Introduction................... 3-3 3-2. Front Panel Features ................3-3 3-3. Rear Panel Features ................3-3 3-4. Softkey Menu Trees................3-3...
  • Page 60 5520A Operators Manual...

  • Page 61: Introduction

    Introduction 3-1. Introduction This chapter is a reference for the functions and locations of the 5520A Calibrator’s front and rear panel features. Please read this information before operating the calibrator. Front panel operating instructions for the calibrator are provided in Chapter 4, “Front Panel Operation”;...
  • Page 62 Output values (or potential output values if in standby) are displayed using up to seven digits plus a polarity sign. Output frequencies (or potential output frequencies if the 5520A is in standby) are displayed using four digits. Calibrator status is indicated by displaying the following abbreviations: Displayed when an output is active at the front panel terminals.
  • Page 63 An overload condition is detected. The OPR (Operate) key places the 5520A in operate mode. Operate mode is indicated by “OPR” in the lower left corner of the Output Display and the lit indicator on the OPR key. The EARTH (Earth Ground) key opens and closes an internal connection between the NORMAL LO terminal and earth ground.
  • Page 64 The SETUP (Setup Menu) key puts the 5520A in the setup mode, displaying the setup menu in the Control Display. Setup options can be selected using the softkeys under the Control Display.
  • Page 65 This key sets the 5520A to standby if this change is from below 33 V. In the SCOPE mode, the MULT key changes the output to the next higher range.
  • Page 66 5520A, which appears on the Output Display. The new value can come from the numeric keypad. If you press ENTER without identifying the units for the entry, in most cases the 5520A keeps the units that were last used. This allows you, for example, to enter 1 mV, and then later enter 10 to obtain 10 V.
  • Page 67 Features Softkey Menu Trees The TC (Thermocouple) minijack is used for thermocouple simulation during thermometer calibration, and thermocouple measurements. You must use the correct thermocouple wire and plug when using this connector. For example, if simulating a type K thermocouple, use type K thermocouple wire and type K plug for making connections.
  • Page 68 Chapter 5, “Remote Operation” describes how to use the RS-232 serial interface for remote control. The 10 MHz IN BNC connector is for applying an optional external clock signal to the 5520A. This replaces the normal internal 10 MHz clock signal in the 5520A. Frequency accuracy of the 5520A is governed by the frequency accuracy of the clock signal internal or external.
  • Page 69 The CHASSIS GROUND terminal is internally grounded to the chassis. If the 5520A is the location of the ground reference point in a system, this binding post can be used for connecting other instruments to earth ground.
  • Page 70 5520A Operators Manual SETUP Front Panel Key AK AL Next Section nn013f.eps Figure 3-3. SETUP Softkey Menu Tree 3-12...
  • Page 71 Features Softkey Menu Trees to X to G to B SHOW SPECS is an online summary of the programmed output specifications. to AG to F to C If self test does not pass, error codes are displayed. (See chapter 7, "Maintenance") to E to D SERIAL # displays the serial number of the instrument.
  • Page 72 5520A Operators Manual Actual revision numbers replace 1.0 for each of the above. Format NV (non-volatile) Memory should be used with caution. Changes are non-reversible. The softkeys function only when the rear-panel CALIBRATION switch is set to ENABLE, except for the softkey SETUP, which is not dependent on the CALIBRATION switch position.
  • Page 73 Features Softkey Menu Trees STALL refers to the method of controlling data flow: software control (xon/off), hardware control (rts/cts) or none. to L STALL refers to the method of controlling data flow: software control (xon/off), hardware control (rts/cts) or none. to M REMOTE I/F (Interface) has selections term (terminal) (factory default) and comp (computer).
  • Page 74 5520A Operators Manual to N to K EOF (End of File) indicates the action taken at the end of a file by entering one or two ASCII characters. EOF (End of File) ASCII characters are entered with a range of 000 to 255 (first character) and 000 to 255 (second character).
  • Page 75 Features Softkey Menu Trees levels 0,1,2,3,4,5,6,7 levels 0,1,2,3,4,5,6,7 There are eight levels of contrast, 0 to 7, for the Output Display and Control Display. Each may have its own level of contrast. The factory defaults are 7 and 7. levels 0,1,2,3,4,5,6,7 levels 0,1,2,3,4,5,6,7 There are eight levels of brightness, 0 to 7, for the Output Display and Control Display.
  • Page 76 5520A Operators Manual to S3 to V to U The values set here become the new limits and can be changed only with new entries or returned to factory defaults using Format NV Memory SETUP (see menu F). nn019f.eps Figure 3-4. SETUP Softkey Menu Displays (cont)
  • Page 77 Y to AC to AA Select the desired CAL (Calibration) feature: CAL to calibrate the 5520A (see the Service Manual); CAL DATES to review when the 5500A Calibrator was last calibrated; CAL REPORTS to printout the calibration data. to Z to X nn020f.eps...
  • Page 78 ZERO zeros the 5520A Calibrator. OHMS ZERO zeros the ohms portion of the 5520A Calibrator; ERR ACT (Error Action) set backup, abort, or cont (continue). to AF GO ON and ABORT softkeys are used in the 5520A Calibrator calibration procedure. See the Service Manual for more information. (Only if scope...
  • Page 79 Features Softkey Menu Trees to AG to AH to AJ to AK to AL nn022f.eps Figure 3-4. SETUP Softkey Menu Displays (cont) 3-21...
  • Page 80 5520A Operators Manual Table 3-3. Factory Defaults for SETUP Menus Power-Up Defaults SETUP Menu in Parameter Setting Figure 3-4. Cleared. User report string (*PUD string) > 0.1% Error units SC-600 option overload 10 s test safety timeout Temperature standard its-90...
  • Page 81 Chapter 4 Front Panel Operation Contents Page 4-1. Introduction................... 4-3 4-2. Turning on the Calibrator ..............4-3 4-3. Warming up the Calibrator ..............4-4 4-4. Using the Softkeys ................4-4 4-5. Using the Setup Menu ................4-4 4-6. Using the Instrument Setup Menu............ 4-5 4-7.
  • Page 82 Testing Watts, VA, VAR Performance........4-67 4-64. Testing Harmonics Volts Performance ........4-69 4-65. Testing Harmonics Amps Performance ........4-71 4-66. Calibrating a Fluke 51 Thermometer ..........4-71 4-67. Testing the Thermometer ............. 4-72 4-68. Calibrating the Thermometer ............4-73...

  • Page 83: Introduction

    Refer to “Selecting Line Voltage” in Chapter 2 to check the line voltage setting. When the 5520A Calibrator is powered, the initial display is “Starting Up...” (see below) and it completes a self-test routine. If a self-test fails, the Control Display identifies an error code.

  • Page 84: Warming Up The Calibrator

    Operators Manual 4-3. Warming up the Calibrator When you turn on the 5520A, allow a warm-up period of at least 30 minutes for the internal components to stabilize. This ensures that the calibrator meets or exceeds the specifications listed in Chapter 1.

  • Page 85: Using The Setup Menu

    Front Panel Operation Using the Setup Menu • UTILITY FUNCTNS (Utility Functions) Allows you to initiate self-tests, format the nonvolatile memory (restore factory default settings), and review the instrument configuration software versions and user report string. These features are explained under “Utilities Function Menu”...

  • Page 86: Using The Format Eeprom Menu

    At any time during front panel operation (not remote operation), you can return the 5520A Calibrator to the power-up state by pressing R, except after an error message, which is cleared by pressing a blue softkey. Pressing the R key does the following: •...
  • Page 87 7. Press the ZERO softkey to totally zero the 5520A Calibrator; press the OHMS ZERO softkey to zero only the ohms function. After the zeroing routine is complete (several minutes), press the R key to reset the calibrator.

  • Page 88: Using The Operate And Standby Modes

    5520A Operators Manual 4-11. Using the Operate and Standby Modes When the OPERATE annunciator is lit and OPR is displayed, the output value and function shown on the Output Display is active at the selected terminals. When STBY is displayed in the Output Display, all calibrator outputs are open-circuited except for the front panel thermocouple (TC) terminals.

  • Page 89: Connecting The Calibrator To A Uut

    (thermal emfs), use connectors and conductors made of copper or materials that generate small thermal emfs when joined to copper. Avoid using nickel-plated connectors. Optimum results can be obtained by using Fluke Model 5440A-7002 Low Thermal EMF Test Leads, which are constructed of well-insulated...

  • Page 90: When To Use Earth And Exgrd

    UUT is isolated from earth ground. There must, however, be a safety ground for the 5520A. See “Connecting to Line Power” in Chapter 2. When enabled by the sourced output, a softkey LOs appears, which allows you to tie or open an internal connection between the NORMAL LO terminal and AUX LO terminal.

  • Page 91: Four-Wire Versus Two-Wire Connections

    4-17. Four-Wire versus Two-Wire Connections Four-wire and two-wire connections refer to methods of connecting the 5520A to the UUT to cancel out test lead resistance to assure the highest precision of the calibration output.

  • Page 92: Cable Connection Instructions

    For capacitance outputs, null out stray capacitance by connecting the test leads to the UUT, routing them (but not connecting) to the 5520A Calibrator on a non- conductive surface. Null out the reading on the UUT using “rel,” “offset,” or “null,”...
  • Page 93 Front Panel Operation Connecting the Calibrator to a UUT 5520A CALIBRATOR SENSE Ω INPUT 4-WIRE NORMAL SCOPE V, , ,RTD A, -SENSE, AUX V TRIG GUARD 20V PK MAX 20V PK MAX SENSE SOURCE 5520A SOURCE SENSE nn040f.eps Figure 4-2. UUT Connection: Resistance (Four-Wire Compensation)
  • Page 94 5520A Operators Manual 5520A CALIBRATOR TRUE RMS MULTIMETER MIN MAX RANGE HOLD PEAK MIN MAX NORMAL SCOPE V, , ,RTD A, -SENSE, AUX V µ TRIG mA A GUARD 20V PK MAX 20V PK MAX 5520A nn042f.eps Figure 4-4. UUT Connection: Resistance (Compensation Off)
  • Page 95 Front Panel Operation Connecting the Calibrator to a UUT 5520A CALIBRATOR TRUE RMS MULTIMETER MIN MAX RANGE HOLD PEAK MIN MAX NORMAL SCOPE V, , ,RTD A, -SENSE, AUX V µ TRIG mA A GUARD 20V PK MAX 20V PK MAX nn044f.eps...
  • Page 96 5520A Operators Manual 5520A CALIBRATOR TRUE RMS MULTIMETER MIN MAX RANGE HOLD PEAK MIN MAX NORMAL SCOPE V, , ,RTD A, -SENSE, AUX V µ TRIG mA A GUARD 20V PK MAX 20V PK MAX nn046f.eps Figure 4-7. UUT Connection: DC Voltage/AC Voltage...

  • Page 97: Rms Versus P-P Amplitude

    Figure 4-10. UUT Connection: Temperature (Thermocouple) 4-19. RMS Versus p-p Amplitude The 5520A Calibrator ranges for sinusoidal ac functions are specified in rms (root-mean- square; the effective value of the wave form). For example, 1.0 to 32.999 mV, 33 to 329.999 mV, 0.33 to 3.29999 V and so forth.

  • Page 98: Auto Range Versus Locked Range

    5520A Operators Manual While the ac function ranges are directly compatible for sine waves, the rms content of the other waveforms is less apparent. This characteristic leads to subtle calibrator range changes. For example, if you enter a sine wave voltage of 6 V (rms assumed), the selected range is 3.3 to 32.9999 V.

  • Page 99: Setting The Output

    • Resistance 4-22. Setting DC Voltage Output Complete the following procedure to set a dc voltage output at the 5520A front panel NORMAL terminals. If you make an entry error, press Gto clear the display, then reenter the value. Caution Verify the applied voltage to the UUT does not exceed the rating of the UUT insulation and the interconnecting wiring.

  • Page 100: Setting Ac Voltage Output

    Based on this, the formula is: 20 log(V) - 10 log(Impedance * .001) = dBm. Complete the following procedure to set an ac voltage output at the 5520A front panel NORMAL terminals. If you make an entry error, press Gto clear the display, then reenter the value.
  • Page 101 Front Panel Operation Setting the Output 1. Press R to clear any output from the 5520A. 2. Connect the UUT as described earlier in this chapter under “Connecting the Calibrator to a UUT.” 3. Set the UUT to measure ac voltage on the desired range.
  • Page 102 5520A Operators Manual Note At voltage outputs of 100 V and above (nominal), you may notice a slight high-pitched sound. This is normal. 5. Press a multiplier key, if necessary. For example, press c. 6. Output in volts. Press V.
  • Page 103 NORMAL and AUX outputs, selects internal or external 10 MHz reference, and sets the phase difference between an external master 5520A (using 10 MHz IN/OUT) and the NORMAL output. See “Adjusting the Phase” and “Synchronizing the Calibrator using 10 MHz IN/OUT” later in this chapter.
  • Page 104 If you make an entry error, press G to clear the display, then reenter the value. 1. Press R to clear any output from the 5520A. 2. Connect the UUT as described earlier in this chapter under “Connecting the Calibrator to a UUT.”...
  • Page 105 Front Panel Operation Setting the Output 7. The Control Display now shows the amplitude of your entry. For example, 123.456 mA (below). nn079f.eps 8. Press the numeric keys and decimal point key to enter the desired frequency output (maximum five numeric keys). Press a multiplier key, if necessary. For example, press the kilo multiplier key K.
  • Page 106 & REF MENUS (Phase Difference and 10 MHz reference source.) Selects the phase difference between the NORMAL and AUX outputs, selects internal or external 10 MHz reference, and sets the phase difference between an external master 5520A (using 10 MHz IN/OUT) and the NORMAL output. See “Adjusting the Phase” and “Synchronizing the Calibrator using 10 MHz IN/OUT”...
  • Page 107 Front Panel Operation Setting the Output 3. Set the UUT to measure dc power on the desired range. 4. Press the numeric keys and decimal point key to enter the desired voltage output (maximum seven numeric keys). For example, 123.4567. Note At voltage outputs of 100 volts and above (nominal), you may notice a slight high-pitched sound.
  • Page 108 “LO”s ties or opens a connection between front panel NORMAL LO and AUX LO terminals. The front panel NORMAL LO and AUX LO terminals must be tied together either at the UUT or at the 5520A. The default is tied. 4-27. Setting AC Power Output...
  • Page 109 Verify the applied voltage to the UUT does not exceed the rating of the UUT insulation and the interconnecting wiring. 1. Press R to clear any output from the 5520A. 2. Connect the UUT as described earlier in this chapter under “Connecting the Calibrator to a UUT.”...
  • Page 110 5520A Operators Manual 13. The Control Display now shows your entries. For example, 123.456 mV and 234.567 mA at 1.1234 kHz (below). nn086f.eps 14. Press E. The calibrator clears your entry from the Control Display and copies it into the Output Display (below is typical).
  • Page 111 AUX terminals. See “Waveform Types” later in this chapter. • “LO”s (Low Potential Output Terminals) The front panel NORMAL LO and AUX LO terminals must be tied together either at the UUT or at the 5520A. When tied at the UUT, select “open.” The default is tied. •...
  • Page 112 Verify the applied voltage to the UUT does not exceed the rating of the UUT insulation and the interconnecting wiring. 1. Press R to clear any output from the 5520A. 2. Connect the UUT as described earlier in this chapter under “Connecting the Calibrator to a UUT.”...
  • Page 113 “LO”s (Low Potential Output Terminals) The front panel NORMAL LO and AUX LO terminals must be tied together either at the UUT or at the 5520A. When the front panel NORMAL LO and AUX LO terminals are tied at the UUT, select “open”...
  • Page 114 Verify the applied voltage to the UUT does not exceed the rating of the UUT insulation and the interconnecting wiring. 1. Press R to clear any output from the 5520A. 2. Connect the UUT as described earlier in this chapter under “Connecting the Calibrator to a UUT.”...
  • Page 115 Front Panel Operation Setting the Output 12. Press the numeric keys and decimal point key to enter the desired frequency output (maximum five numeric keys). Press a multiplier key, if necessary. For example, press the kilo multiplier key K. Then press the H key. For example, 1.1234 kHz.
  • Page 116 “LO”s (Low Potential Output Terminals) The front panel NORMAL LO and AUX LO terminals must be tied together either at the UUT or at the 5520A. When the front panel NORMAL LO and AUX LO terminals are tied at the UUT, select “open”...
  • Page 117 IN/OUT” later in this chapter. 4-30. Setting Resistance Output Complete the following procedure to set a synthesized resistance output at the 5520A front panel NORMAL terminals. If you make an entry error, press Gto clear the display, then reenter the value.
  • Page 118 Note Since this is a synthesized output, be sure the terminal connections from the 5520A to the UUT are LO to LO and HI to HI. 3. Set the UUT to measure capacitance on the desired range. 4. Press the numeric keys and decimal point key to enter the desired capacitance output (maximum five numeric keys).
  • Page 119 • COMP (Compensation) Applies 2-wire compensation or turns compensation off. Compensation refers to methods of connecting the 5520A to the UUT to cancel out test lead resistance (NOT capacitance). Compensation is available for capacitances of 110 nF and above. This softkey will not function below 110 nF. See “Four-Wire versus Two-Wire Connections”...
  • Page 120 Temperature Standard (its-90), see “Using the Instrument Setup Menu.” Complete the following procedure to set a simulated thermocouple temperature output at the 5520A front panel TC connector. If you make an entry error, press Gto clear the display, then reenter the value.
  • Page 121 Front Panel Operation Setting the Output Note The entered temperature will be cleared to 0 ° C (32 ° F) if you change between tc and rtd, or change the type of thermocouple (except for a type B thermocouple, which clears to 600 ° C). If this should occur, select OUTPUT tc, the desired thermocouple TYPE, and then reenter the temperature.
  • Page 122 REF (Temperature Reference) Displays the value of the temperature reference. When the Reference Source is Internal, the display shows the internal reference, or NONE if the 5520A is in Standby. When the Reference Source is External, the display shows the value you entered for external reference.
  • Page 123 Front Panel Operation Setting the Output 6. The Control Display now shows the amplitude of your temperature output. For example, 123.456 °C (below). nn102f.eps 7. Press E. The calibrator clears your entry from the Control Display and copies it into the Output Display (below is typical). nn103f.eps 8.
  • Page 124 • COMP (Compensation) Applies 4-wire compensation, 2-wire compensation or turns compensation off. Compensation refers to methods of connecting the 5520A to the UUT to cancel out test lead resistance. See “Four-Wire versus Two-wire Connections” earlier in this chapter for more information. For the 3-lead connection (Figure 4-9) select COMP off.
  • Page 125 Complete the following procedure to measure the output of a thermocouple connected to the TC input. If you make an entry error, press G to clear the display, then reenter. 1. Press R to clear any output from the 5520A. 2. Connect the thermocouple to the front panel TC connector.
  • Page 126 Select intrnl when the selected thermocouple has alloy wires and you are using the isothermal block internal to the 5520A Calibrator. Select extrnl when using an external isothermal block, and when the selected thermocouple has copper wires. Press the REF softkey to enter the value of the external temperature reference.

  • Page 127: Sine Wave

    Front Panel Operation Waveform Types 4-36. Sine wave When the wave selection is sine, a sine wave current or voltage signal is present on the calibrator outputs (Figure 4-11). The variables for the sine wave are amplitude, frequency, and dc offset voltage. Peak RMS (70% Peak) Period...

  • Page 128: Truncated Sine Wave

    5520A Operators Manual Period Peak to Peak Decrease Duty Cycle Increase Duty Cycle nn028f.eps Figure 4-13. Square Wave and Duty Cycle 4-39. Truncated Sine Wave When the wave selection is truncs, a truncated sine wave current or voltage signal is present on the calibrator outputs (Figure 4-14).

  • Page 129: Adjusting The Phase

    Front Panel Operation Adjusting the Phase nn108f.eps 3. Press the softkey FUNDMTL to select the 5520A Calibrator front panel terminals for the fundamental output, either NORMAL or AUX. The harmonic appears on the 5520A AUX terminals. 4. Press the softkey HARMNIC to enter the desired harmonic (1 to 50), with a maximum frequency output of 10 kHz.

  • Page 130: Entering A Phase Angle

    5520A Operators Manual The softkey PHASE is available after pressing the WAVE MENUS softkey that appears when outputting dual ac voltages or ac power (shown below for ac power output). nn110f.eps When one output is a harmonic of the other, the phase shift is based on the phase angle or power factor (cosine) of the harmonic signal.

  • Page 131: Entering A Power Factor

    Front Panel Operation Adjusting the Phase 3. Press the numeric keys and decimal point key to enter the desired phase angle (maximum five numeric keys). For example, 123.45. 4. Press I to select leading (+) or lagging (−) phase shift (default is +). 5.

  • Page 132: Entering A Dc Offset

    5520A Operators Manual 4-44. Entering a DC Offset When the calibrator single output is an ac voltage of sine waves, triangle waves, square waves or truncated sine waves, you can apply a +dc offset. When applying an offset to square wave outputs, the duty cycle must be 50.00% (default). The offset selection is...

  • Page 133: Editing And Error Output Settings

    Editing and Error Output Settings 4-45. Editing and Error Output Settings All 5520A Calibrator outputs can be edited using the front panel Edit Field knob and associated L, W, and e keys. In addition, multiply Xand divide D keys edit the output by decades. The difference between the original output (reference) and edited output is displayed as an “error”...

  • Page 134: Displaying The Uut Error

    -10.00030, the error is -30 ppm. 4-48. Using Multiply and Divide The 5520A output value (or reference value if you have edited the output) can be multiplied by a factor of 10 by pressing the X key. Similarly, the output value (or reference value if you have edited the output) can be divided a factor of 10 by pressing the D key.

  • Page 135: Setting Output Limits

    4-50. Setting Voltage and Current Limits To set voltage and current entry limits, proceed as follows: 1. Press R to clear any output from the 5520A. 2. Press S. Press the softkey INSTMT SETUP to open the setup submenus. 3. Press the softkey OUTPUT SETUP to open the output setup submenus.

  • Page 136: Measuring Pressure

    5520A Operators Manual 4-51. Measuring Pressure The 5520A can be used as a pressure calibrator when you use it with the following accessories: To measure pressure: • Fluke 700-Series Pressure Module • Model 700PCK Pressure Calibration Kit (necessary because it provides the interface...
  • Page 137 IS PROPERLY INSTALLED BEFORE ENERGIZING INSTRUMENT -UNPLUG INSTRUMENT P - P GROUND -REMOVE FILTER -FLUSH WITH SOAPY WATER -DRY BEFORE REINSTALLATION WARNING: TO AVOID ELECTRIC SHOCK GROUNDING CONNECTOR IN POWER CORD MUST BE CONNECTED 5520A Rear Panel nn226f.eps Figure 4-15. Measuring Pressure 4-57...

  • Page 138: Synchronizing The Calibrator Using 10 Mhz In/Out

    Operators Manual 4-52. Synchronizing the Calibrator using 10 MHz IN/OUT You can synchronize one or more 5520A Calibrators using the 10 MHz IN and OUT input/output on the rear panel. Example applications of this capability are connecting two or more calibrators in parallel in the current output function to sum their outputs, or using three calibrators to calibrate a three-phase power meter.
  • Page 139 4. On 5520A #2 (the slave), press O for operate mode. 5. On 5520A #1 (the master), press O for operate mode. Now the two 5520As are synchronized. There are two ways to synchronize: pressing O on the master, or pressing the SYNC softkey on the master.

  • Page 140: Three-Phase Power Calibration

    By changing the phase relationships, you can apply other test stimulus. The figure shows the phase relationship of each 5520A. By changing the phase relationships, you can apply other test stimulus.

  • Page 141: Sample Applications

    • Calibrating a Fluke Model 51 Digital Thermometer 4-57. Calibrating an 80 Series Handheld Multimeter This example goes through the steps necessary to calibrate a Fluke 80 Series handheld multimeter. Note These procedures are included here as an example. The 80 Series Service Manual contains the authoritative testing and calibration procedures for 80 Series meters.

  • Page 142: Testing The Meter

    5520A Operators Manual 4-60. Testing the Meter You can use the error mode feature of the calibrator to test the meter. To verify that all ranges of all functions are within specifications, proceed as follows: 1. Turn on the calibrator and allow it to warm up.
  • Page 143 Front Panel Operation Sample Applications 4. Test the ac voltage function: Press R on the calibrator and set the DMM function switch to K. Set the output of the calibrator to 350 mV at 60 Hz. and press O. Verify the errors are within specifications.
  • Page 144 5520A Operators Manual 7. Test the Ohms function as follows: a. Press Ron the calibrator and set the DMM function switch to s. b. Set the calibrator to 190.0 Ω with 2-wire compensation (see Figure 4-3). Press O. Verify the error is within specifications.
  • Page 145 Front Panel Operation Sample Applications c. Set the calibrator to 35.0 mA and press O. d. Use the output adjustment controls to adjust the calibrator output for a reading of +35.00 mA on the DMM. Verify that the error shown on the control display is within specification.

  • Page 146: Calibrating The Meter

    5520A Operators Manual 11. Test the High current function. a. Press R on the calibrator. b. Verify that the calibrator is in standby and connect the DMM as shown in Figure 4-20. TRUE RMS MULTIMETER 5520A CALIBRATOR MIN MAX RANGE...

  • Page 147: Testing A Model 41 Power Harmonics Analyzer

    Power and Harmonics features. The procedure for testing these two functions of the Tester are included here to demonstrate the operation of the dual voltage function of the Fluke 5520A.
  • Page 148 5520A Operators Manual Table 4-3. Watts Performance, Text Screen Calibrator Outputs Performance Limits Normal Phase W/KW VA/KVA VAR/KVAR Phase V ac @ mV ac Model 41 Harmonics Only Screen 60 Hz DEG. @ 60 5.0 V 30.0 mV 8.0 V 30.0 mV...

  • Page 149: Testing Harmonics Volts Performance

    Front Panel Operation Sample Applications 2. Verify that the EARTH indicator is lit; if not, press Z. 3. Set the calibrator output to 5.0 V at 60 Hz on the NORMAL output and 30 mV at 60 Hz on the AUX output. 4.
  • Page 150 Table 4-4. (Note: The Tester will read a positive phase when the 5520A output is a negative phase because, on the 5520A, the polarity of the phase is always relative to the NORMAL channel output.) 10.

  • Page 151: Testing Harmonics Amps Performance

    21.9 4-66. Calibrating a Fluke 51 Thermometer The Fluke 51 Thermometer measures temperature using a type J or K thermocouple. The calibrator simulates both thermocouples, simplifying testing and calibration. The following demonstrates how the calibrator is used to calibrate this thermometer.

  • Page 152: Testing The Thermometer

    The following test should be conducted only after the thermometer has had time to stabilize to an ambient temperature of 23 °C ± 5 °C (73 °F ± 9 °F). 1. Connect the Fluke 51 Thermometer to the calibrator using the appropriate connection cable (Figure 4-22). The connection cable and miniconnector material must match the thermocouple type.

  • Page 153: Calibrating The Thermometer

    K-type thermocouple wire changes to J-type thermocouple wire. 4-68. Calibrating the Thermometer The following procedure refers to the Fluke 51 as the Unit Under Test (UUT). Use copper hookup wire for all connections, except for steps 17 to 20. Caution...
  • Page 154 16. Press Yon the calibrator to remove voltage from the UUT. Disconnect the UUT from the 5520A. Power down the UUT by shorting the ON/OFF switch grid. 17. With an elastomeric switch pad in both hands, use the left one to short out the TP2 grid, and use the right one to first turn on the instrument and then quickly short out the VIEW switch grid.
  • Page 155 Chapter 5 Remote Operation Contents Page 5-1. Introduction................... 5-4 5-2. Setting up the IEEE-488 Port for Remote Control ....... 5-6 5-3. IEEE-488 Port Setup Procedure ............5-8 5-4. Testing the IEEE-488 Port..............5-9 5-5. Setting up the RS-232 Host Port for Remote Control ......5-10 5-6.
  • Page 156 Terminators .................. 5-35 5-40. Incoming Character Processing............ 5-35 5-41. Response Message Syntax ............5-36 5-42. Checking 5520A Status ................ 5-37 5-43. Serial Poll Status Byte (STB)............5-37 5-44. Service Request (SRQ) Line ............5-39 5-45. Service Request Enable Register (SRE) ........5-39 5-46.
  • Page 157 Remote Operation Introduction Warning The 5520A Calibrator (hereafter referred to as “The Calibrator”) can produce voltages up to 1000 V rms and must be programmed with caution to prevent hazardous voltages from being produced without sufficient warning to the operator.

  • Page 158: Introduction

    (PC) equipped with one or more IEEE-488 ports. You can write your own computer programs for system operation using the command set, or you can purchase optional Fluke calibration software MET/CAL or 5520A/CAL, and property management software MET/TRACK. Typical IEEE-488 configurations are shown in Figure 5-1.
  • Page 159 IEEE-488 Port IEEE-488 Port 5520A Calibrator Controller System for a UUT without a remote port. 5520A Calibrator Controller System for a UUT with an IEEE-488 remote port. or to 5520A SERIAL 2 RS-232 COM Port TO UUT Port Port 5520A Calibrator Controller System for a UUT with an RS-232 remote port.

  • Page 160: Setting Up The Ieee-488 Port For Remote Control

    Calibrator operates as a talker/listener. A PC equipped with an IEEE-488 interface, controls the the Calibrator. Compatible software for IEEE-488 operation may be purchased from Fluke, including METCAL and METRACK. Another software package, 5520/CAL, is also available but operates only on the RS-232 serial interface.
  • Page 161 System for a UUT with an RS-232 port (via PC). SERIAL 2 RS-232 COM Port TO UUT Port Port 5520A Calibrator Controller System for a UUT with an RS-232 remote port (via 5520A). nn301f.eps Figure 5-2. Typical RS-232 Remote Control Connections...

  • Page 162: Ieee-488 Port Setup Procedure

    5520A Operators Manual 5-3. IEEE-488 Port Setup Procedure Complete the following procedure to set up the Calibrator for remote operations using the IEEE-488 remote control port. The purpose is to select GPIB as the interface and to select the GPIB address for the interface.

  • Page 163: Testing The Ieee-488 Port

    1. Complete the “IEEE-488 Port Setup Procedure” earlier in this chapter to set up the 5520A for GPIB operation. Note the GPIB Address Port (default is 4). 2. Connect the PC and 5520A IEEE-488 ports using a standard IEEE-488 cable. (See Chapter 9, “Accessories,” for IEEE-488 cables available from Fluke.) 3.

  • Page 164: Setting Up The Rs-232 Host Port For Remote Control

    SERIAL 1 FROM HOST port (Figure 5-2). You can enter individual commands from a terminal, write your own programs using, for example, a Windows-based language such as Visual Basic, or run optional Windows-based Fluke software such as 5520/CAL or MET/CAL.
  • Page 165 Remote Operation Setting up the RS-232 Host Port for Remote Control Select To Step 4 nn121f.eps 5-11...
  • Page 166 5520A Operators Manual 4. Negotiate the softkey selections shown below to select the HOST serial port parameters to match the PC COM parameters. (Individual softkey functions are discussed in Chapter 3, “Features.”) If operating the port with a computer program instead of individual commands from a terminal, select Remote I/F comp.

  • Page 167: Testing The Rs-232 Host Port

    5520A for RS-232 Host port operation. Note the RS-232 Host port parameters that you selected in this procedure. 2. Connect the selected COM port on the PC to the 5520A SERIAL 1 FROM HOST port using a standard null-modem RS-232 cable. (See Appendix C for information on RS-232 cables and connectors.)
  • Page 168 5. Select the Communications command from the Setting menu. Enter the RS-232 parameters that match those selected at the Calibrator for the Host port. If using the 5520A factory defaults, the Communications dialog box for COM1 will appear as shown below. Select COM as required. Click OK.

  • Page 169: Testing Rs-232 Host Port Operation Using Visual Basic

    5520A for RS-232 Host port operation. Note the RS-232 Host port parameters that you selected in this procedure. 2. Connect the selected COM port on the PC to the 5520A SERIAL 1 FROM HOST port using a standard null-modem RS-232 cable. (See Appendix C for information on RS-232 cables and connectors.)

  • Page 170: Setting Up The Rs-232 Uut Port For Remote Control

    5520A Operators Manual 4. Verify the Calibrator is powered and in the reset condition (if in doubt, press R), then click the Command1 button (below). nn311f.bmp 5. Observe the Calibrator Control Display changes to REMOTE CONTROL (below). nn325f.eps 6. Click the Command2 button. Observe the Calibrator Control Display changes back to the reset condition (below).
  • Page 171 Remote Operation Setting up the RS-232 UUT Port for Remote Control 1. Turn the Calibrator power on. You may operate the Calibrator during warmup, but specifications are not guaranteed until warmup is complete. 2. Press S on the Calibrator front panel. 3.

  • Page 172: Testing The Rs-232 Uut Port Via Rs-232 Host Port

    2. Complete “Testing RS-232 Host Port Operation using a Terminal” to set up the 5520A RS-232 Host port to match the parameters of the PC COM port. After Step 9, return to this procedure and continue to Step 3 below.

  • Page 173: Testing Rs-232 Uut Port Operation Using Visual Basic

    1. Complete the “RS-232 UUT Port Setup Procedure” earlier in this chapter to set up the 5520A RS-232 UUT port to match the parameters of the UUT RS-232 port. 2. Complete “Testing RS-232 Host Port Operation using Visual Basic” to prepare the Calibrator RS-232 Host port.

  • Page 174: Testing The Rs-232 Uut Port Via Ieee-488 Port

    Win32 Interactive Control utility. 1. Complete the “IEEE-488 Port Setup Procedure” earlier in this chapter to set up the 5520A for GPIB operation. 2. Complete “Testing the IEEE-488 Port” to prepare the Calibrator IEEE-488 port for testing. Before the final step, return to this procedure and continue to Step 3 below.
  • Page 175 Remote Operation Setting up the RS-232 UUT Port for Remote Control 7. At the prompt, type the following line to activate the IEEE interface card: <ibdev 0 4 0 10 1 0> The second number in this line is the primary address of the calibrator. If the address has been changed from the factory default, change this line accordingly.

  • Page 176: Changing Between Remote And Local Operation

    5-20. Remote with Lockout State When the Calibrator is placed in lockout, either via RS-232 LOCKOUT command, or via the IEEE-488 message LLO, the 5520A front panel controls are totally locked out. In remote with lockout, the Control Display changes to: nn325f.eps...

  • Page 177: Interface Overview

    Remote Operation RS-232 Interface Overview Table 5-1 summarizes the possible Remote/Local state transitions. (For more information on IEEE-488 GPIB messages, see “IEEE-488 Overview.” Table 5-1. Operating State Transitions GPIB Serial From Front Panel Message Command Local Remote MLA (REN True) REMOTE Local With Lockout LOCKOUT...

  • Page 178: Ieee-488 Interface Overview

    5520A Operators Manual 5-22. IEEE-488 Interface Overview The IEEE-488 parallel interface sends commands as data and receives measurements and messages as data. The maximum data exchange rate is 1 Mbyte, with a maximum distance of 20 meters for the sum length of the connecting cables. A single cable should not exceed 4 meters in length.
  • Page 179 Remote Operation IEEE-488 Interface Overview MESSAGE DATA HAND- DESCRIPTION SHAKE MANAGEMENT MESSAGE NAME Addressed Command Group M AC Attention U UC Data Byte M DD B8 B7 B6 B5 B4 B3 B2 B1 Data Accepted U HS Data Valid U HS Device Clear M UC U ST...

  • Page 180: Using Commands

    5520A Operators Manual 5-23. Using Commands Communications between the controller and the Calibrator consists of commands, queries, and interface messages. Although the commands are based on the 488.2 standard, they can be used on either the IEEE-488 or RS-232 interface, except for a few specialized RS-232 commands described in “Commands for RS-232 Only.”...

  • Page 181: Common Commands

    Remote Operation Using Commands 5-26. Common Commands Common commands are defined by the IEEE 488.2 standard and are common to most bus devices. Common commands always begin with an * character. Common commands are available whether you are using the IEEE-488 or RS-232 interface for remote control.
  • Page 182 Trigger a TC measurement and put the reading in the output buffer. Trigger Go To Local Transfer control of the 5520A from one of the remote states to one of the local states. (See Table 5-1) Local Lockout Transfers remote/local control of the 5520A. (See Table 5-1) Interface Clear A control line that sets the interface to a quiescent state.

  • Page 183: Compound Commands

    A control line that any device on the bus can assert to indicate that it requires attention. Refer to “Checking 5520A Status” for details. Status Byte The status byte is what the 5520A sends when it responds to a serial poll (interface message SPE). 5-29. Compound Commands.

  • Page 184: Overlapped Commands

    OUT 1 V, 1 A, 60 HZ ; *WAI You can also use the status commands *OPC and *OPC? to detect completion of overlapped commands. (See “Checking 5520A Status.”) 5-32. Sequential Commands Commands that execute immediately are called sequential commands.
  • Page 185 Remote Operation Using Commands 5-33. Commands that Require the Calibration Switch The following commands do not work unless the rear panel CALIBRATION switch is in the ENABLE position: (when setting date but not time) CLOCK FORMAT ALL FORMAT CAL *PUD Attempting to use any of these commands with the CALIBRATION switch in the NORMAL position logs an error into the error queue.
  • Page 186 5520A Operators Manual 5-35. Commands for IEEE-488 Only The command graphic IEEE-488 indicates commands that are used for the IEEE- 488 interface. This is all the commands, except for those used for RS-232 operations. (See “Commands for RS-232 Only.”) All commands are transferred over the IEEE-488 as data, except for the commands LOCAL, REMOTE, and LOCKOUT, which are implemented per IEEE Standards as messages (see Table 5-7).

  • Page 187: Command Syntax

    Remote Operation Using Commands 5-36. Command Syntax The following syntax rules apply to all the remote commands. Information about syntax of response messages is also given. 5-37. Parameter Syntax Rules Table 5-8 lists the units accepted in command parameters and used in responses. All commands and units may be entered in UPPER or lower case.

  • Page 188: Extra Space Or Tab Characters

    5520A Operators Manual Table 5-8. Units Accepted in Parameters and Used in Responses (cont) Units Meaning Pressure in pound-force pre square inch Pressure in meters of mercury INHG Pressure in inches of mercury INH2O Pressure in inches of water FTH2O...

  • Page 189: Terminators

    Remote Operation Using Commands 5-39. Terminators Table 5-9 summarizes the terminator characters for both the IEEE-488 and RS-232 remote interfaces. Table 5-9. Terminator Characters Language Terminator ASCII Character Control Command Command Function Number Program Terminator Terminator Carriage Return (CR) Chr(13) <Cntl>...

  • Page 190: Response Message Syntax

    ±E20. Example: DC_OFFSET? returns: 1.4293E+00 String Any ASCII characters including quotation mark delimiters. Example: SRQSTR “SRQ from 5520A”; SRQSTR? returns: “SRQ from 5520A” Character This type of response is always a keyword. Response Example: OUT 10V, 100HZ; FUNC? Data (CRD)

  • Page 191: Checking 5520A Status

    Remote Operation Checking 5520A Status 5-42. Checking 5520A Status The programmer has access to status registers, enable registers, and queues in the Calibrator to indicate various conditions in the instrument as shown in Figure 5-8. Some registers and queues are defined by the IEEE-488.2 standard. The rest are specific to the Calibrator.
  • Page 192 5520A Operators Manual Instrument Status 8 7 6 5 4 3 2 1 0 Change Enable Registers & & Write using & ISCE0 (1 to 0 transition) & ISCE1 (0 to 1 transition) & ISCE (1 to 0 AND 0 to 1) &...

  • Page 193: Service Request (Srq) Line

    Requesting service. The RQS bit is set to 1 whenever bits ESB, MAV, EAV, or ISCB change from 0 to 1 and are enabled (1) in the SRE. When RQS is 1, the 5520A asserts the SRQ control line on the IEEE-488 interface. You can do a serial poll to read this bit to see if the 5520A is the source of an SRQ.

  • Page 194: Programming The Stb And Sre

    Enable the EAV bit with the example above. ! THIS PROGRAM GENERATES AN ERROR AND CHECKS IT PRINT @6, “OUT 1300V” ! 1300V IS OUT OF 5520A RANGE A% = SPL(6) ! DO A SERIAL POLL IF ((A% AND 72%)=0%)THEN PRINT “EAV and RQS should have been set”...

  • Page 195: Programming The Esr And Ese

    15 errors that have occurred.) Execution error. An error occurred while the 5520A tried to execute the last command. This could be caused, for example, by a parameter being out of range. (The command ERR? fetches the earliest error in the error queue, which contains error codes for the first 15 errors that have occurred.)

  • Page 196: Instrument Status Register (Isr)

    5520A Operators Manual Convert the contents of variables A and B into binary, and you can read the status of the registers. For example if A is 32, its binary equivalent is: 00000000 00100000. Therefore, bit 5 (CME) in the ESR is set (1) and the rest of the bits are reset (0). This means that the Calibrator tried to execute an incorrectly formed command.
  • Page 197 TMPCAL Set to 1 when the 5520A is using temporary (non-stored) calibration data. OPER Set to 1 when the 5520A is in operate, 0 when it is in standby. nn320f.eps Figure 5-11. Bit Assignments for the ISR, ISCEs and ISCRs...

  • Page 198: Programming The Isr, Iscr, And Isce

    ! NOTE THAT THE ICSR? COMMANDS CLEAR THE ISCR CONTENTS PRINT @6, “ISR?” ! ASK ISR CONTENTS INPUT @6,A% ! RETRIEVE REGISTER CONTENTS FROM 5520A PRINT @6, “ISCR0?” ! ASK FOR AND CLEAR ISCR0 CONTENTS INPUT @6, B% ! RETRIEVE REGISTER CONTENTS FROM 5520A PRINT @6, “ISCE0?”...

  • Page 199: Error Queue

    10 INIT PORT 0 \ REMOTE @6 ! PUT THE 5520A INTO THE REMOTE STATE 20 PRINT @6, “*RST;OUT 10V;OPER” ! RESET THE 5520A, PROGRAM IT TO ! OUTPUT 10 VOLTS DC If you wish to use SRQs, first use the *SRE, *ESE, and ISCE commands to enable the desired event.

  • Page 200: Writing An Srq And Error Handler

    If you want to use SRQs, first use the *SRE, *ESE, and ISCE commands to enable the desired event. Refer to "Checking 5520A Status" for more information. INIT PORT0 ! IFC the bus...

  • Page 201: Verifying A Meter On The Ieee-488 Bus

    Fluke 45 to take a reading. It displays Calibrator output, the Fluke 45 reading, and the meter error in ppm. The program assumes that the Calibrator uses the IEEE-488 interface with bus address is 4 and the Fluke 45 is on the Calibrator SERIAL 2 TO UUT port.

  • Page 202: Taking A Thermocouple Measurement

    10 REM Set Bus Timeout to 20 seconds, Init IEEE Bus 20 TIMEOUT 20 * 1000 30 INIT PORT 0 40 CLEAR @6 100 REM Reset 5520A, TC measurement mode 110 PRINT @6,”*RST; TC_TYPE J; TC_MEAS FAR” 200 PRINT “Hit Carriage Return to take a Reading” 210 INPUTLINE A$ 220 REM Request the measurement value 230 PRINT @6, “VAL?”...

  • Page 203: Using The Rs-232 Uut Port To Control An Instrument

    Remote Operation Remote Program Examples 5-66. Using the RS-232 UUT Port to Control an Instrument The SERIAL 2 TO UUT RS-232 port is used to pass commands on to another instrument. For example, a meter that is being calibrated can have its RS-232 port connected the Calibrator SERIAL 2 TO UUT serial port.
  • Page 204 5520A Operators Manual 5-50...
  • Page 205 Chapter 6 Remote Commands Contents Page 6-1. Introduction................... 6-3 6-2. Command Summary by Function ............6-3 6-3. Common Commands ................ 6-3 6-4. Error Mode Commands ..............6-4 6-5. External Connection Commands............6-4 6-6. Oscilloscope Commands ..............6-5 6-7. Output Commands................6-5 6-8.
  • Page 206 5520A Operators Manual...

  • Page 207: Introduction

    Remote Commands Introduction 6-1. Introduction This chapter documents the IEEE-488/RS-232 remote commands for the 5520A Calibrator (hereafter referred to as “the Calibrator”). Remote commands duplicate activities that can be initiated from the front panel in local operation. Following the summary table is a complete alphabetical listing of all commands complete with protocol details.

  • Page 208: Error Mode Commands

    5520A Operators Manual 6-4. Error Mode Commands EDIT Sets the edit field. PRI is specified for the output value in single output functions and the primary output value in dual output functions. EDIT? Returns the edit field setting. ERR_UNIT Chooses how UUT error is shown.

  • Page 209: Oscilloscope Commands

    Remote Commands Command Summary by Function 6-6. Oscilloscope Commands (See Chapter 8 for usage information.) OL_TRIP? Returns the detected state of scope overload protection. OUT_IMP Sets the output impedance of the SCOPE BNC. OUT_IMP? Returns the output impedance of the SCOPE BNC. RANGE Sets the Calibrator range when in OVERLD, PULSE, or MEASZ scope modes.
  • Page 210 5520A Operators Manual Output Commands (cont) Sets the displacement power factor (phase angle) between the NORMAL and AUX terminals for ac power output only. DPF? Returns the displacement power factor (phase angle) between the NORMAL and AUX terminals. DUTY Sets the duty cycle of square wave outputs.

  • Page 211: Host Port Commands

    Remote Commands Command Summary by Function 6-8. Pressure Measurement Commands DAMPEN Activates or deactivates dampening (averaging) of pressure readings. DAMPEN? Returns whether dampening (averaging) of pressure readings is active. PRES? Queries the attached pressure module for its model and serial number. PRES_MEAS Changes the operating mode to pressure measurement.

  • Page 212: Setup And Utility Commands

    5520A Operators Manual 6-11. Setup and Utility Commands CLOCK Sets the real-time clock. CLOCK? Queries the real-time clock. DBMZ_D Sets the power-up and reset default impedance used for dBm outputs (ac volts). DBMZ_D? Returns the power-up and reset default impedance used for dBm outputs (ac volts).

  • Page 213: Status Commands

    Remote Commands Command Summary by Function 6-12. Status Commands ERR? Returns the first error code with an explanation contained in the Calibrator error queue, then removes that error code from the queue. EXPLAIN? Explains an error code. This command returns a string that explains the error code furnished as the parameter.

  • Page 214: Commands

    5520A Operators Manual 6-14. Commands The following is an alphabetical list of all Calibrator commands and queries, including common commands and device-dependent commands. Each command title includes a graphic that indicates remote interface applicability, IEEE-488 and RS-232, and command group: Sequential, Overlapped, and Coupled.
  • Page 215 Remote Commands Commands Examples: CLOCK 1998,6,1,9,52,10 sets clock to June 1, 1998, 9:52:10 AM CLOCK 13,10,10 sets clock time only to 1:10:10 PM CLOCK? IEEE-488 RS-232 Sequential Overlapped Coupled (Real_Time Clock query) Returns the date and time the real time clock. Response: (character) 1.
  • Page 216 5520A Operators Manual Parameter: (dampen on) (dampen off) Example: DAMPEN ON DAMPEN? IEEE-488 RS-232 Sequential Overlapped Coupled (Dampen Mode for Pressure Measurement query) Returns whether dampening (averaging) of pressure readings is active. Response: (character) ON (dampen on) (character) OFF (dampen off)
  • Page 217 Remote Commands Commands DBMZ_D IEEE-488 RS-232 Sequential Overlapped Coupled (dBm Impedance Default command) Sets the power-up and reset default impedance used for dBm outputs (ac volts). Parameters: Z50 (50 ohms) (75 ohms) (90 ohms) (100 ohms) Z100 (135 ohms) Z135 (150 ohms) Z150 (300 ohms)
  • Page 218 5520A Operators Manual Example: DC_OFFSET? returns +1.44E−03 Returns 1.44 mV as the value of the applied dc offset. If +0.00000E+00 is returned, the dc offset is zero. IEEE-488 RS-232 Sequential Overlapped Coupled (Displacement Power Factor command) Sets the displacement power factor (phase angle) between the Calibrator front panel terminals NORMAL and AUX (for sine waves output only).
  • Page 219 Remote Commands Commands Returns 12.34% for the value of the square wave duty cycle. EARTH IEEE-488 RS-232 Sequential Overlapped Coupled (Earth Ground command) Selects whether or not the Calibrator front panel NORMAL LO terminal is tied to chassis (earth) ground. Once set, the Calibrator retains the earth setting until power off or reset.
  • Page 220 5520A Operators Manual ERR? IEEE-488 RS-232 Sequential Overlapped Coupled (Error query) Returns the first error code contained in the Calibrator error queue, then removes that error code from the queue. Following the error code is an explanation of the error code, similar to but sometimes containing more specific information than the EXPLAIN? command.
  • Page 221 Remote Commands Commands ERR_UNIT? IEEE-488 RS-232 Sequential Overlapped Coupled (UUT Error Unit Thresh Hold query) Returns presently selected values of ERR_UNIT. Responses: GT1000 UUT error is displayed in % above 1000 ppm, ppm below GT100 UUT error is displayed in % above 100 ppm, ppm below GT10 UUT error is displayed in % above 10 ppm, ppm below UUT error is displayed in ppm always...
  • Page 222 5520A Operators Manual Example: EXPLAIN? 539 returns “Can’t change compensation now.” Returns the explanation of error 539: “Can’t change compensation now.” EXTGUARD IEEE-488 RS-232 Sequential Overlapped Coupled (External guardcommand) Connects or disconnects the internal guard shield from the LO binding post.
  • Page 223 Remote Commands Commands FORMAT IEEE-488 RS-232 Sequential Overlapped Coupled (Format command) Use with extreme care. Restores the contents of the nonvolatile memory device to factory defaults. The memory holds calibration constants and setup parameters. You lose all calibration data permanently. The CALIBRATION switch on the rear panel of the Calibrator must be set in the ENABLE position or an execution error occurs, except for FORMAT SETUP.
  • Page 224 NORMAL terminals at 60 Hz and the frequency of the voltage output on the AUX terminals at the 7th harmonic (420 Hz). The range for the harmonics is 1 to 50. Parameters: <value>, PRI (fundamental at 5520A NORMAL terminals) <value>, SEC (fundamental at 5520A AUX terminals)
  • Page 225 2. Model number 3. Serial number 4. Firmware revision levels for the Main CPU+Front Panel CPU+Inguard Example: *IDN? returns FLUKE,5520A,5248000,1.2+1.3+1.3 Returns Fluke manufacturer, model 5520A, serial number 5248000, main firmware version 1.2, encoder firmware 1.3, and inguard PGA 1.3. INCR IEEE-488 RS-232...
  • Page 226 5520A Operators Manual ISCE IEEE-488 RS-232 Sequential Overlapped Coupled (Instrument Status Change Enable command) Loads two bytes into the two 16-bit ISCE mask registers (ISCE1 and ISCE0). (See “Instrument Status Change Enable Registers” in Chapter 5 for more information.) Parameter: <value>...
  • Page 227 Remote Commands Commands Parameter: <value> (decimal equivalent of the 16 bits, 0 to 32767) Example: ISCE1 6272 Load decimal 6272 (binary 0001010001000000) to enable bits 12 (SETTLED), 10 (REMOTE) and 6 (HIVOLT). ISCE1? IEEE-488 RS-232 Sequential Overlapped Coupled (Instrument Status 1 to 0 Change Enable query) Returns the two bytes from the 16-bit ISCE1 register.
  • Page 228 5520A Operators Manual ISR? IEEE-488 RS-232 Sequential Overlapped Coupled (Instrument Status Register query) Returns contents of the Instrument Status Register. Response: <value> (decimal equivalent of the 16 bits, 0 to 32767) Example: ISR? returns 6272 Returns decimal 6272 (binary 0001010001000000) if bits 12 (SETTLED), 10 (REMOTE), and 6 (HIVOLT) are set to 1.
  • Page 229 Remote Commands Commands LIMIT IEEE-488 RS-232 Sequential Overlapped Coupled (Limit command) Sets the maximum permissible output magnitude, negative and positive, for voltage and current, which is saved in the Calibrator non-volatile memory. (While saving configuration data in the non-volatile memory, a period of about 2 seconds, the Calibrator does not respond to remote commands.) Both negative and positive values must be entered.
  • Page 230 5520A Operators Manual Parameter: (None) Example: LOCKOUT Set the instrument into the front panel lockout state. The front panels controls cannot be used. LOWS IEEE-488 RS-232 Sequential Overlapped Coupled (Low Potential Output Terminals command) Selects whether or not the Calibrator front panel NORMAL LO terminal and AUX LO terminal are internally tied together (default) or are open.
  • Page 231 Remote Commands Commands Example: MULT 2.5 Multiply the existing reference by 2.5, creating a new reference. For example, an existing reference of 1 V is multiplied to 2.5 V. NEWREF IEEE-488 RS-232 Sequential Overlapped Coupled (New Reference command) Sets the new reference to the present Calibrator output value and exit the error mode (if selected).
  • Page 232 5520A Operators Manual *OPC? IEEE-488 RS-232 Sequential Overlapped Coupled (Operations Complete query) Returns a 1 after all pending operations are complete. This command causes program execution to pause until operations are complete. (See *WAI.) Response: (all operations are complete) Example: *OPC? returns 1 Returns 1 when all pending operations are complete.
  • Page 233 Remote Commands Commands IEEE-488 RS-232 Sequential Overlapped Coupled (Output command) Sets the output of the Calibrator and establishes a new reference point for the error mode. If only one amplitude is supplied, the Calibrator sources a single output. If two amplitudes are supplied, the Calibrator sources two outputs. The second amplitude will be sourced at the AUX terminals for dual voltage outputs.
  • Page 234 5520A Operators Manual Examples: (volts; 15.2 V @ same frequency) OUT 15.2 V (volts; 20 dBm @ same frequency) OUT 20 DBM (volts ac; 10 V @ 60 Hz) OUT 10 V, 60 Hz (volts ac; 10 dBm @ 50 Hz) OUT 10 DBM, 50 HZ (current;...
  • Page 235 Remote Commands Commands The respective values for the above examples are: −15.2 V 188.3 mA, 442 Hz 1.23 V, 2.34 V, 60 Hz 1.924 MΩ 15.2 V, 188.3 mA, 442 Hz 25.86 dBm, 442 Hz (25.86 dBm = 15.2 V at 600 Ω) 104.3 °C 219.74 °F (same value as 104.3 °C, in Fahrenheit) 4.274 mV (same value as 104.3 °C for a K-type thermocouple, in volts)
  • Page 236 5520A Operators Manual PHASE? returns −6.000E+01 Example: Returns −60 when the frequency output at the AUX terminals is lagging the frequency output at the NORMAL terminals by 60 degrees. POWER? IEEE-488 RS-232 Sequential Overlapped Coupled (Calculate Power Output query) Returns the equivalent real power for ac and dc power outputs, based on the voltage and current settings, and power factor (ac only).
  • Page 237 Remote Commands Commands PRES_MEAS IEEE-488 RS-232 Sequential Overlapped Coupled (Pressure Measurement mode command) Changes the operating mode to pressure measurement. Parameter: (Optional) Pressure units Example: PRES_MEAS PSI Displays the previously selected units if no parameter is supplied. PRES_UNIT IEEE-488 RS-232 Sequential Overlapped Coupled...
  • Page 238 5520A Operators Manual PRES_UNIT_D IEEE-488 RS-232 Sequential Overlapped Coupled (Pressure Units Default command) Sets the power-up and reset default pressure display units. Parameters: PSI (pound-force per square inch) (meters of mercury) (inches of mercury) INHG (inches of water) INH2O (feet of water)
  • Page 239 5520A non-volatile memory. (While saving configuration data in the non- volatile memory, a period of about 2 seconds, the 5520A does not respond to remote commands.) This command works only when the CALIBRATION switch on the rear panel of the Calibrator is in the ENABLE position.
  • Page 240 5520A Operators Manual Examples: (dc volts 330 mV range) DC330MV,0 (dc current 33 mA range) DC33MA_A,0 (ac volts 3.3 V range) AC3_3V,0 (ac current 330 mA range) AC330MA_A,0 (ohms 110 Ω range) R110OHM,0 (capacitance 1.1 µF range) C1_1UF,0 (temperature thermocouple source) TCSRC,0 (temperature RTD 110 Ω...
  • Page 241 Remote Commands Commands REFCLOCK IEEE-488 RS-232 Sequential Overlapped Coupled (Reference Clock command) Sets the reference clock source (internal or through the 10 MHz IN BNC connector). Parameter (Sets internal reference clock) (Sets external reference clock) Example: REFCLOCK INT Once set, the Calibrator retains the external guard setting until power off or reset. REFCLOCK? IEEE-488 RS-232...
  • Page 242 5520A Operators Manual REFOUT? IEEE-488 RS-232 Sequential Overlapped Coupled (Reference Output query) Returns the present value of the reference when editing the output (error mode). If not editing the output using the INCR command, the return is 0 (0E+00). The reference value is set with the OUT, NEWREF or MULT commands. To determine which quantity is being edited, use the EDIT? and OUT? commands.
  • Page 243 Remote Commands Commands REFPHASE_D IEEE-488 RS-232 Sequential Overlapped Coupled (Reference Phase Default command) If two Calibrators are synchronized using 10 MHz IN/OUT, sets the power-up and reset default phase difference between the primary channel on the Calibrator relative to the sync pulse on the 10 MHz IN or OUT terminal. The primary channel is the NORMAL, AUX, or 20A terminal for single outputs and the NORMAL terminal for ac power and ac dual voltage outputs.
  • Page 244 5520A Operators Manual RPT_STR IEEE-488 RS-232 Sequential Overlapped Coupled (Report String command) Loads the user report string. The user report string can be read on the Control Display in local operation, and appears on calibration reports. The CALIBRATION switch must be set to ENABLE. (Sequential command.)
  • Page 245 Remote Commands Commands Example: *RST Place the Calibrator in a reset condition, evoking the commands and values shown above. RTD_TYPE IEEE-488 RS-232 Sequential Overlapped Coupled (Resistance Temperature Detector Type command) Sets the Resistance Temperature Detector (RTD) sensor type. Before using RTD_TYPE, select RTD using the TSENS_TYPE command. After using RTD_TYPE, select the output temperature using the OUT command.
  • Page 246 5520A Operators Manual (100-ohm RTD, curve α=0.00385 ohms/ohm/°C) Parameters: PT385 PT385_200 (200-ohm RTD, curve α=0.00385 ohms/ohm/°C) PT385_500 (500-ohm RTD, curve α=0.00385 ohms/ohm/°C) PT385_1000 (1000-ohm RTD, curve α=0.00385 ohms/ohm/°C) (100-ohm RTD, curve α=0.003926 ohms/ohm/°C) PT3926 (100-ohm RTD, curve α=0.003916 ohms/ohm/°C) PT3916...
  • Page 247 Remote Commands Commands Example: SP_SET 9600,TERM,XON,DBIT8,SBIT1,PNONE,CRLF Set the parameters for the rear panel SERIAL 1 FROM HOST serial port to the factory default values. SP_SET? IEEE-488 RS-232 Sequential Overlapped Coupled (Host Serial Port Set query) Returns the RS-232-C settings for the Calibrator rear panel SERIAL 1 FROM HOST serial port.
  • Page 248 5520A Operators Manual SPLSTR IEEE-488 RS-232 Sequential Overlapped Coupled (Serial Poll String command) Sets the Serial Poll String (string up to 40 characters) which is saved in the Calibrator non-volatile memory. (While saving configuration data in the non-volatile memory, a period of about 2 seconds, the Calibrator does not respond to remote commands.) The SPLSTR is sent to the host over the serial interface when a...
  • Page 249 Remote Commands Commands *SRE? IEEE-488 RS-232 Sequential Overlapped Coupled (Service Request Enable query) Returns the byte in the Service Request Enable (SRE). Response: <value> (the decimal equivalent of the SRE byte, 0 to 191) Example: *SRE? returns 56 Returns 56 when bits 3 (EAV), 4 (MAV), and 5 (ESR) are enabled. SRQSTR IEEE-488 RS-232...
  • Page 250 5520A Operators Manual STBY IEEE-488 RS-232 Sequential Overlapped Coupled (Standby command) Deactivates the Calibrator output if it is in operate. This is the same as pressing the Calibrator front panel Y key. Parameter: (None) Example: STBY Disconnect the selected output from the Calibrator front panel terminals.
  • Page 251 Remote Commands Commands TC_OTCD IEEE-488 RS-232 Sequential Overlapped Coupled (Thermocouple Open Detection command) Activates or deactivates the open thermocouple detection circuit in thermocouple measurement mode. Once set, the Calibrator retains open thermocouple detection circuit setting until power off or reset. Parameters: ON (turn on thermocouple detection circuit) (default) (turn off thermocouple detection circuit)
  • Page 252 5520A Operators Manual Returns Internal, 29.88, Celsius, when the thermocouple reference is internal and at 29.88 °C. (If the temperature return for the internal reference is 0 (0.00E+00), the Calibrator is not in Operate, and/or the Calibrator is not in a thermocouple mode.)
  • Page 253 Remote Commands Commands TC_TYPE? IEEE-488 RS-232 Sequential Overlapped Coupled (Thermocouple Type query) Returns the Thermocouple (TC) temperature sensor type. When the thermocouple type is changed while simulating a temperature output, the temperature is changed to 0 °C. Responses: (B-type thermocouple) (C-type thermocouple) (E-type thermocouple) (J-type thermocouple)
  • Page 254 5520A Operators Manual TC_TYPE_D? IEEE-488 RS-232 Sequential Overlapped Coupled (Thermocouple Type Default query) Returns the default thermocouple (TC) sensor type. Responses: (B-type thermocouple) (C-type thermocouple) (E-type thermocouple) (J-type thermocouple) (K-type thermocouple) (default) (N-type thermocouple) (R-type thermocouple) (S-type thermocouple) (T-type thermocouple) (10 µV/°C linear output)
  • Page 255 Remote Commands Commands to thermocouple measurement if this is not already the operating mode. (This command is equivalent to sending TC_MEAS;*WAI;VAL?) Responses: <measurement value>,CEL (value is in Celsius) <measurement value>,FAR (value is in Fahrenheit) (value is over or under capability) 0.00E+00,OVER (open thermocouple) 0.00E+00,OPENTC...
  • Page 256 5520A Operators Manual *TST? IEEE-488 RS-232 Sequential Overlapped Coupled (Self Test command) Initiates self-test and returns a 0 for pass or a 1 for fail. If any faults are detected, they are displayed on screen (terminal mode) or are logged into the fault queue where they can be read by the ERR? query (computer mode).
  • Page 257 Remote Commands Commands Returns (for example) a measurement from the UUT. The format is #2 (two numbers follow) 11 (characters follow) +1.99975E+0 (11 characters). UUT_RECVB? IEEE-488 RS-232 Sequential Overlapped Coupled (UUT Receive Binary Data query) Returns binary data as integers from the UUT serial port.
  • Page 258 5520A Operators Manual Character String Follow the instructions above and after the character string, add a \n for CR or \r for LF or both, where the alpha character is entered in lower case. For example, in the terminal mode to send the string REMS in this format with both CR and LF, the command would be UUT_SEND “REMS\n\r”.
  • Page 259 Remote Commands Commands UUT_SET? IEEE-488 RS-232 Sequential Overlapped Coupled (UUT Serial Port Set query) Returns the RS-232-C settings for the Calibrator rear panel SERIAL 2 TO UUT serial port. (To return the parameters for the rear panel SERIAL 1 FROM HOST serial port, see the SP_SET? command.) The factory default values are shown below in bold type.
  • Page 260 5520A Operators Manual *WAI command is useful with any overlapped command, preventing the Calibrator from processing other commands until the overlapped command is processed. Example: *WAI Process all existing commands before continuing. WAVE IEEE-488 RS-232 Sequential Overlapped Coupled (Waveform command) Sets the waveforms for ac outputs. If the Calibrator is sourcing one output, one parameter is required.
  • Page 261 Remote Commands Commands Example: WAVE? returns SQUARE,NONE Returns SQUARE when the ac primary output (Calibrator front panel NORMAL terminals) is a square wave and NONE when there is no secondary output on the front panel AUX terminals. ZCOMP IEEE-488 RS-232 Sequential Overlapped Coupled...
  • Page 262 5520A Operators Manual Example: ZERO_MEAS ON Sets the zero offset to the present measurement value. Example: ZERO_MEAS ON,14.7 Sets the zero offset to 14.7 for an absolute pressure module. ZERO_MEAS? IEEE-488 RS-232 Sequential Overlapped Coupled (Zero Offset for Pressure Measurement query) Returns the zero offset for the pressure module or capacitance measurement using the -SC600.
  • Page 263 Chapter 7 Maintenance Contents Page 7-1. Introduction................... 7-3 7-2. Replacing the Line Fuse ............... 7-3 7-3. Cleaning the Air Filter ................7-5 7-4. General Cleaning .................. 7-6 7-5. Performance Tests ................7-7...
  • Page 264 5520A Operators Manual...

  • Page 265: Introduction

    Maintenance Introduction 7-1. Introduction This chapter explains how to perform the routine maintenance and calibration task required to keep a normally operating 5520A Calibrator in service. These tasks include: • Replacing the fuse • Cleaning the air filter • Cleaning the external surfaces •...
  • Page 266 5520A Operators Manual LINE VOLTAGE INDICATOR CHANGING LINE FUSE CHANGING LINE VOLTAGE nn007f.eps Figure 7-1. Accessing the Fuse...

  • Page 267: Cleaning The Air Filter

    Maintenance Cleaning the Air Filter 7-3. Cleaning the Air Filter Warning To avoid risk of injury, never operate or power the 5520A calibrator without the fan filter in place. CAUTION Damage caused by overheating may occur if the area around the fan is restricted, the intake air is too warm, or the filter becomes clogged.

  • Page 268: General Cleaning

    5520A Operators Manual oqo62f.eps Figure 7-2. Accessing the Air Filter 7-4. General Cleaning For general cleaning, wipe the case, front panel keys, and lens using a soft cloth slightly dampened with water or a non-abrasive mild cleaning solution that does not harm plastics.

  • Page 269: Performance Tests

    Performance Tests 7-5. Performance Tests To verify that the 5520A meets its specifications, you can use Tables 7-2 through 7-14. The tables are for qualified metrology personnel who have access to a standards laboratory that is properly equipped to test calibration equipment of this level of accuracy.
  • Page 270 5520A Operators Manual Table 7-3. Verification Tests for DC Voltage (AUX) Range Output Lower Limit Upper Limit 329.999 mV 0.000 mV -0.350 mV 0.350 mV 329.999 mV 329.000 mV 328.551 mV 329.449 mV 329.999 mV -329.000 mV -329.449 mV -328.551 mV 3.29999 V...
  • Page 271 Maintenance Performance Tests Table 7-4. Verification Tests for DC Current (AUX) Range Output Lower Limit Upper Limit 329.999 µA 0.000 µA -0.020 µA 0.020 µA 329.999 µA 190.000 µA 189.957 µA 190.043 µA 329.999 µA -190.000 µA -190.043 µA -189.957 µA 329.999 µA 329.000 µA 328.941 µA...
  • Page 272 5520A Operators Manual Table 7-5. Verification Tests for Resistance Range Output Lower Limit Upper Limit 10.9999 Ω 0.0000 Ω -0.0010 Ω 0.0010 Ω 10.9999 Ω 2.0000 Ω 1.9989 Ω 2.0011 Ω 10.9999 Ω 10.9000 Ω 10.8986 Ω 10.9014 Ω 32.9999 Ω...
  • Page 273 Maintenance Performance Tests Table 7-5. Verification Tests for Resistance (cont) Range Output Lower Limit Upper Limit 10.99999 MΩ 3.30000 MΩ 3.29959 MΩ 3.30041 MΩ 10.99999 MΩ 10.90000 MΩ 10.89875 MΩ 10.90125 MΩ 32.99999 MΩ 11.90000 MΩ 11.89512 MΩ 11.90488 MΩ 32.99999 MΩ...
  • Page 274 5520A Operators Manual Table 7-6. Verification Tests for AC Voltage (Normal) Range Output Frequency Lower Limit Upper Limit 32.999 mV 3.000 mV 45 Hz 2.994 mV 3.006 mV 32.999 mV 3.000 mV 10 kHz 2.994 mV 3.006 mV 32.999 mV 30.000 mV...
  • Page 275 Maintenance Performance Tests Table 7-6. Verification Tests for AC Voltage (Normal) (cont) Range Output Frequency Lower Limit Upper Limit 3.29999 V 3.00000 V 450 kHz 2.99340 V 3.00660 V 3.29999 V 3.29000 V 2 MHz 0.07500 V (Note) 32.9999 V 3.3000 V 45 Hz 3.2990 V...
  • Page 276 5520A Operators Manual Table 7-7. Verification Tests for AC Voltage (AUX) Output, AUX Range (Note) Frequency Lower Limit Upper Limit 329.999 mV 10.000 mV 45 Hz 9.622 mV 10.378 mV 329.999 mV 10.000 mV 1 kHz 9.622 mV 10.378 mV 329.999 mV...
  • Page 277 Maintenance Performance Tests Table 7-8. Verification Tests for AC Current Range Output Frequency Lower Limit Upper Limit 329.99 µA 33.00 µA 32.87 µA 33.13 µA 1 kHz 329.99 µA 33.00 µA 32.60 µA 33.40 µA 10 kHz 329.99 µA 33.00 µA 32.20 µA 33.80 µA 30 kHz...
  • Page 278 5520A Operators Manual Table 7-8. Verification Tests for AC Current (cont) Range Output Frequency Lower Limit Upper Limit 32.999 mA 19.0000 mA 30 kHz 18.935 mA 19.065 mA 32.999 mA 32.9000 mA 10 Hz 32.849 mA 32.951 mA 32.999 mA 32.9000 mA...
  • Page 279 Maintenance Performance Tests Table 7-8. Verification Tests for AC Current (cont) Range Output Frequency Lower Limit Upper Limit 2.99999 A 2.99000 A 10 kHz 2.92520 A 3.05480 A 20.5000 A 3.3000 A 500 Hz 3.2954 A 3.3046 A 20.5000 A 3.3000 A 1 kHz 3.2954 A...
  • Page 280 5520A Operators Manual Table 7-9. Verification Tests for Capacitance Test Frequency Range Output or Current Lower Limit Upper Limit 0.3999 nF 0.1900 nF 5 kHz 0.1793 nF 0.2007 nF 0.3999 nF 0.3500 nF 1 kHz 0.3387 nF 0.3613 nF 1.0999 nF 0.4800 nF...
  • Page 281 Maintenance Performance Tests Table 7-9. Verification Tests for Capacitance (cont) Test Frequency Range Output or Current Lower Limit Upper Limit 900 µA dc 10.9999 mF 3.3000 mF 3.2788 mF 3.3212 mF 10.9999 mF 10.9000 mF 2.7 mA dc 10.8529 mF 10.9471 mF 32.9999 mF 20.0000 mF...
  • Page 282 5520A Operators Manual Table 7-12. Verification Tests for Phase Accuracy, V and V Range, Output, Lower Upper Normal Normal Range, AUX Output, Phase Limit Limit ° ° ° Output, V Frequency Output 3.29999 3.00000 65 Hz 3.29999 V 3.00000 V -0.10...
  • Page 283 Maintenance Performance Tests Table 7-13. Verification Tests for Phase Accuracy, V and I Range, Lower Upper Normal Output, Freq- Range, AUX Phase Limit Limit ° ° ° Output Normal uency Output Output, AUX 329.999 mV 30.000 mV 65 Hz 329.99 mA 300.00 mA -0.10 0.10...
  • Page 284 5520A Operators Manual Table 7-14. Verification Tests for Frequency Range, Normal Output, Lower Limit Upper Limit Output, V Normal, V Frequency (Note) (Note) 3.29999 3.00000 119.00 Hz 118.99970 Hz 119.00030Hz 120.0 Hz 119.99970 Hz 120.00031 Hz 1000.0 Hz 999.9975 Hz 1000.0025 Hz...
  • Page 285 Chapter 8 Oscilloscope Calibration Options • Option SC600: see page 8-3. • Option SC300: see page 8-57.
  • Page 286 5520A Operators Manual...
  • Page 287 5520A-SC600 Option Contents Page 8-1. Introduction................... 8-5 8-2. SC600 Option Specifications..............8-5 8-3. Volt Specifications ................8-6 8-4. Edge Specifications ................8-7 8-5. Leveled Sine Wave Specifications ........... 8-8 8-6. Time Marker Specifications ............. 8-9 8-7. Wave Generator Specifications ............8-9 8-8.
  • Page 288 5520A Operators Manual 8-37. Sweeping Through a Frequency Range..........8-24 8-38. Oscilloscope Frequency Response Calibration Procedure....8-24 8-39. Calibrating the Time Base of an Oscilloscope ........8-26 8-40. The Time Marker Function .............. 8-26 8-41. Time Base Marker Calibration Procedure for an Oscilloscope ..8-27 8-42.
  • Page 289 8-2. SC600 Option Specifications These specifications apply only to the SC600 Option. General specifications that apply to the 5520A (hereafter termed the Calibrator) can be found in Chapter 1. The specifications are valid under the following conditions: • The Calibrator is operated under the conditions specified in Chapter 1.
  • Page 290 5520A Operators Manual 8-3. Volt Specifications Table 8-1. Volt Specifications Volt Function dc Signal Square Wave Signal [1] 50 Ω Load 50 Ω Load 1 MΩ Load 1 MΩ Load Amplitude Characteristics 0 V to ±6.6 V 0 V to ±130 V ±1 mV to...
  • Page 291 5520A-SC600 Option SC600 Option Specifications 8-4. Edge Specifications Table 8-2. Edge Specifications 1-Year Absolute Uncertainty, Edge Characteristics into 50 Ω Load tcal ± 5 °C ≤ 300 ps Rise Time (+0 ps / -100 ps) ± (2% of output + 200 µV) Amplitude Range (p-p) 5.0 mV to 2.5 V...
  • Page 292 5520A Operators Manual 8-5. Leveled Sine Wave Specifications Table 8-3. Leveled Sine Wave Specifications Frequency Range Leveled Sine Wave Characteristics 50 kHz 50 kHz to 100 MHz to 300 MHz to into 50 Ω (reference) 100 MHz 300 MHz 600 MHz...
  • Page 293 5520A-SC600 Option SC600 Option Specifications 8-6. Time Marker Specifications Table 8-4. Time Marker Specifications Time Marker into 20 ms to 50 ns to 5 ns to 50 Ω 5 s to 50 ms 100 ns 20 ns 10 ns 2 ns ±...
  • Page 294 5520A Operators Manual 8-8. Pulse Generator Specifications Table 8-6. Pulse Generator Specifications Positive pulse into 50 Ω Pulse Generator Characteristics Typical rise/fall times 1 ns Available Amplitudes 2.5 V, 1 V, 250 mV, 100 mV, 25 mV, 10 mV Pulse Width Range 4 ns to 44.9 ns [1]...
  • Page 295 5520A-SC600 Option SC600 Option Specifications 8-9. Trigger Signal Specifications (Pulse Function) Table 8-7. Trigger Signal Specifications (Pulse Function) Time Marker Amplitude into 50 Ω (p-p) Period Division Ratio [1] Typical Rise Time ≥ 1 V ≤ 2 ns 20 ms to 150 ns off/1/10/100 8-10.
  • Page 296 5520A Operators Manual 8-14. Oscilloscope Input Resistance Measurement Specifications Table 8-12. Oscilloscope Input Resistance Measurement Specifications 50 Ω Scope input selected 1 MΩ 40 Ω to 60 Ω Measurement Range 500 kΩ to 1.5 MΩ Uncertainty 0.1 % 0.1 % 8-15.
  • Page 297 5520A-SC600 Option Oscilloscope Connections 8-17. Oscilloscope Connections Using the cable supplied with the SC600 Option, connect the SCOPE output on the Calibrator to one of the channel connectors on your oscilloscope (see Figure 8-1). To use the external trigger, connect the TRIG OUT output on the Calibrator to the external trigger connection on your oscilloscope.
  • Page 298 5520A Operators Manual 8-19. The Output Signal The following description assumes that you have selected VOLT mode from the SCOPE menu. The Control Displays appears as follows with VOLT mode selected: Output @ SCOPE. TRIG V/DIV MODE 1 MΩ DC<-AC...
  • Page 299 5520A-SC600 Option Starting the SC600 Option 8-22. Adjusting Values with the Rotary Knob To adjust values in the Output Display using the rotary knob: 1. Turn the rotary knob. A cursor appears in the Output Display under the lowest digit and begins changing that digit.
  • Page 300 5520A Operators Manual After resetting the Calibrator, press a to return to the SC600 Option (the SCOPE menu appears.) Press O to reconnect the signal output. 8-25. Calibrating the Voltage Amplitude on an Oscilloscope The oscilloscope voltage (vertical) gain is calibrated by applying a dc or low frequency square wave signal and adjusting its gain to meet the height specified for different voltage levels, as designated by the graticule line divisions on the oscilloscope.
  • Page 301 5520A-SC600 Option Calibrating the Voltage Amplitude on an Oscilloscope • MODE Indicates you are in VOLT mode. Use the softkey to change modes and open menus for other oscilloscope calibration modes. 8-27. The V/DIV Menu The V/DIV menu, shown below, sets the number of volts denoted by each division on the oscilloscope.
  • Page 302 5520A Operators Manual 8-29. Oscilloscope Amplitude Calibration Procedure The following example describes how to use the VOLT menu to calibrate the oscilloscope’s amplitude gain. During calibration, you will need to set different voltages and verify that the gain matches the graticule lines on the oscilloscope according to the specifications for your particular oscilloscope.
  • Page 303 TD PULSE Press once to turn the Tunnel Diode Pulser drive signal on, again to turn the Pulser drive off. This signal sources up to 100 V p-p to drive a Tunnel Diode Pulser (Fluke Part Number 606522, Tektronix 067-0681-01, or equivalent.) •...
  • Page 304 5520A Operators Manual 8-32. Oscilloscope Pulse Response Calibration Procedure This sample procedure shows how to check the oscilloscope’s pulse response. Before you check your oscilloscope, see your oscilloscope’s manual for the recommended calibration settings. Before you start this procedure, verify that you are running the SC600 Option in EDGE mode.
  • Page 305 Calibrating the Pulse and Frequency Response on an Oscilloscope 8-33. Pulse Response Calibration Using a Tunnel Diode Pulser You can use the calibrator to drive a tunnel diode pulser (Fluke Part Number 606522, or Tektronix 067-0681-01, or equivalent), allowing you to check for pulse edge rise times as fast as 125 ps.
  • Page 306 5520A Operators Manual Output @ SCOPE MORE SET TO MODE terminal (50Ω). OPTIONS LAST F levsine (see LAST F volt “The 50 kHz edge MORE levsine OPTIONS marker Menu”) wavegen video pulse meas Z overld You can press the MODE softkey to cycle through the functions in the order shown, or you can press P to return directly to the SCOPE menu.
  • Page 307 5520A-SC600 Option Calibrating the Pulse and Frequency Response on an Oscilloscope 8-36. The MORE OPTIONS Menu When you select MORE OPTIONS, you open options that give you more control over the frequency and voltage. To access the MORE OPTIONS menu, press the softkey under MORE OPTIONS in the LEVSINE menu.

  • Page 308: Sweeping Through A Frequency Range

    5520A Operators Manual The default range setting is “auto,” which should always be used unless you are troubleshooting discontinuities in your oscilloscope’s vertical gain. The range setting will always return to “auto” after you leave LEVSINE mode. • MODE Indicates you are in LEVSINE mode. Use the softkey to change modes and open menus for other calibration modes.
  • Page 309 5520A-SC600 Option Calibrating the Pulse and Frequency Response on an Oscilloscope Before you start this example procedure, verify that you are running the SC600 Option in LEVSINE mode. If you are, the Control Display shows the following menu. Output @ SCOPE...

  • Page 310: Calibrating The Time Base Of An Oscilloscope

    5520A Operators Manual gl010i.eps 6. Remove the input signal by pressing Y. 7. Repeat this procedure for the remaining channels on your oscilloscope. 8-39. Calibrating the Time Base of an Oscilloscope The horizontal deflection (time base) of an oscilloscope is calibrated using a method similar to the vertical gain calibration.

  • Page 311: Time Base Marker Calibration Procedure For An Oscilloscope

    5520A-SC600 Option Calibrating the Time Base of an Oscilloscope • SHAPE Indicates the type of waveform. Depending on frequency setting, possible selections are sine, spike, square (50% duty cycle square wave), and sq20% (20% duty cycle square wave.) Note that selections available under SHAPE depend on the...

  • Page 312: Testing The Trigger Sc600 Option

    5520A Operators Manual Note You may enter the equivalent frequency instead of the time marker value. For example, instead of entering 200 ns, you may enter 5 MHz. 3. Set your oscilloscope’s time base to show 10 time markers. The time markers should align with the oscilloscope divisions, as shown in the example below.
  • Page 313 5520A-SC600 Option Testing the Trigger SC600 option The wave generator is available through the WAVEGEN menu, shown below. To access this menu, press the softkey under MODE until “wavegen” appears. Output @ WAVE SCOPE Z OFFSET MODE SCOPE square 1 MΩ...

  • Page 314: Testing Video Triggers

    5520A Operators Manual 8-43. Testing Video Triggers Output at SCOPE LINE MK FORMAT MODE terminal (50Ω). 10 ODD ntsc video ntsc volt edge pal-m levsine secam marker wavegen video overld meas Z pulse Mark = FIELD New mark = even You can press the MODE softkey to cycle through the functions in the order shown, or you can press P to return directly to the OTHER modes menu.

  • Page 315: Verifying Pulse Capture

    5520A-SC600 Option Verifying Pulse Capture 8-44. Verifying Pulse Capture Output @ AMPL TRIG MODE SCOPE 2.5 V pulse 2.5 V volt 1.0 V edge 250 mV levsine 100 mV /100 marker 25 mV wavegen 10 mV video pulse meas Z...

  • Page 316: Measuring Input Resistance And Capacitance

    5520A Operators Manual 8-45. Measuring Input Resistance and Capacitance Measured @ SCOPE MEASURE MODE terminal. res 50Ω meas Z res 50Ω volt res 1MΩ edge levsine marker wavegen video pulse meas Z overld You can press the MODE softkey to cycle through the functions in the order shown, or you can press Pto return directly to the OTHER modes menu.

  • Page 317: Input Capacitance Measurement

    5520A-SC600 Option Testing Overload Protection 8-47. Input Capacitance Measurement With MEAS Z mode selected, perform the following procedure to measure the input capacitance of an oscilloscope: 1. Set the oscilloscope for 1 MΩ input impedance. Note that input capacitance testing cannot be done with 50Ω...

  • Page 318: Remote Commands And Queries

    5520A Operators Manual Default overload settings are + 5.000 V and DC. At any time, you can also set the overload time limit with the following command sequence: INSTMT OTHER SETUP SETUP TLIMDEF (Choose 1s to 60s.) Perform the following procedure to test the overload protection of an oscilloscope: 1.

  • Page 319: General Commands

    8-50. General Commands SCOPE (IEEE-488, RS-232, Sequential) Programs the 5520A-SC oscilloscope calibration hardware, if installed. The instrument settings are determined by this command’s parameter. Once in SCOPE mode, use the OUT command to program new output in all functions except Impedance Measurement and the RANGE command as required (in OVERLD, PULSE, and MEAS Z functions only.) OPER, STBY, *OPC, *OPC?, and *WAI all operate as described in Chapter 6.
  • Page 320 5520A Operators Manual Table 8-15. SCOPE Command Parameters (cont.) Parameter Description/Example VIDEO Oscilloscope VIDEO mode. Programs 100% output (1 V p-p), line marker 10, format NTSC. FUNC? returns VIDEO. Examples: SCOPE VIDEO; OUT 90 (Video, 90% output) SCOPE VIDEO; OUT -70 (Video, -70% output, inverse video) Oscilloscope PULSE mode.
  • Page 321 5520A-SC600 Option Remote Commands and Queries TRIG? (IEEE-488, RS-232, Sequential) Returns the output setting of the oscilloscope’s trigger. Parameters: (None) Response: <character> (Returns OFF, DIV1, DIV10, or DIV100.) OUT_IMP (IEEE-488, RS-232, Sequential) Programs the oscilloscope’s output impedance. Parameters: Z50 (Programs the oscilloscope’s output impedance to 50Ω.)

  • Page 322: Edge Function Commands

    5520A Operators Manual 8-51. Edge Function Commands TDPULSE (IEEE-488, RS-232, Sequential) Turns tunnel diode pulse drive on/off in EDGE mode. Parameters: ON (or non-zero) or OFF (or zero) Example: TDPULSE ON Returns the tunnel diode pulse drive setting in EDGE mode.

  • Page 323: Overload Function Commands

    5520A-SC600 Option Remote Commands and Queries VIDEOFMT? (IEEE-488, RS-232, Sequential) Returns the VIDEO mode format. Parameters: None Response: NTSC, PAL, PALM (for PAL-M), or SECAM VIDEOMARK (IEEE-488, RS-232, Sequential) Programs the VIDEO mode line marker location. Parameters: Line marker number.

  • Page 324: Impedance/Capacitance Function Commands

    5520A Operators Manual TLIMIT_D (IEEE-488, RS-232, Sequential) Sets the default OPERATE time limit for the OVERLD mode signal. Parameters: 1 to 60 (seconds) Example: TLIMIT_D 15 TLIMIT_D? (IEEE-488, RS-232, Sequential) Returns the default overload time limit. Response: <Integer> Default time limit in seconds.

  • Page 325: Verification Tables

    5520A-SC600 Option Verification Tables 8-56. Verification Tables The verification test points areprovided here as a guide when verification to one-year specifications is desired. 8-57. DC Voltage Verification Table 8-16. DC Voltage Verification (1 MΩ output impedance unless noted) Nominal Measured Value...

  • Page 326: Ac Voltage Amplitude Verification

    5520A Operators Manual Table 8-16. DC Voltage Verification (cont.) Nominal Measured Deviation Value (V dc) Value (V dc) (V dc) 1-Year Spec. (V dc) 10.99 0.005535 -10.99 0.005535 0.00554 0.00554 70.5 0.03529 -70.5 0.03529 0.06504 -130 0.06504 6.599 (50 Ω) 0.0165375...

  • Page 327: Wave Generator Amplitude Verification: 50 Ω Output Impedance

    5520A-SC600 Option Verification Tables 8-60. Wave Generator Amplitude Verification: 1 M Ω Output Impedance Table 8-19. Wave Generator Amplitude Verification (1 MΩ output impedance) Nominal Frequency Measured Deviation 1-Year Spec. Wave Shape Value (V p-p) (Hz) Value (V p-p) (V p-p)
  • Page 328 5520A Operators Manual 8-61. Wave Generator Amplitude Verification: 50 Ω Output Impedance Table 8-20. Wave Generator Amplitude Verification (50 Ω output impedance) Nominal Frequency Measured Deviation 1-Year Spec. Wave Shape Value (V p-p) (Hz) Value (V p-p) (V p-p) (V p-p) square 0.0018...

  • Page 329: Leveled Sine Wave Verification: Amplitude

    5520A-SC600 Option Verification Tables 8-62. Leveled Sine Wave Verification: Amplitude Table 8-21. Leveled Sine Wave Verification: Amplitude Nominal Frequency Measured Deviation 1-Year Spec. Value (V p-p) Value (V p-p) (V p-p) (V p-p) 0.005 50 kHz 0.0004 0.0075 50 kHz 0.00045...

  • Page 330: Leveled Sine Wave Verification: Harmonics

    5520A Operators Manual 8-64. Leveled Sine Wave Verification: Harmonics Table 8-23. Leveled Sine Wave Verification: Harmonics Nominal Measured Deviation 1-Year Spec. Harmonic Value (V p-p) Frequency Value (dB) (dB) (dB) 2nd harmonic 0.0399 50 kHz 3rd+ harmonic 0.0399 50 kHz 2nd harmonic 0.099...

  • Page 331: Leveled Sine Wave Verification: Flatness

    5520A-SC600 Option Verification Tables 8-65. Leveled Sine Wave Verification: Flatness Table 8-24. Leveled Sine Wave Verification: Flatness Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (V p-p) (V p-p) (V p-p) 0.005 50 kHz 0.005 30 MHz 0.000175 0.005...
  • Page 332 5520A Operators Manual Table 8-24. Leveled Sine Wave Verification: Flatness (cont.) Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (V p-p) (V p-p) (V p-p) 0.01 50 kHz 0.01 30 MHz 0.00025 0.01 70 MHz 0.00025 0.01 120 MHz 0.0003...
  • Page 333 5520A-SC600 Option Verification Tables Table 8-24. Leveled Sine Wave Verification: Flatness (cont.) Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (V p-p) (V p-p) (V p-p) 0.04 70 MHz 0.0007 0.04 120 MHz 0.0009 0.04 290 MHz 0.0009 0.04...
  • Page 334 5520A Operators Manual Table 8-24. Leveled Sine Wave Verification: Flatness (cont.) Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (V p-p) (V p-p) (V p-p) 290 MHz 0.0021 360 MHz 0.0041 390 MHz 0.0041 400 MHz 0.0041 480 MHz 0.0041...
  • Page 335 5520A-SC600 Option Verification Tables Table 8-24. Leveled Sine Wave Verification: Flatness (cont.) Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (V p-p) (V p-p) (V p-p) 390 MHz 0.0161 400 MHz 0.0161 480 MHz 0.0161 570 MHz 0.0161 580 MHz 0.0161...
  • Page 336 5520A Operators Manual Table 8-24. Leveled Sine Wave Verification: Flatness (cont.) Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (V p-p) (V p-p) (V p-p) 480 MHz 0.0521 570 MHz 0.0521 580 MHz 0.0521 590 MHz 0.0521 600 MHz 0.0521...

  • Page 337: Edge Verification: Amplitude

    5520A-SC600 Option Verification Tables 8-66. Edge Verification: Amplitude Table 8-25. Edge Verification: Amplitude Nominal Frequency Measured Deviation 1-Year Spec. Value (V p-p) (Hz) Value (V p-p) (V p-p) (V p-p) 0.005 1 kHz 0.0003 0.005 10 kHz 0.0003 0.005 100 kHz 0.0003...

  • Page 338: Edge Verification: Rise Time

    5520A Operators Manual 8-69. Edge Verification: Rise Time Table 8-28. Edge Verification: Rise Time Nominal Measured Deviation 1-Year Spec. Value (V p-p) Frequency Value (s) (ns) (ns) 0.25 1 kHz 0.3 ns 0.25 100 kHz 0.3 ns 0.25 10 MHz 0.3 ns...

  • Page 339: Marker Generator Verification

    5520A-SC600 Option Verification Tables 8-71. Marker Generator Verification Table 8-30. Marker Generator Verification Period (s) Measured Value (s) Deviation (s) 1-Year Spec. (s) 0.0251 s 0.00405 s 0.05 3.75E-06 s 0.02 5E-8 0.01 2.5E-8 1e-7 2.5E-13 5e-8 1.25E-13 2e-8 5E-14 1e-8 2.5E-14...

  • Page 340: Input Impedance Verification: Resistance

    5520A Operators Manual 8-74. Input Impedance Verification: Resistance Table 8-33. Input Impedance Verification: Resistance Nominal Measured 1-Year Spec. Value (Ω) Value (Ω) Deviation (Ω) (Ω) 0.04 0.05 0.06 600000 1000000 1000 1500000 1500 8-75. Input Impedance Verification: Capacitance Table 8-34. Input Impedance Verification: Capacitance...
  • Page 341 5520A-SC300 Option Contents Page 8-76. Introduction................... 8-59 8-77. Oscilloscope Calibration Option Specifications........8-60 8-78. Volt Function Specifications............8-60 8-79. Edge Function Specifications............8-61 8-80. Leveled Sine Wave Function Specifications........8-62 8-81. Time Marker Function Specifications..........8-63 8-82. Wave Generator Specifications ............8-63 8-83.
  • Page 342 5520A Operators Manual 8-111. Verification Tables ................8-86 8-112. Voltage Function Verification: AC Voltage into a 1 MΩ Load ..8-86 Voltage Function Verification: AC Voltage into a 50 Ω Load..8-87 8-113. Voltage Function Verification: DC Voltage into a 50 Ω Load..8-88 8-114.

  • Page 343: Introduction

    5520A-SC300 Option Introduction 8-76. Introduction The Oscilloscope Calibration Option provides functions that help you maintain your oscilloscope’s accuracy by verifying the following oscilloscope characteristics: • Vertical deflection characteristics are verified by calibrating the voltage gain. The Volt function lets you compare the voltage gain to the graticule lines on the oscilloscope.

  • Page 344: Oscilloscope Calibration Option Specifications

    8-77. Oscilloscope Calibration Option Specifications These specifications apply only to the Oscilloscope Calibration Option. General specifications that apply to the 5520A Calibrator can be found in Chapter 1. The specifications are valid providing the 5520A is operated under the conditions specified in Chapter 1, and has completed a warm-up period of at least twice the length of time the calibrator was powered off, up to a maximum of 30 minutes.

  • Page 345: Edge Function Specifications

    5520A-SC300 Option Oscilloscope Calibration Option Specifications 8-79. Edge Function Specifications 1-Year Absolute Uncertainty, Edge Characteristics into 50 Ω tcal ± 5°C Amplitude ± (2% of output + 200 µV) Range (p-p) 4.5 mV to 2.75 V Resolution 4 digits ±10% around each sequence value...

  • Page 346: Leveled Sine Wave Function Specifications

    5520A Operators Manual 8-80. Leveled Sine Wave Function Specifications Frequency Range Leveled Sine Wave Characteristics into 50 Ω 50 kHz Reference 50 kHz to 100 MHz 100 to 300 MHz [1] Amplitude Characteristics Range (p-p) 5 mV to 5.5 V [1] Resolution <...

  • Page 347: Time Marker Function Specifications

    5520A-SC300 Option Oscilloscope Calibration Option Specifications 8-81. Time Marker Function Specifications 1 µs to 10 ns to Time Marker into 50 Ω 5 s to 100 µs 50 µs to 2 µs 20 ns 2 ns ± (25 + t *1000) ±...

  • Page 348: Trigger Signal Specifications For The Time Marker Function

    5520A Operators Manual 8-83. Trigger Signal Specifications for the Time Marker Function Time Marker Amplitude into 50 Ω (p-p) Period Division Ratio [1] Typical Rise Time ≥ 1 V ≤ 2 ns 5 to 1s off/1 ≥ 1 V ≤ 2 ns 0.5 to 0.1s...

  • Page 349: Oscilloscope Connections

    5520A to one of the channel connectors on your oscilloscope (see Figure 8-3. To use the external trigger, attach the TRIG OUT connector on the 5520A to the external trigger connection on your oscilloscope. To use the external trigger and view its signal with the calibration signal, attach the TRIG OUT connector to another channel.

  • Page 350: Starting The Oscilloscope Calibration Option

    The location of the output signal is indicated on the Control Display (the display on the right side). If your 5520A is connected, but the output does not appear on the oscilloscope, you may have the 5520A in standby mode.

  • Page 351: Adjusting The Output Signal

    Starting the Oscilloscope Calibration Option 8-88. Adjusting the Output Signal The 5520A provides several ways to change the settings for the output signal during calibration. Since oscilloscope calibration requires many adjustments of the output signal, the three available methods for changing these settings for oscilloscope calibration are summarized below.

  • Page 352: Using X And D

    5520A will beep. If you need to reach a different range of values, turn the knob quickly to jump to the new range.

  • Page 353: Calibrating The Voltage Amplitude On An Oscilloscope

    The signal is applied from the 5520A in Volt mode. The specific voltages that you should use for calibration, and the graticule line divisions that need to be matched, vary for different oscilloscopes and are specified in your oscilloscope’s service manual.

  • Page 354: The V/Div Menu

    5520A Operators Manual 8-95. The V/DIV Menu The V/DIV menu, shown below, sets the number of volts denoted by each division on the oscilloscope. This menu provides alternative methods for changing the output amplitude that may be more convenient for certain oscilloscope applications. To access the V/DIV menu, press V/DIV from the Volt menu.

  • Page 355: Amplitude Calibration Procedure For An Oscilloscope

    (1 MΩ for this example). Verify that the O key on the 5520A is lit, indicating that the signal is connected. 2. Key in the voltage level that is recommended for your oscilloscope. For example to enter 20 mV, press 20gV, then press E.

  • Page 356: Calibrating The Pulse And Frequency Response On An Oscilloscope

    5520A Operators Manual 8-98. Calibrating the Pulse and Frequency Response on an Oscilloscope The pulse response is calibrated with a square-wave signal that has a fast leading edge rise-time. Using this signal, you adjust the oscilloscope as necessary until it meets its particular specifications for rise time and pulse aberrations.

  • Page 357: Pulse Response Calibration Procedure For An Oscilloscope

    Perform the following sample procedure to calibrate the pulse response. 1. Connect the 5520A to Channel 1 on the oscilloscope. Select 50Ω impedance or use a 50Ω termination directly at the oscilloscope input. Verify that the O key is lit, indicating that the signal is connected.

  • Page 358: The Leveled Sine Wave Function

    5520A Operators Manual 8-101. The Leveled Sine Wave Function The Leveled Sine Wave (Levsine) function uses a leveled sine wave, whose amplitude remains relatively constant over a range of frequencies, to check the oscilloscope’s bandwidth. When you check your oscilloscope, you change the wave’s frequency until the amplitude displayed on the oscilloscope drops 30%, which is the amplitude that corresponds to the -3 dB point.

  • Page 359: The More Options Menu

    5520A-SC300 Option Calibrating the Pulse and Frequency Response on an Oscilloscope • The X and D keys step frequencies up or down in amounts that let you quickly access a new set of frequencies. For example, if the value is 250 kHz, X changes it to 300 kHz, and D changes it to 200 kHz.
  • Page 360 5520A Operators Manual • RANGE The softkeys toggle between two settings: “auto,” which adjusts the range limit automatically in accordance with the voltage level, and “locked,” which sets the available voltages to one range. There are six range limits in Levsine mode: 10 mV, 40 mV, 100 mV, 400 mV, 1.3 V, and 5.5 V.
  • Page 361 5520A-SC300 Option Calibrating the Pulse and Frequency Response on an Oscilloscope 8-104. Sweeping through a Frequency Range When you change frequencies using the sweep method, the output sine wave sweeps through a specified range of frequencies, letting you identify the frequency at which the oscilloscope’s signal exhibits certain behavior (e.g., changes amplitude).
  • Page 362 Perform the following sample procedure to calibrate the frequency response. 1. Reconnect the signal by pressing the O key on the 5520A. Select 50Ω impedance or use a 50 Ω external termination directly at the oscilloscope input 2. Adjust the sine wave settings in the Output Display according to the calibration recommendations in your oscilloscope manual.
  • Page 363 5520A-SC300 Option Calibrating the Pulse and Frequency Response on an Oscilloscope 4. Increase the frequency to 60 MHz (for 100-MHz instruments), or 150 MHz (for 200-MHz instruments). To enter 60 MHz, press 60MH; then press 5. Continue to increase the frequency slowly until the waveform decreases to 4.2 divisions, as shown below.
  • Page 364 The horizontal deflection (time base) of an oscilloscope is calibrated using a method similar to the vertical gain calibration. A time marker signal is generated from the 5520A and the signal’s peaks are matched to the graticule line divisions on the oscilloscope.
  • Page 365 5520A-SC300 Option Calibrating the Time Base of an Oscilloscope 8-108. Time Base Marker Calibration Procedure for an Oscilloscope This sample procedure uses the Time Marker function to check the horizontal deflection (time base) of your oscilloscope. See your oscilloscope’s manual for the exact time base values recommended for calibration.
  • Page 366 5520A Operators Manual 8-109. Testing the Trigger The oscilloscope’s ability to trigger on different waveforms can be tested using the wave generator. When the wave generator is used, a square, sine, or triangle wave is transmitted and the wave’s output impedance, offset, and voltage can be varied in order to test the triggering capability at different levels.
  • Page 367 5520A-SC300 Option Summary of Commands and Queries 8-110. Summary of Commands and Queries This section describes commands and queries that are used specifically for the oscilloscope calibration option. Each command description indicates whether it can be used with IEEE-488 and RS-232 remote interfaces and identifies it as a Sequential, Overlapped, or Coupled command.
  • Page 368 5520A Operators Manual IEEE-488 RS-232 Sequential Overlapped Coupled SCOPE Programs the oscilloscope calibration option hardware, if installed. The instrument settings are determined by this command’s parameter. Once in SCOPE mode, use the OUT command to program new output. OPER, STBY, *OPC, *OPC?, and *WAI all operate as described in Chapter 6. The state of the oscilloscope’s output while in SCOPE mode is reflected by the bit in the ISR that...
  • Page 369 5520A-SC300 Option Summary of Commands and Queries SCOPE? IEEE-488 RS-232 Sequential Overlapped Coupled Returns the oscilloscope’s current mode of operation. Returns OFF if the oscilloscope is off. Parameter: (None) Response: <character> (Returns OFF, VOLT, EDGE, LEVSINE, MARKER, or WAVEGEN.) TRIG...

  • Page 370: Verification Tables

    5520A Operators Manual 8-111. Verification Tables Before the SC300 Option leaves the Fluke factory, it is verified to meet its specifications at the following test points. The verification test points are provided here as a guide when re-verification is desired.

  • Page 371: Voltage Function Verification: Ac Voltage Into A 50 Ω Load

    5520A-SC300 Option Verification Tables Voltage Function Verification: AC Voltage into a 1 M Ω Load (cont.) Deviation 1-Year Spec. Nominal Value (p-p) Frequency Measured Value (p-p) (mV) (mV) 50.0 V 10 Hz 125.10 50.0 V 100 Hz 125.10 50.0 V 1 kHz 125.10...

  • Page 372: Voltage Function Verification: Dc Voltage Into A 50 Ω Load

    5520A Operators Manual Voltage Function Verification: AC Voltage into a 50 Ω Load (cont.) Deviation 1-Year Spec. Nominal Value (p-p) Frequency Measured Value (p-p) (mV) (mV) 2.0 V 100 Hz 5.10 2.0 V 1 kHz 5.10 2.0 V 5 kHz 5.10...
  • Page 373 5520A-SC300 Option Verification Tables 8-115. Voltage Function Verification: DC Voltage into a 1 M Ω Load Nominal Value 1-Year Spec. (dc) Measured Value (dc) Deviation (mV) (mV) 0.0 mV 0.10 5.0 mV 0.11 -5.0 mV 0.11 22.0 mV 0.15 -22.0 mV 0.15...

  • Page 374: Edge Function Verification

    5520A Operators Manual 8-116. Edge Function Verification Pulse Response Time 1-Year Spec. Nominal Value (p-p) Frequency (ηs) (ps) 25.0 mV 1 MHz 250.0 mV 1 MHz 250.0 mV 10 kHz 250.0 mV 100 kHz 250.0 mV 1 MHz 2.5 V 1 MHz 8-117.

  • Page 375: Wave Generator Function Verification: 50 Ω Load

    5520A-SC300 Option Verification Tables 8-118. Wave Generator Function Verification: 50 Ω Load Nominal Measured Value Deviation 1-Year Waveform Value (p-p) Frequency (p-p) (mV) Spec. (mV) Square 5.0 mV 10 kHz 0.25 mV Square 10.9 mV 10 kHz 0.43 mV Square 44.9 mV...
  • Page 376 5520A Operators Manual Leveled Sine Wave Function Verification: Amplitude (cont.) Measured Value Deviation 1-Year Spec. Nominal Value (p-p) Frequency (p-p) (mV) (mV) 400.0 mV 50 kHz 8.200 500.0 mV 50 kHz 1.200 1.3 V 50 kHz 26.200 2.0 V 50 kHz 40.200...
  • Page 377 5520A-SC300 Option Verification Tables Leveled Sine Wave Function Verification: Flatness (cont.) Deviation 1-Year Spec. Nominal Value (p-p) Frequency Measured Value (p-p) (mV) (mV) 10.0 mV 160 MHz 0.30 10.0 mV 200 MHz 0.30 10.0 mV 220 MHz 0.30 10.0 mV 235 MHz 0.30...
  • Page 378 5520A Operators Manual Leveled Sine Wave Function Verification: Flatness (cont.) Deviation 1-Year Spec. Nominal Value (p-p) Frequency Measured Value (p-p) (mV) (mV) 100.0 mV 220 MHz 2.10 100.0 mV 235 MHz 2.10 100.0 mV 250 MHz 2.10 400.0 mV 500 kHz 6.10...

  • Page 379: Leveled Sine Wave Function Verification: Frequency

    5520A-SC300 Option Verification Tables Leveled Sine Wave Function Verification: Flatness (cont.) Deviation 1-Year Spec. Nominal Value (p-p) Frequency Measured Value (p-p) (mV) (mV) 1.3 V 250 MHz 26.10 5.5 V 500 kHz 82.5 5.5 V 1 MHz 82.5 5.5 V 1 MHz 82.5...

  • Page 380: Marker Generator Function Verification

    5520A Operators Manual 8-122. Marker Generator Function Verification Nominal Interval Measured Interval Deviation 1-Year Spec. 25.12 ms 2.00s 4.05 ms 1.03 ms 262.50 µs 500.00 ms 45.00 µs 200.00 ms 12.50 µs 100.00 ms 3.75 µs 50.00 ms 20.00 ms 900.000 ns...
  • Page 381 Chapter 9 Accessories Contents Page 9-1. Introduction................... 9-3 9-2. Rack Mount Kit ..................9-4 9-3. IEEE-488 Interface Cables ..............9-4 9-4. RS-232 Null-Modem Cables ..............9-4 9-5. RS-232 Modem Cables................. 9-4 9-6. 5500A/LEADS..................9-4...
  • Page 382 5520A Operators Manual...
  • Page 383 RS-232 Null Modem Cable, 1.83 m (6 ft) (SERIAL 1 FROM HOST) to PC COM (DB-25) TC100 Test Instrument Cart Y5537 24 in. (61 cm) Rack Mount Kit for 5520A Y8021 Shielded IEEE-488 Cable 0.5 m (1.64 ft) Y8022 Shielded IEEE-488 Cable 2 m (6.56 ft)
  • Page 384 DTE (Data Terminal Equipment). Appendix D shows the pinouts for the serial connectors. 9-5. RS-232 Modem Cables The modem cable (PN 943738) connects the 5520A SERIAL 2 TO UUT port to a unit under test serial port (with DB-9 male connector). Appendix D shows the pinouts for the serial connectors.
  • Page 385 Appendices Appendix Contents Page Glossary....................... A-1 ASCII and IEEE-488 Bus Codes................. B-1 RS-232/IEEE-488 Cables and Connectors............C-1 Creating a Visual Basic Test Program ..............D-1 Error Messages....................E-1...
  • Page 387 The frequency range of human hearing; normally 15 - 20,000 Hz. artifact standard An object that produces or embodies a physical quantity to be standardized, for example a Fluke 732A dc Voltage Reference Standard. base units Units in the SI system that are dimensionally independent. All other units are derived...
  • Page 388 5520A Operators Manual buffer 1. An area of digital memory for temporary storage of data. 2. An amplifier stage before the final amplifier. burden voltage The maximum sustainable voltage across the terminals of a load. compliance voltage The maximum voltage a constant-current source can supply.
  • Page 389 The part of the uncertainty specification of an instrument that is typically a fixed offset plus noise. Floor can be expressed as units, such as microvolts or counts of the least significant digit. For the 5520A, the floor specification is combined with fixed range errors in one term to determine total uncertainty.
  • Page 390 5520A Operators Manual life-cycle cost The consideration of all elements contributing to the cost of an instrument throughout its useful life. This includes initial purchase cost, service and maintenance cost, and the cost of support equipment. linearity The relationship between two quantities when a change is the first quantity is directly proportional to a change in the second quantity.
  • Page 391 The stated upper end of a measurement device’s span. Usually, however, a measurement device can measure quantities for a specified percentage overrange. (The absolute span including overrange capability is called “scale.”) In the 5520A, however, range and scale are identical.
  • Page 392 5520A Operators Manual repeatability The degree of agreement among independent measurements of a quantity under the same conditions. resistance A property of a conductor that determines the amount of current that will flow when a given amount of voltage exists across the conductor. Resistance is measured in ohms.
  • Page 393 Appendices Glossary specifications A precise statement of the set of requirements satisfied by a measurement system or device. stability A measure of the freedom from drift in value over time and over changes in other variables such as temperature. Note that stability is not the same as uncertainty. standard A device that is used as an exact value for reference and comparison.
  • Page 394 5520A Operators Manual true power The actual power (real power) used to produce heat or work. Compare to ‘apparent power.” true value Also called legal value, the accepted, consensus, i.e., the correct value of the quantity being measured. uncertainty The maximum difference between the accepted, consensus, or true value and the measured value of a quantity.
  • Page 395 Appendix B ASCII and IEEE-488 Bus Codes...
  • Page 396 5520A Operators Manual...
  • Page 397 Appendices ASCII and IEEE-488 Bus Codes ASCII DEV. MESSAGE ASCII BINARY BINARY DEV. MESSAGE OCTAL DECIMAL OCTAL DECIMAL CHAR. 7654 3210 ATN=TRUE CHAR. 7654 3210 ATN=TRUE BELL SPACE " & < >...
  • Page 398 5520A Operators Manual...
  • Page 399 The IEEE-488 connector on the rear panel mates with an IEEE-488 standard cable. The pin assignments of the rear-panel IEEE-488 connector are shown in Figure C-1 IEEE-488 connection cables are available from Fluke as shown in Table C-1. See Chapter 9, “Accessories,” for ordering information.
  • Page 400 Operators Manual Serial Connectors The two 9-pin serial connectors on the rear panel of the 5520A Calibrator are used to interface with a computer, or controller, and an instrument serial port. The pin assignments of the rear-panel serial connectors are in conformance to EIA/TIA-574 standard and are shown in Figures C-1 (Host) and C-2 (UUT).
  • Page 401 Appendices RS-232/IEEE-488 Cables and Connectors 5520A NULL MODEM CABLE SERIAL 1 FROM HOST SERIAL 2 MODEM CABLE RS-232 TO UUT RLSD FE-04.EPS Figure C-4. Serial Port Connections (DB-9/DB-9)
  • Page 402 5520A Operators Manual 5520A NULL MODEM CABLE SERIAL 1 FROM HOST MODEM CABLE RS-232 SERIAL 2 TO UUT RLSD FE-05.EPS Figure C-5. Serial Port Connections (DB-9/DB-25)
  • Page 403 The following procedure creates a test program in Visual Basic that you may use to test 5520A Calibrator RS-232 Host port and RS-232 UUT port operation. This program is referenced in Chapter 4 under “Testing RS-232 (Host) Operation using Visual Basic”...
  • Page 404 5520A Operators Manual 3. Separate the Command buttons and resize the form for ease of use (below is typical). 4. From the Toolbox, double click the Communications icon , placing the icon on the Form1 screen. This custom control icon provides complete serial communications capabilities for this program.
  • Page 405 10. Click the Stop button on the Toolbar to stop the program. (Hint: Before continuing to the next step, connect the 5520A Calibrator and UUT (if applicable) and test the program in actual operation.) 11. Save the program as vb_rs232.exe by selecting the Make EXE File command from the File menu.
  • Page 406 5520A Operators Manual...
  • Page 407 Appendix E Error Messages Error Messages The following is a list of the 5520A Calibrator error messages. The error message format is shown in Table E-1. Table E-1. Error Message Format Error Number (Message Class : Description) Text characters 0 to 65535...
  • Page 408 5520A Operators Manual (DDE:FR D) Inguard not responding (recv) (DDE:FR D) Lost sync with inguard (DDE:FR ) Invalid guard xing command (DDE:FR D) Hardware relay trip occurred (DDE:FR D) Inguard got impatient (DDE:FR D) A/D fell asleep (DDE:FR D) Inguard watchdog timeout...
  • Page 409 Appendices Error Messages (DDE:FR D) Encoder unexpectedly reset (DDE: ) Internal state error (DDE: ) Invalid keyword or choice (DDE: ) Harmonic must be 1 - 50 (DDE: ) Frequency must be >= 0 (DDE: ) AC magnitude must be > 0 (DDE: ) Impedance must be >= 0 (DDE: )
  • Page 410 5520A Operators Manual (DDE: ) Can’t set output imp. now (DDE:FR ) Compensation is now OFF (DDE: ) Period must be >= 0 (DDE: ) A report is already printing (DDE: ) ScopeCal option not installed (DDE: ) Not a ScopeCal function (DDE: ) Can’t set marker shape now...
  • Page 411 Appendices Error Messages 1013 (DDE:FR ) A6 +3.3V DC fault 1014 (DDE:FR ) A6 -3.3V DC fault 1015 (DDE:FR ) A8 33V DC fault 1016 (DDE:FR ) A6 33 mV AC fault 1017 (DDE:FR ) A6 330 mV AC fault 1018 (DDE:FR ) A6 3.3V AC fault 1019 (DDE:FR )
  • Page 412 5520A Operators Manual 1062 (DDE:FR ) A5 1 Mohm reference fault 1063 (DDE:FR ) A5 2W comp open ckt fault 1064 (DDE:FR ) A5 2W comp fault 1065 (DDE:FR ) A7 Shunt amp fault (2.2A) 1066 (DDE:FR ) A7 Shunt amp fault (3.3 mA)
  • Page 413 Appendices Error Messages 1314 (EXE: R ) Parameter too long 1315 (CME: R ) Invalid device trigger 1316 (EXE: R ) Device trigger recursion 1317 (CME: R ) Serial buffer full 1318 (EXE: R ) Bad number 1319 (EXE: R ) Service command failed 1320 (CME: R ) Bad binary number...
  • Page 414 5520A Operators Manual...
  • Page 415 Index *CLS remote command, 6-11 triangle wave characteristics (typical), 1-34 *ESE remote command, 6-17 ac power *ESE? remote command, 6-17 (45 Hz to 65 Hz) specification summary, 1-22 *ESR? remote command, 6-17 setting the output, 4-28 *IDN? remote command, 6-21 AC POWER INPUT module, 3-11 *OPC command, using, 5-47 ac voltage...
  • Page 416 5520A Operators Manual setup and utility, 6-8 DPF remote command, 6-14 status, 6-9 DPF? remote command, 6-14 thermocouple (TC), 6-9 dual ac voltage, setting the output, 4-34 commands, remote dual dc voltage, setting the output, 4-32 pressure measurement, 6-7 DUTY remote command, 6-14...
  • Page 417 Index (continued) harmonics (2nd - 50th) specifications, 1-27 MORE MODES key, 3-7 IEEE-488 MULT remote command, 6-26 connector, 3-10 multiplier keys, 3-7 interface cable, 9-4 MULTIPLY key, 3-7 interface messages, 5-27 NEW REF key, 3-6 interface overview, 5-24 NEWREF remote command, 6-27 interface, description, 5-6 NORMAL terminals, 3-9 interface, setting up, 5-8...
  • Page 418 5520A Operators Manual PREV MENU key, 3-5 null-modem cables, 9-4 pulse capture, verifying (SC600), 8-31 remote control connections, 5-7 pulse response calibration, SC300 RTD connections, 4-17 option, 8-72, 8-73 RTD_TYPE remote command, 6-41 pulse response calibration, SC600 option, 8-19 RTD_TYPE? remote command, 6-41...
  • Page 419 TRIG remote command, for SC300, 8-85 standard equipment table, 2-3 TRIG remote command, SC600 option, 8-36 status TRIG? remote command, for SC300, 8-85 checking 5520A, 5-37 TRIG? remote command, SC600 option, 8-37 commands, 6-9 trigger testing, SC300 option, 8-82 register overview - figure, 5-38...
  • Page 420 5520A Operators Manual ZCOMP? remote command, 6-57 ZERO_MEAS remote command, SC600 ZERO_MEAS remote command, 6-57 option, 8-40 ZERO_MEAS? remote command, 6-58...

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