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Fluke Calibration 5730A Service Manual

Multifunction calibrator
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5730A
Multifunction Calibrator
Service Manual
October 2015 Rev. 1, 7/23
© 2015-2023 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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  • Page 1 5730A Multifunction Calibrator Service Manual October 2015 Rev. 1, 7/23 © 2015-2023 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or...
  • Page 3 OPERATOR SAFETY SUMMARY WARNING HIGH VOLTAGE is used in the operation of this equipment LETHAL VOLTAGE may be present on the terminals, observe all safety precautions! To prevent electrical shock hazard, the operator should not electrically contact the output HI or sense HI terminals or circuits connected to these terminals. During operation, lethal voltages of up to 1100 V ac or dc may be present on these terminals.

  • Page 5: Table Of Contents

    DC Voltage Functional Description ..........6 AC Voltage Functional Description ..........9 30 MHz Wideband AC-V Functional Description (Option 5730A/03 shipped before October 2015) ......10 30/50 MHz Wideband ACV Functional Description (Option 5730A/03 shipped after October 2015 and Option 5730A/05) ................10 DC Current Functional Description ..........
  • Page 6 5730A Service Manual Calibrate the Wideband AC Module Options 5730A/03 and 5730A/05 ....................23 Wideband Flatness Calibration Adjustment Procedure ......25 Calibration Check .................. 26 Develop a Performance History............. 26 Save Calibration Reports ..............27 Calibration Shift Results ..............27 Calibration Check Shift Results ............

  • Page 7: Introduction

    Resistance in values from 1 Ω to 100 MΩ, plus a short • Optional wideband ac voltage from 300 μV to 3.5 V into 50 Ω (-57 dBm to +24 dBm), 10 Hz to 30 MHz (5730A/03) or 50 MHz (5730A/05) Features of the Product include: •...
  • Page 8 Offset and scaling modes that simplify linearity tests of multimeters. • Variable phase reference signal output and phase-lock input. • Interface for the Fluke Calibration 5725A Amplifier. • Interface for the Fluke Calibration 52120A Amplifier. • Standard IEEE-488 (GPIB) interface, that complies with ANSI/IEEE Standards 488.1-1987 and 488.2-1987.

  • Page 9: How To Contact Fluke Calibration

    Calibrators. Included with these tables are operating specifications for use of the Calibrator with the 30 MHz Wideband AC Module (Option 5730A/03), the 50 MHz Wideband AC Module (5730A/05), and the 5725A and 52120A Amplifiers. Use of Absolute and Relative Specifications To evaluate the Product coverage of the calibration workload, use the Absolute Accuracy specifications.

  • Page 10: Use Of Secondary Performance Specifications

    5730A Service Manual Relative accuracy specifications are provided for enhanced accuracy applications. These specifications apply when range constants are adjusted (see “Range Adjustment” in Chapter 7 of the Operators Manual). To calculate absolute accuracy, combine the uncertainties of the external standards and techniques with relative accuracy.

  • Page 11: Analog Section Overview

    (GPIB, RS232, Ethernet, USB) hyv001.emf Figure 1. Digital Section Block Diagram Analog Section Overview The guarded analog section contains these assemblies: • Wideband Oscillator (A5) (Option 5730A/03 or 5730A/05) • Current/Hi-Res (A7) • Switch Matrix (A8) • Ohms Cal (A9) •...

  • Page 12: Functional Description Presented By Output Function

    5730A Service Manual • Power Amplifier (A16) • Regulator/Guard Crossing (A17) • Filter/PA Supply (A18) These analog assemblies interface to the Analog Motherboard assembly (A3). The guarded digital bus generated by the guard crossing portion of the Regulator/Guard Crossing assembly controls all analog assemblies except the Filter/PA Supply. The Guard Crossing interfaces with the unguarded CPU assembly via a fiber-optic link.
  • Page 13 Multifunction Calibrator Functional Description Presented by Output Function Figure 2. Analog Section Block Diagram, Part 1...
  • Page 14 5730A Service Manual 16.777 MHz OSC Figure 3. Analog Section Block Diagram, Part 2...

  • Page 15: Ac Voltage Functional Description

    Multifunction Calibrator Theory of Operation The 1100 V range is generated by the High Voltage/High Current assembly (A15) operating in conjunction with the Power Amplifier assembly and the High Voltage Control assembly. The 11 V range of the DAC assembly is routed to the High Voltage/High Current assembly which amplifies by a gain of -100 to create the 1100 V range.

  • Page 16: 30 Mhz Wideband Ac-V Functional Description (Option 5730A/03 Shipped Before October 2015)

    Note In October 2015, the wideband options were redesigned to output 30 MHz and 50 MHz. To see if the 5730A has a newer version wideband option installed, select the Wideband function and output 20 MHz. Calibrators with the older /03 options show "20 MHz".

  • Page 17: Ac Current Functional Description

    Multifunction Calibrator Theory of Operation All current ranges except 2.2 A are generated by the current portion of the Current/Hi-Res assembly. These currents are created by connecting the output of the DAC assembly, set to the 22 V range, to the input of the Current assembly. The Current assembly uses this dc voltage to create the output current.

  • Page 18: Product Calibration

    Fluke Calibration. The calibration verification procedure provides traceability for the ac and dc voltage, resistance, and ac and dc current functions.

  • Page 19: Calibration Reports

    Multifunction Calibrator DC Zeros Calibration Reports The Product stores two sets of calibration constants: the set currently in use and the old set from the previous calibration. This gives the Calibrator the ability at any time to produce a calibration report of the differences between the present settings and the settings that were in effect before the last calibration.

  • Page 20: Calibration Procedures

    5730A Service Manual Note If this message shows after powering on the Product, let the Product warm up before running dc zeros. Otherwise an error message indicates that the Product is not warmed up. To ensure the best performance, complete the warmup.
  • Page 21 Reference Divider Fluke 752A Optional Range Calibration Long scale DMM Fluke 8508A Optional Range Calibration Equipment Required for Wideband AC Module (Option 5730A/03 and 5730A/05) Calibration Fluke 5790A/B with Wideband AC Measurement Standard Wideband Option Wideband Cable (supplied Fluke Cable...

  • Page 22: Calibration Security Passcode

    Model 742A-1 1Ω Resistance Standard • Model 742A-10k 10Ω Resistance Standard Use 5730A-7003 (spade lugs) Low Thermal Leads for all connections: Both the Product and the recommended external standards have the ability to internally control (or compensate for) ambient temperature variations. Therefore, it is unnecessary to keep the Product in tightly-controlled temperatures during calibration.

  • Page 23: When To Adjust Product Specifications

    5440A-7002 and 5440A-7003 Low Thermal Lead sets include a third cable specifically designed for completing Artifact Calibration. The 5730A-7002 and 5730A-7003 Low Thermal Lead sets do not include the third cable for connection between reference standards. When to Adjust Product Specifications As long as the external standards have the uncertainties listed in Table 1, it is not necessary to adjust the Product absolute specifications.
  • Page 24 5730A Service Manual 5. Enter the value of the 732B 10 V output. Get the value from the report of calibration for the 732B, and preferably, from control charts that use linear regression to predict the value of the 732B at the time of use. If the entered value is not between 9 V and 11 V, an error message is shown.
  • Page 25 Multifunction Calibrator Calibration Procedures 12. Disconnect the 10 kΩ standard, and connect the Product to the 1 Ω standard. Enter the value of the 1 Ω standard using the processes described for the other standards. If the standard is not between 0.9 Ω and 1.1 Ω, an error message appears, and the user can start over from this point with another standard.

  • Page 26: Range Adjustment

    Fluke 5440 series instrument and is not specifically needed here. The 5730A-7002 and 5730A-7003 Low Thermal Lead sets do not include the third cable for connection between reference standards. Proceed as follows to adjust the 220 V dc range constant (the procedure is similar for all ranges).
  • Page 27 Multifunction Calibrator Range Adjustment 1. Touch Setup Menu>Calibration>Range Adjustment >DCV to show the Range Adjustment menu. 2. Touch 220 V and enter the nominal value. 3. Connect the 732B, 8508A, and 752B in a 10:1 configuration, as shown in Figure 6. 4.
  • Page 28 5730A Service Manual 8508A Reference Multimeter External External Sense Guard 5730A Calibrator 5730-7003 5730-7003 752A Voltage Divider Standard 732B Voltage Reference Standard INPUT NULL DETECTOR OUTPUT GND GRD REFERENCE STANDARD 732B DC STANDARD AC PWR IN CAL CHARGE LOW BAT 1.018V...

  • Page 29: Calibrate The Wideband Ac Module Options 5730A/03 And 5730A/05

    Calibrate the Wideband AC Module Options 5730A/03 and 5730A/05 The Wideband AC Module Options 5730A/03 and 5730A/05 can be installed in the Product. The module needs to be calibrated for both gain and flatness. The gain should be calibrated when the 5730A main output functions undergo their routine calibration.
  • Page 30 5730A Service Manual 3. Touch Run Wb Gain Cal to begin calibration. The Product prompts to refer to the manual for the correct connections. As the wideband calibration proceeds, messages are shown on the display that identify all processes as they are encountered. When positive gains calibration is complete, a message is shown to refer to the manual for negative gains connections.

  • Page 31: Wideband Flatness Calibration Adjustment Procedure

    Multifunction Calibrator Wideband Flatness Calibration Adjustment Procedure Wideband Flatness Calibration Adjustment Procedure Do the calibration procedure and the full calibration verification of the Product every 2 years. For flatness calibration adjustment: 1. Touch Setup Menu>Calibration. If the ambient temperature has changed from the displayed value, update it.

  • Page 32: Calibration Check

    Save Calibration Reports. Develop a Performance History A Fluke Calibration specification is a set of performance limits that all products must meet. To maintain consistent quality, the calibrators are specified with enough margin to include temperature, line, and load extremes, plus additional margin for production.

  • Page 33: Save Calibration Reports

    • Current output shifts for each range (ac and dc) • Resistance shifts for each value • 5725A Amplifier output shifts (if attached) • Wideband AC Module (Options 5730A/03 and 5730A/05) output shifts (if installed)

  • Page 34: Calibration Check Shift Results

    5725A Boost Amplifier output shifts (if attached). The calibration report file name is CKyymmdd.CSV, where yymmdd is the date today. Raw Data Results This report gives the values for the internally stored correction factors (calibration constants), and is useful primarily for Fluke Calibration service centers.

  • Page 35: Full Verification

    4 days of power-on stabilization. 2. If a regularly scheduled full verification as recommended by Fluke Calibration is being done, calibrate the Product as described in the Calibration Procedure section before you continue with verification.

  • Page 36: Determine Specification Limits For Other Calibration Intervals

    Digital Multimeter Fluke 8508A Ohms, DCI, ACV, and DCV Low Thermal Cables 5730A-7003 Various Equipment Required for Wideband AC Module ( Options 5730A/03 and 5730A/05) Verification Fluke 5790B with Wideband AC Measurement Standard Wideband Option Wideband Cable (supplied Fluke Cable...

  • Page 37: Applying Guardbands To Specification Limits

    These must be accounted for their individual situations, so it is not possible for Fluke Calibration to estimate uncertainty for all user calibrations.
  • Page 38 5730A Service Manual 3. The Product cannot be determined as meeting specifications unless the measurement at the test point is less than the value of the specification minus the expanded uncertainty. To comply with these decision rules, it can be necessary to establish a guardband for each test point.
  • Page 39 ILAC G8 method. The RDS method is used widely at Fluke Calibration and many other companies as a reasonable approach to ensuring confidence that the verified Product meets its published specifications.

  • Page 40: Resistance Verification Test

    Ω Verify 0 , and 1.9 1. Connect the DMM to the Product as shown in Figure 10 using the 5730A- 7003 cables. 2. Set the 8508A to Resistance, True Ohms, 2 Ω range, 6 digits, normal current, internal guard, 4 wire, and "Slow".

  • Page 41: Verify 10 Ω Through 19 Mω

    4. Connect the DMM to the first or next resistance standard (742A) given in Table 5 using the 5730A-7003 cables as shown in Figure 11. 5. Enter the resistance value of the 742A Standard in Table 5 under the 742A STD Ohms Value.
  • Page 42 5730A Service Manual 9. Set the Product to output the first resistance used with that standard as given in Table 5. Record the shown value in Table 5 under the Product Displayed Value. Set the Product to 4-wire Sense On for the measurements that have the DMM set to 4 wire and 4-wire Sense Off for the 2 wire measurements.
  • Page 43 Multifunction Calibrator Full Verification Table 5. 10 Ω through 19 MΩ Verification 742A STD Product Calculated Product 742A STD Product 2W/4W 742A Ohms Ohms Calculated Value Minus Limits Setting Range Ohms DMM Displayed Ω Connection STD Used Value Value Displayed Ohms Ohms Reading...

  • Page 44: Verify 100 Mω

    5730A Service Manual Ω Verify 100 M 1. Verification of 100 MΩ requires a special cable be built that has banana plugs on both ends and is 100 % shielded, including over the banana plugs. Use a twisted pair, shielded cable made with Teflon insulation over the twisted wires.

  • Page 45: Dc Zero Test

    Full Verification DC Zero Test 1. Short one end of a 5730A-7003 cable. This can be done by connecting both spade lugs to a binding post but do not use the binding post on an instrument that is powered, such as the Product, but instead use the 752A or a 742A.

  • Page 46: Self-Calibrate A Fluke 752A Divider With A Fluke 8508A As The Null Detector

    5730A Service Manual Table 7. DC Zero Volt Verification Product Range Product Setting DMM Reading Limits ±0.5 μV 220 mV 0 mV -.010 μV ±0.5 μV 2.2 V ±0.8 μV -.1 μV ±0.8 μV ±3 μV 11 V -1 μV ±3 μV...
  • Page 47 Multifunction Calibrator Full Verification 15. If the readings in step 14 are not the same then adjust the BALANCE control until they are the same (see note 4 below). 16. Set the CALIBRATE switch to 100:1+. Adjust the 100:1 CALIBRATE adjustment until the reading is 0±0.5 μV.
  • Page 48 5730A Service Manual 5. Using a DMM does take longer and more care to self- calibrate a 752A then using a Fluke 845 but it can still be done in a reasonable amount of time once the user gets used to the new technique.
  • Page 49 Multifunction Calibrator Full Verification hhp305.emf Figure 12. Zero Null Detector Connection...

  • Page 50: Dc Voltage Test At Decade Values

    5730A Service Manual DC Voltage Test at Decade Values 1. Self-Calibrate the reference divider according to the procedure for using the 8508A as the null detector in the “Self-Calibrate a Fluke 752A Divider with a Fluke 8508A as the Null Detector” section above.
  • Page 51 Multifunction Calibrator Full Verification Table 8. DC Voltage Test at Decade Values Verification 10 V Calculated Divider Product Product Reading Equation Measured Limits Setting Range Output Polarity (Vdmm) Voltage ±1.2 μV 220 mV 100 mV − − ±1.2 μV 220 mV -100 mV −...
  • Page 52 5730A Service Manual hhp301.emf Figure 13. Zero Null Detector Connections...
  • Page 53 Multifunction Calibrator Full Verification 8508A Reference Multimeter External External Sense Guard 5730A Calibrator 5730-7003 5730-7003 752A Voltage Divider Standard 732B Voltage Reference Standard INPUT NULL OUTPUT GND GRD DETECTOR REFERENCE STANDARD 732B DC STANDARD AC PWR IN CAL CHARGE LOW BAT 1.018V...

  • Page 54: Dc Voltage Test At 19 Volts

    5730A Service Manual DC Voltage Test at 19 Volts 1. For this test, connect the 10 V standard to the 8508A as shown in Figure 15. 2. Record the value of the 10 V standard in Table 10. Record it as a negative voltage for the -19 V test.
  • Page 55 Multifunction Calibrator Full Verification 732B DC Standard 8508A Reference Multimeter 732B DC STANDARD AC PWR IN CAL CHARGE LOW BAT 1.018V CHASSIS 10V COM 1.018V COM GUARD SERIAL NUMBER 5730A 8508A Reference Multimeter hhp304.emf Figure 15. 19 V DC Verification Connections...

  • Page 56: Direct Current Verification Test

    Fluke 742A-1k Fluke 742A-10k Low Thermal EMF Cables Fluke 5730A-7003 1. Connect the DMM and the Product to the shunt given in Table 12, as shown in Figure 16. When testing a 5725A, connect to the 5725A current output terminals instead of the Product output.
  • Page 57 Multifunction Calibrator Full Verification 742A Resistance Standard hhp307.emf Figure 16. Direct Current Accuracy Test Connections...
  • Page 58 5730A Service Manual Table 11. DC Current Accuracy Verification Shunt Calculated Product Product Voltage Shunt Value Current Limits Output Range Range Reading (Ohms) (Amps) (Volts) 0 μA 220 μA ±7 nA 200 mV 10 kΩ 10 μA 220 μA ±7.4 nA 200 mV 10 kΩ...

  • Page 59: Ac Voltage Frequency Accuracy Test

    Multifunction Calibrator Full Verification AC Voltage Frequency Accuracy Test This test requires the use of a frequency counter. Tektronix model FCA3000 or equivalent is recommended. Use Table 13 for the test record. With some counters it may be necessary to use a 1 MHz low pass filter as shown in Figure 17.

  • Page 60: Ac Voltage Verification Test

    3. Refer to Table 15 and output .600000 mV @1 kHz and record the reading under Measured Value. 4. Test the remaining amplitudes and frequencies in Table 15. 5. Verify that the measured values are within the limits given in the Table 15. 5730A Calibrator 5790A/B Measurement Standard AC MEASUREMENT 5790A...
  • Page 61 Multifunction Calibrator Full Verification Table 14. 5790B Adjustment Counts Product Range Nominal Value Measured Value Limits ±5.0 μV 2.2 mV .600 000 mV, 1 kHz ±5.6 μV 2.2 mV 2.000 000 mV, 10 Hz ±5.2 μV 2.2 mV 2.000 000 mV, 20 Hz ±5.2 μV 2.2 mV 2.000 000 mV, 40 Hz...
  • Page 62 5730A Service Manual Table 15. 5790B Adjustment Counts (cont.) Product Range Nominal Value Measured Value Limits ±33 μV 2.2 V .500 000 V, 40 Hz ±33 μV 2.2 V .500 000 V, 1 kHz ±33 μV 2.2 V .500 000 V, 20 kHz ±88.5 μV...
  • Page 63 Multifunction Calibrator Full Verification Table 15. 5790B Adjustment Counts (cont.) Product Range Nominal Value Measured Value Limits ±24.5 mV 22 V 20.000 00 V, 500 kHz ±36 mV 22 V 20.000 00 V, 1 MHz ±59 mV 220 V 200.000 0 V, 10 Hz 220 V 200.000 0 V, 20 Hz ±22 mV...

  • Page 64: Alternating Current Verification Test

    5730A Service Manual Alternating Current Verification Test This test checks the alternating current function by passing the current through a shunt and measuring the voltage drop with an ac voltmeter. Use Table 16 and Table 17 for the test record. Table 16 shows the required equipment.

  • Page 65: Ma To 2 A Ranges

    See the equation in Table 16. Verify that the results are within the given limits. 6. Repeat steps 2 through 5 for all the test points. 7. Push S when the measurements are complete. 5730A 5790A/B A40B-Lead/N A40B Current Shunt...

  • Page 66: Μa Range

    5730A Service Manual μ A Range Note Ω This test requires a 1000 shunt that has been calibrated with the 5790B. It will be used with the levels and frequencies given in Table 17. This shunt can be built from a non-inductive resistor such as a metal film resistor housed in a box with dual banana jacks on one end and banana plugs on the other end (Pomona 2259, 2098 or 2224).
  • Page 67 Multifunction Calibrator Full Verification Table 16. AC Current 2 mA to 2 A Verification A40B AC 5790B Calculated Product A40B 5790B Frequency Resistance Reading Current Limits Applied Shunt Range (Ohms) (Volts) (Amps) 2 mA 10 Hz 10 mA 220 mV 610 nA 2 mA 20 Hz...
  • Page 68 5730A Service Manual Table 17. AC Current 2 mA to 2 A Verification (cont.) 5725A 40 Hz 700 mV 1.37 mA 1 kHz 700 mV 1.37 mA 5 kHz 700 mV 2.93 mA 10 kHz 700 mV 10.65 mA 10 A...
  • Page 69 Multifunction Calibrator Full Verification Table 17. AC Current 200 μA Accuracy Test Record 5790B Shunt 5790B Measured Product Output or AUX 5790B Frequency Reading Current Limits Applied Current Range Correction (Volts) (Amps) (ppm) 20 μA 1 kHz Output 22 mV 12.34 nA 20 μA 10 kHz...

  • Page 70: Wideband Frequency Accuracy Test

    Verify that the frequency counter indicates frequencies within the 0.01 % limits shown. Wideband AC Voltage Module Output Verification The wideband tests are for units with the Option 5730A/03 and 5730A/05 Wideband AC Module only. The verification test for the wideband module works as follows: •...

  • Page 71: Wideband Output Accuracy At 1 Khz Test

    This test verifies the Wideband output level at 1 kHz by direct measurement with the 5790A/B at INPUT 2 (alternatively INPUT 1 can be used). Use Table 22 for a test record. 1. Connect the equipment as shown in Figure 21. BNC(F) to Banana Adapter 5730A 5790A/B Wideband Output Cable Wideband...

  • Page 72: Wideband Output Flatness Test

    5730A Service Manual Table 19. Wideband Adjustment Tolerance 5790B Adjustment Counts ±ppm 5730A Wideband Output 2.10000 V 1.00000 V 300.000 mV 100.000 mV 30.0000 mV 10.0000 mV 3.00000 mV 1000.00 μV Wideband Output Flatness Test Use Table 23 as a test record. To perform wideband output flatness test, proceed as follows: 1.
  • Page 73 Multifunction Calibrator Wideband Output Flatness Test 7. Record the 1 kHz absolute errors at each output level from Table 22 into the appropriate column in Table 24. Record the flatness errors from Table 23 for each output level and frequency into the appropriate column in Table 24. Add the errors and verify that they are within spec for the appropriate time internal.
  • Page 74 5730A Service Manual Table 22. Wideband Flatness Test Record Output Measured Flatness Frequency Test Limit (90-day) Level Error (V) 10 Hz 2.991 V to 3.009 V 30 Hz 2.997 V to 3.003 V 50 Hz 2.997 V to 3.003 V 105 Hz 2.997 V to 3.003 V...
  • Page 75 Multifunction Calibrator Wideband Output Flatness Test Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Frequency Test Limit (90-day) Level Error (V) 10 Hz 1.994 V to 2.006 V 30 Hz 1.998 V to 2.002 V 50 Hz 1.998 V to 2.002 V 105 Hz 1.998 V to 2.002 V 500 Hz...
  • Page 76 5730A Service Manual Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Frequency Test Limit (90-day) Level Error (V) 10 Hz 1.106670 V to 1.113330 V 30 Hz 1.108890 V to 1.111110 V 50 Hz 1.108890 V to 1.111110 V 105 Hz 1.108890 V to 1.111110 V...
  • Page 77 Multifunction Calibrator Wideband Output Flatness Test Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Frequency Test Limit (90-day) Level Error (V) 10 Hz 0.997 V to 1.003 V 30 Hz 0.999 V to 1.001 V 50 Hz 0.999 V to 1.001 V 105 Hz 0.999 V to 1.001 V 500 Hz...
  • Page 78 5730A Service Manual Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Error Frequency Test Limit (90-day) Level 10 Hz 299.100 mV to 300.900 mV 30 Hz 299.700 mV to 300.300 mV 50 Hz 299.700 mV to 300.300 mV 105 Hz 299.700 mV to 300.300 mV...
  • Page 79 Multifunction Calibrator Wideband Output Flatness Test Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Error Frequency Test Limit (90-day) Level 10 Hz 99.700 mV to 100.300 mV 30 Hz 99.900 mV to 100.100 mV 50 Hz 99.900 mV to 100.100 mV 105 Hz 99.900 mV to 100.100 mV 500 Hz...
  • Page 80 5730A Service Manual Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Error Frequency Test Limit (90-day) Level 10 Hz 29.910 mV to 30.090 mV 30 Hz 29.970 mV to 30.030 mV 50 Hz 29.970 mV to 30.030 mV 105 Hz 29.970 mV to 30.030 mV...
  • Page 81 Multifunction Calibrator Wideband Output Flatness Test Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Error Frequency Test Limit (90-day) Level 10 Hz 9.970 mV to 10.030 mV 30 Hz 9.990 mV to 10.010 mV 50 Hz 9.990 mV to 10.010 mV 105 Hz 9.990 mV to 10.010 mV 500 Hz...
  • Page 82 5730A Service Manual Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Error Frequency Test Limit (90-day) Level 2991 μV to 3009 μV 10 Hz 2997 μV to 3003 μV 30 Hz 2997 μV to 3003 μV 50 Hz 2997 μV to 3003 μV...
  • Page 83 Multifunction Calibrator Wideband Output Flatness Test Table 23. Wideband Flatness Test Record (cont.) Output Measured Flatness Error Frequency Test Limit (90-day) Level 10 Hz 997 μV to 1003 μV 30 Hz 999 μV to 1001 μV 999 μV to 1001 μV 50 Hz 999 μV to 1001 μV 105 Hz...

  • Page 84: Maintenance

    5730A Service Manual Maintenance Because this is a high-performance instrument, Fluke Calibration does not recommend t that the board be repaired to the component level. It is easy to introduce a subtle long-term stability problem by handling the boards. Access procedures are provided for those who want to replace a faulty module.
  • Page 85 Multifunction Calibrator Maintenance Table 23. Replacement Fuses Line Voltage Setting Fuse Description Fluke Part Number W 100 V to 120 V T 3 A 250 V 109280 W 220 V to 240 V T 1.5 A 250 V 109231 hhp003.emf Figure 23.

  • Page 86: Clean The Air Filter

    5730A Service Manual Clean the Air Filter WCaution Damage caused by overheating can occur if the area around the fan is restricted, the intake air is too warm, or the air filter becomes clogged. To prevent Product damage, make sure that the filter is completely dry before reinstallation.

  • Page 87: Access Procedures

    Multifunction Calibrator Access Procedures Access Procedures XWWarning To prevent possible electrical shock, fire, or personal injury, have an approved technician repair the Product. Top and Bottom Covers Make sure that power is not connected to the Product. The rear-panel power switch must be off, and the mains power cable must be disconnected.

  • Page 88: Rear Panel Assembly Access

    5730A Service Manual Rear Panel Assembly Access 1. Carefully pull the rear panel housing from the Rear Panel. 2. Remove the two ribbon cables from the Rear Panel board. 3. Remove the two nuts at TB1 and TB2 on the paddle board.

  • Page 89: Display Assembly Removal And Installation

    Multifunction Calibrator Access Procedures Display Assembly Removal and Installation Once the Front Panel has been removed, use the following procedure to access the Display assembly. 1. Disconnect the white cable at both ends. 2. Remove the two screws from the small display controller board and put the assembly aside.

  • Page 90: Analog Assembly Removal And Installation

    5730A Service Manual Analog Assembly Removal and Installation The analog assemblies are installed as shown in Figure 27. Note that each module cannot be positioned in any other slot and that the identifying information on the tab for each module faces forward. In most cases, the component side of each module also faces forward.
  • Page 91 Multifunction Calibrator Access Procedures A21 REAR PANEL PCA A18 FILTER/PA SUPPLY PCA A17 REGULATOR/GUARD CROSSING PCA A16 POWER AMPLIFIER PCA A15 HIGH VOLTAGE/HIGH CURRENT PCA (COMPONENTS FACE REAR) A14 HIGH VOLTAGE CONTROL PCA A13 OSCILLATOR OUTPUT PCA A12 OSCILLATOR CONTROL PCA A11 DAC PCA A10 OHMS MAIN PCA (COMPONENTS...

  • Page 92: Digital Assembly Removal And Installation

    5730A Service Manual WCaution Do not touch any circuit area on an analog assembly. Contamination from skin oil can produce high-resistance paths, with resulting leakage currents and possible erroneous readings. Always grasp an analog assembly by its upper corner ears.

  • Page 93: Replacement Parts

    Multifunction Calibrator Replacement Parts Replacement Parts Table 24 lists the part numbers of each replacement part or accessory for the Product, see Figure 28. Table 24. Replacement Parts Fluke Reference Description Stock Designator Number FRONT PANEL PCA 4561068 ANALOG MOTHERBOARD PCA 761023 DIGITAL MOTHERBOARD PCA 4561079...
  • Page 94 5730A Service Manual Fluke Reference Description Stock Designator Number LCD MOUNT 4303920 MP10 ANALOG TOP COVER 4104390 MP11 SHIELD, DAC-ADC AMP 775353 MP12 INSULATOR, ANALOG BOTTOM 775361 MP13 DIGITAL COVER 4104408 MP14 RIVETED CHASSIS ASSY 4104424 MP15 SHIELD, HIGH VOLTAGE, REAR...
  • Page 95 Multifunction Calibrator Replacement Parts Fluke Reference Description Stock Designator Number MP36 DECAL, USB 4219557 MP37 DECAL, MODEL 5730A 4219569 109280 WFUSE,.25X1.25,3A,250V,SLOW WPOWER ENTRY MODULE,6A,250V,FILTER,FUSE,DPST 4355075 SWITCH,FLANGE MT,.187TABS,SHIELDED FILTER,LINE,3A/250V,CHASSIS MOUNT,.250 SPADE 4221500 MP38 TERMINALS,64X34MM MP39 BINDING POST, STUD, PLATED 102707 WASHER,LOCK,INTRNL,STL,.267ID...
  • Page 96 5730A Service Manual Fluke Reference Description Stock Designator Number SCREW,PH,P,LOCK,SS,6-32,.500 320051 SCREW,PH,P,LOCK,SS,6-32,.750 376822 SCREW,6-32 X 0.25,FLAT HD UNDERCUT,PHILLIPS,HEAT 320093 TREATED,MAGNETIC SS,NYLON PATCH WASHER, LOW THERMAL #8 859939 CABLE, FRONT/REAR 802835 CABLE, BOOST 802744 JUMPER LINK,BINDING POST 190728 TRANSFORMER,POWER,HIGH 775288 VOLTAGE,110/220VAC,50/60HZ,1:0.07:5.2:5.2,5700A- 6530,UI75 WASHER,FLAT,STL,.149,.375,.031...
  • Page 97 Multifunction Calibrator Replacement Parts Fluke Reference Description Stock Designator Number CABLE, WIDEBAND TO FRONT PANEL -5730A 4382328 MP48 FOOT 868786 MP51 DECAL, NON USB 4376947 MP52 DECAL, 5730A/S 4388519...
  • Page 98 5730A Service Manual hhp311_1.emf Figure 28. Replacement Parts...
  • Page 99 Multifunction Calibrator Replacement Parts hhp311_2.emf Figure 29. Replacement Parts (cont.)
  • Page 100 5730A Service Manual A2 Shield Removed from this view MP34 Controller Board hyv311_6.emf Figure 29. Replacement Parts (cont.)
  • Page 101 Multifunction Calibrator Replacement Parts Output Terminal Wiring Sandwich each ring lug with washer Dress shield as shown, use cable tie. as shown in detail Black Wire Yellow Wire Black Wire V-GUARD AUX CURRENT V-GUARD Violet wire, Brown Gray wire, Blue Violet wire, Brown shield shield, Green shield...
  • Page 102 5730A Service Manual hhp311_3.emf Figure 29. Replacement Parts (cont.)
  • Page 103 Multifunction Calibrator Replacement Parts MP12 MP19 MP40 MP44 (2x) MP43 (2x) hhp311_4.emf Figure 29. Replacement Parts (cont.)
  • Page 104 5730A Service Manual MP10 MP13 MP41 MP14 hhp311_5.emf Figure 29. Replacement Parts (cont.)

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