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Fluke 8808A User Manual

Fluke 8808A User Manual

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July 2007, Rev. 1, 12/09
© 2007, 2009 Fluke Corporation, All rights reserved. Specifications subject to change without notice.
All product names are trademarks of their respective companies.
Shop for Fluke products online at:
MyFlukeStore
www.
8808A

Digital Multimeter

Users Manual
1.877.766.5412
.ca
®

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Summary of Contents for Fluke 8808A

  • Page 1: Digital Multimeter

    ® 8808A Digital Multimeter Users Manual July 2007, Rev. 1, 12/09 © 2007, 2009 Fluke Corporation, All rights reserved. Specifications subject to change without notice. All product names are trademarks of their respective companies. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • 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: Table Of Contents

    AC Current ....................1-12 Frequency ...................... 1-13 Continuity ...................... 1-13 Diode Test ..................... 1-13 Preparing the Meter for Operation ............. 2-1 Introduction......................2-3 Unpacking and Inspecting the Meter ..............2-3 Contacting Fluke....................2-3 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 4 Using the List Editor ..................3-23 Using the Number Editor................3-24 Function Keys S1 – S6..................3-24 Power-Up Configuration..................3-25 Calibration ......................3-25 Operating the Meter Using the Computer Interface ......4-1 Introduction......................4-3 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 5 RS-232 Remote / Local Configurations ............4-25 RS-232 Save / Recall System Configurations ..........4-26 Sample Program Using the RS-232 Computer Interface ........4-27 Appendices A Applications ....................A-1 B 2X4 Test Leads.................... B-1 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 6 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 7 Safety and Electrical Symbols................1-6 1-3. Accessories......................1-7 2-1. Line Voltage to Fuse Rating................... 2-4 2-2. Line-Power Cord Types Available from Fluke............2-7 3-1. Front-Panel Features ....................3-4 3-2. Display Annunciators and Indicators ..............3-7 3-3. Rear-Panel Features ....................3-8 3-4.
  • Page 8 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 9 Title Page 2-1. Replacing the Line Power Fuse................2-5 2-2. Replacing the Current-Input Fuses................. 2-6 2-3. Line-Power Cord Types Available from Fluke............2-7 2-4. Bail Adjustment and Removal ................2-8 2-5. Boot Removal......................2-9 3-1. Front Panel ......................3-4 3-2.
  • Page 10 8808A Users Manual viii MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 11: Introduction And Specifications

    DC Voltage Specifications ................1-9 AC Voltage Specifications ................1-10 Resistance ......................1-11 DC Current ...................... 1-11 AC Current ...................... 1-12 Frequency ......................1-13 Continuity ......................1-13 Diode Test ....................... 1-13 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 12 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 13: Introduction

    Introduction and Specifications Introduction Introduction The Fluke 8808A Digital Multimeter (hereafter referred to as the Meter) is a 5-1/2 digit dual-display multimeter designed for bench-top, field service, and system applications. The multiple measurement functions, plus the RS-232 remote interface, make the Meter an ideal candidate for precision manual measurements and use in automated systems.

  • Page 14: About This Manual

    In addition, follow all generally accepted safety practices and procedures required when working with and around electricity. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 15 • Before measuring current, check the Meter's fuses and turn OFF power to the circuit before connecting the Meter to the circuit. • When servicing the Meter, use only specified replacement parts. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 16: Symbols

    Recycle Do not dispose of this product as Static awareness. Static discharge unsorted municipal waste. Contact can damage parts. Fluke or a qualified recycler for disposal. Measurement Category II is for Measurement Category I is for measurements performed on CAT II...

  • Page 17: Options And Accessories

    RS-232 Cable (2 m) RS43 Precision Electronic Probe Set TL910 2X4 Wire Ohms 1000 V Test Lead TL2X4W-PTII FlukeView Forms Basic Software FVF-SC5 FlukeView Forms Software Upgrade to enhanced version FVF-UG MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 18: General Specifications

    External Trigger Jitter ........<1 ms Trigger Input ............. TTL Levels Trigger Output ........... 5 V max Math Functions Min/max, relative, hold, compare and dB functions Electrical Input Protection ..........1000 V all ranges MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 19: Remote Interfaces

    200 V 0.01 + 0.002 0.015 + 0.003 0.0015 + 0.0005 1000 V 0.01 + 0.002 0.015 + 0.003 Notes: Uncertainty given as ± (% of reading + % of range) MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 20: Ac Voltage Specifications

    0.35 + 0.05 0.01 + 0.005 50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01 Notes: Uncertainty given as ± (% of reading + % of range) 1-10 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 21: Resistance

    10 μA <0.5 V 200 mA 199.999 mA 10 μA 100 μA 100 μA <0.1 V 1.99999 A 100 μA <0.5 V 10 A 10.0000 A 1 mA 1 mA 1-11 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 22: Ac Current

    1.25 + 0.12 0.015 + 0.005 45 Hz - 2 kHz 0.35 + 0.1 0.5 + 0.12 0.015 + 0.005 Notes: Uncertainty given as ± (% of reading + % of range) 1-12 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 23: Frequency

    Maximum Reading ..........199.99 Ω Resolution ............0.01 Ω Diode Test Response Time ..........100 samples/sec with audible tone Rate ..............Fast Maximum Reading ..........1.9999 V Resolution ............0.1 mV 1-13 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 24 8808A Users Manual 1-14 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 25: Preparing The Meter For Operation

    Turning Power On ..................... 2-8 Adjusting the Bail ....................2-8 Installing the Meter into an Equipment Rack ............ 2-8 Cleaning the Meter..................... 2-9 Fluke 45 Emulation.................... 2-9 Illuminating All Display Segments..............2-10 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 26 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 27: Introduction

    Fluke immediately. Save the container and packing material in case you have to return the Meter. Contacting Fluke To order accessories, receive operating assistance, or get the location of the nearest Fluke distributor or Service Center, call: USA:...

  • Page 28: Selecting The Line Voltage

    Table 2-1. Line Voltage to Fuse Rating Line Voltage Selection Fuse Rating 100 / 120 0.125 A, 250 V (slow blow) 220 / 240 0.063 A, 250 V (slow blow) MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 29: Current-Input Fuses

    If the fuse is good, the Meter displays a reading of <2 Ω. If the fuse is blown, the Meter displays 0L to indicate an overload. XW Warning To avoid electric shock, remove the power cord and any test leads from the Meter before opening the current-input fuse cover. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 30 Press the cover down until the catches engage the printed circuit board. 7. Replace the fuse access door and install the retaining screw. Fuses Bottom front left corner eue04.eps Figure 2-2. Replacing the Current-Input Fuses MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 31: Connecting To Line Power

    2. Verify that the correct fuse for the line voltage is installed. 3. Connect the power cord to a properly grounded three-prong outlet. See Figure 2- 3 for line-power cord types available from Fluke. Refer to Table 2-2 for descriptions of the line-power cords.

  • Page 32: Turning Power On

    Installing the Meter into an Equipment Rack The Meter is mountable in a standard 19-inch rack using a rack mount kit. See the “Options and Accessories” section in Chapter 1 for ordering information. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 33: Cleaning The Meter

    Do not use aromatic hydrocarbons, alcohol, chlorinated solvents, or methanol-based fluids when wiping down the Meter. Fluke 45 Emulation To switch the Meter to Fluke 45 emulation: Press and hold S and f for two seconds. MyFlukeStore 1.877.766.5412...

  • Page 34: Illuminating All Display Segments

    To illuminate all display segments, start with the Meter display off. Next, press and hold S then press P to turn on the Meter. Release the buttons when the display illuminates. To return to normal measurement mode, press S. 2-10 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 35: Operating The Meter From The Front Panel

    Using the Compare Function................. 3-22 List and Number Editors..................3-22 Using the List Editor ..................3-23 Using the Number Editor................3-24 Function Keys S1 – S6..................3-24 Power-Up Configuration..................3-25 Calibration ......................3-25 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 36 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 37: Introduction

    Use the editor to select from option lists, to enter a relative base, or to enter a high (HI) or low (LO) range for the compare mode • Configure the computer interface (RS-232) • Send measurements directly to a printer or terminal through the RS-232 interface MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 38 Activates second level operation for function buttons Locks the front panel operation during remote mode Primary operation: Selects Meter print mode Second level operation: Sets RS-232 communication parameters (baud rate, parity, echo) MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 39 Uand V increase and decrease the range for manual ranging 10 A Input terminal for 10 A ac and dc current measurement Input terminal for 200 mA ac and dc current measurement MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 40: Dual Display

    The secondary display is either in autorange, or the same range as the primary display if both displays are in the same function. eue01f.eps Figure 3-2. Display Annunciators and Indicators MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 41 Meter is in auto range mode Manual Range Meter is in manual range mode CAL Error Calibration attempt failed High voltage is detected Displays when voltage is >30 V dc or ac rms MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 42: Rear Panel

    Ranging operations are performed using R, U, and V. Press R to toggle between autorange and manual range modes. When autoranging is selected, Auto Range is displayed. When manual ranging is selected, Manual Range is displayed. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 43: Selecting A Measurement Rate

    B and E for more than two seconds. If a reading is shown on the secondary display when a function button is pressed, the secondary display turns off and that function is selected for the primary display. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 44: Measuring Voltage

    1. Connect test leads between the Meter and the circuit under test as shown in Figure 3-4. 2. Press F to measure the frequency of the ac signal. The function and measurement are displayed. 3-10 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 45: Frequency Ranging

    The function and measurement are displayed. INPUT SENSE 2W/4W 1000 V CAT I 1000V 300V 600 V CAT II 750V 500 V pk 200 mA 10 A eue11.eps Figure 3-5. 2-Wire Resistance Measurement 3-11 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 46: 4-Wire Resistance Measurement

    10 A eue12.eps Figure 3-6. 4-Wire Resistance Measurement To make a four-wire resistance measurement using Fluke’s 2X4 test leads: 1. Connect the test leads to the Meter’s input connectors as show in Figure 3-7. 2. Press N. 2*4 Wire is displayed.

  • Page 47: Measuring Current

    6. Press B to measure ac current or press E to measure dc current. 7. Apply power to the circuit under test. The Meter selects the appropriate range in autorange mode. The function and measurement are displayed. 3-13 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 48: Automatic Input Terminal Detection

    200 µA to 200 mA ranges are selectable. If the 10 A terminal has a test lead, then only the 2 A and 10 A ranges are selectable. 3-14 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 49: Diode / Continuity Testing

    0L if the input is above +2 V. INPUT SENSE 2W/4W 1000 V CAT I 1000V 300V 750V 600 V CAT II 500 V pk 200 mA 10 A eue15.eps Figure 3-10. Continuity Test 3-15 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 50: Making A Triggered Measurement

    3. Press R and hold for 2 seconds to save the selected mode. Connecting to an External Trigger The Meter provides two external trigger connection methods for different operation modes. Table 3-4 shows the layout of the TRIG/IO_RS232 connector. 3-16 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 51: Selecting A Function Modifier

    D to select dc voltage measurement, and then press I to select the Touch Hold function to hold the results of your measurement). Note that modified readings are shown on the primary display only. 3-17 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 52: Relative Readings Modifier (Rel)

    The reference impedance can be set to any of 21 reference impedances listed in Table 3-5 by using the list editor as described in the "Using the List Editor" section later in this chapter. 3-18 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 53: Touch Hold Function (Hold)

    Touch Hold selected press I for less than 2 seconds. The Meter allows you to choose the minimum response level needed for Touch Hold to capture and display a measurement. You can choose from the following four response levels: 3-19 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 54: Minimum / Maximum Modifier (Min Max)

    4. To exit MIN MAX mode, press and hold N for 2 seconds. 5. To observe the actual readings without resetting the stored values, press Q and then select the same measurement function that you selected for the primary display. 3-20 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 55: Using The Function Modifiers In Combination

    Edits compare mode high point (see the “Using the Compare Function” then section later in this manual) In relative mode, toggles display of relative base in secondary display Displays software version 3-21 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 56: Compare Function (Comp)

    If a computer interface command is received by the Meter during editing, the edit is aborted and the Meter returns to normal operation. The item being edited is not changed. 3-22 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 57: Using The List Editor

    E = Even Parity options Odd = Odd No = None Stop bit StoP Echo mode Echo Trigger mode Q then J 1, 2, 3, 4, 5 t r i 3-23 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 58: Using The Number Editor

    When a configuration is stored, it includes the following: • Measurement function and initial range on primary display • Measurement function on secondary display 3-24 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 59: Power-Up Configuration

    Minimum and maximum values in MIN MAX modifier 0 Relative base Relative base in secondary display Disabled Trigger type 1 (Internal) Trigger type Calibration Refer to the 8808A Calibration Manual for instructions on calibrating the Meter. 3-25 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 60 8808A Users Manual 3-26 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 61: Operating The Meter Using The Computer Interface

    Computer Interface Command Set..............4-15 Common Commands ..................4-16 Function Commands and Queries..............4-17 Function Modifier Commands and Queries ..........4-19 Range and Measurement Rate Commands and Queries........ 4-21 Measurement Queries ..................4-23 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 62 Trigger Configuration Commands..............4-24 Miscellaneous Commands and Queries............4-25 RS-232 Remote / Local Configurations ............4-25 RS-232 Save / Recall System Configurations ..........4-26 Sample Program Using the RS-232 Computer Interface ........4-27 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 63: Introduction

    R to set the selected Echo state. When Echo is on, each command sent to the Meter over the RS-232 interface is echoed to the host's display screen. When Echo is off, commands are not echoed. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 64: Rs-232 Print-Only Mode

    RS-232 Print-Only Mode The print-only mode is used to send measurements to a printer or terminal automatically. While the Meter will respond to remote commands during print-only operations, Fluke recommends first setting the Meter's echo mode to OFF. This prevents mixing echoed command characters and incoming data.

  • Page 65: Cabling The Meter To A Host Or Printer (Rs-232)

    Longer cables can be used if the load capacitance at the interface point (including signal terminator) is less than 2500 pf. To connect the Meter to a personal computer (with DB-9 connector), use a Fluke RS43 Null modem cable. Refer to Table 1-3.

  • Page 66: Character Echoing And Deletion

    4. Type *IDN? and press Enter. 5. Verify that the Meter sends the following response: FLUKE, 8808A, nnnnnnn, n.n Dn.n Where nnnnnnn is the Meter’s serial number; n.n is the main software version; and Dn.n is the display’s software version.

  • Page 67: If Test Fails

    • LF (Line Feed • CR LF (Carriage Return/ Line Feed) In some instances, a terminator is automatically transmitted at the end of the host’s output string (the Meter's input string). MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 68: Sending Numeric Values To The Meter

    Numeric output from the Meter is shown in the following examples: +1.2345E+0(format 1) Measured value of 1.2345 +1.2345E+6(format 1) Measured value of 1.2345M +12.345E+6 OHM(format 2) Measured value of 12.345Mohms MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 69: Triggering Output

    4 and 5. To exit remote mode, perform steps 1 and 2 and select trigger type 2 or 3 (as applicable). MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 70: Setting The Trigger Type Configuration

    To trigger a measurement using pin 9 of the RS-232 interface, see Figure 4-1. +5 V Out (Pin 1) Trig In (Pin 9) eue24.eps Figure 4-1. External Trigger Using Pin 9 of RS-232 Interface 4-10 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 71: Status Registers

    Read Command Write Command Enable Register Event Byte Register *STB? None Service Request Enable *SRE? *SRE None Register Event Status Register *ESR? None Event Status Enable *ESE? *ESE None Register 4-11 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 72: Event Status And Event Status Enable Registers

    The ESE is a mask register that allows the host to enable or disable (mask) each bit in the ESR. When a bit in the ESE is set to 1, the corresponding bit in the ESR is enabled. 4-12 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 73 & Standard Event Status Enable Register *ESE *ESE? Summary Message Event Summary Bit (ESB) (Bit 5 of Status Byte Register) aam22f.eps Figure 4-3. Event Status and Event Status Enable Registers 4-13 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 74: Status Byte Register

    Event Status (ESB) One or more of enabled events in the Event Status Register have occurred. To determine which events have occurred, send command *ERR? to read the Event Status Register. 4-14 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 75: Reading The Status Byte Register

    Commands are grouped by related function and are listed in the tables that follow. Parameters that must be supplied by the user or strings returned by the Meter are enclosed in angle brackets (for example, <value>). 4-15 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 76: Common Commands

    (1 or 0) of bits in the register. *IDN? Identification Query Meter returns the identification code of the Meter as four fields separated by commas. These fields are: Manufacturer (FLUKE); model (8808A); seven-digit serial number; and versions of main software and display software. *OPC Operation Complete...

  • Page 77: Function Commands And Queries

    (Not applicable) AC plus DC rms current ADC2 DC current (Not applicable) CLR2 Clears measurement (if shown) CONT (Not applicable) Continuity test DIODE (Not applicable) Diode test FREQ FREQ2 Frequency 4-17 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 78 AC plus dc rms volts VDC2 DC volts [1] When AACDC or VACDC is selected, no function can be selected for the secondary display. An execution error is generated if attempted. 4-18 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 79: Function Modifier Commands And Queries

    <threshold> must be 1, 2, 3, or 4 (0.01 %, 0.1 %, 1 % or 10 %, respectively). Any other value generates an Execution Error. See “Touch Hold Function (HOLD)” in Chapter 3 for more information. 4-19 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 80 Meter exits the MN MX modifier. The stored minimum and maximum values are lost, and the Meter returns to the ranging mode and range selected prior to selecting MN MX modifier. 4-20 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 81: Range And Measurement Rate Commands And Queries

    Meter returns 1 if it is in autorange or 0 if not in autorange. FIXED Meter exits autoranging on the primary display and enters manual ranging. The present range becomes the selected range. 4-21 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 82 S, M, and F can be entered as uppercase or lowercase. Any other entry for <speed> generates an Execution Error. RATE? Returns <speed> as S for slow (2.5 readings/second), M for medium (20 readings/second), or F for fast (100 readings/second). 4-22 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 83: Measurement Queries

    Example of Format 2: +1.2345E+0 VDC, +6.7890E+3 ADC<CR><LF> If the secondary display is not on, VAL is equivalent to VAL1. If a display is blank, the next triggered measurement on that display (or displays) is returned. 4-23 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 84: Compare Commands And Queries

    Select a trigger type with settling delay enabled (trigger type 3 or 5) when the input signal is not stable before a measurement is triggered. Typical settling delays are provided in Table 4-3. TRIGGER? Returns the trigger type set by the TRIGGER command. 4-24 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 85: Miscellaneous Commands And Queries

    Table 4-17 describes the RS-232 remote and local configuration commands, which are used with the RS-232 interface to set up the remote/local configuration of the Meter. These commands are valid only when the RS-232 interface is enabled. 4-25 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 86: Rs-232 Save / Recall System Configurations

    Save <position> Saves the current running working status into <position>, where <position> is 1 through 6. Call <position> Recalls the working status from <position>, where <position> is 1 through 6. 4-26 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 87: Sample Program Using The Rs-232 Computer Interface

    Figure 4-4 is an annotated BASIC A program written for a PC that demonstrates how the Meter can be used with the RS-232 computer interface. aam23f.eps Figure 4-4. Sample Program for RS-232 Computer Interface 4-27 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 88 8808A Users Manual 4-28 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 89: Appendices

    Appendices Appendix Title Page Applications ......................A-1 2X4 Test Leads ....................B-1 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 90 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 91: Using The Dual Display

    4. Press Q then F to select frequency for the secondary display. 5. Insert the test lead probes into a wall socket. The display will appear similar to Figure A-1. The actual display depends on the local power supply. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 92 This will happen, for instance, if Touch Hold (with autoranging on) is applied to a measurement function on the primary display and the same function is selected for the secondary display. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 93 • Show the minimum or maximum value recorded and the present MN MX Actual Value measurement • Show actual measurement and the difference between this value Actual Value and the relative base. MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 94 Response Times Response time is the time between a change in an input and when that change is displayed. The meter’s response time depends on many factors: the measurement MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 95 These intervals vary by measurement function, range, measurement rate (slow, medium, or fast), and measurement type (ac-and dc-type measurements mixed or not mixed). MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 96 Typical time to change to the next higher or lower range and display the result. Table A-4. Typical Settling Delays (in Seconds) Meas. Settling Delay Range Function Slow Fast 0.05 0.05 0.05 0.05 0.05 MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

  • Page 97: External Trigger

    3. Use clean connection (especially free of grease and dirt). 4. Use caution when handling the circuit under test. 5. Wait for the circuit to reach thermal equilibrium. (Thermal voltages are generated only where there is a temperature gradient.) MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 98 The zero burden voltage measurement method used in the Meter gives a more accurate measurement of low-level (leakage) currents. Feedback Internal eue29.eps Figure A-4. Zero Burden Voltage Low-Level Current Measurement MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...
  • Page 99 2X4 Test Leads Introduction The optional Fluke TL2X4W test leads simplify making 4-wire ohms measurements by integrating the Hi-Hi Sense and Lo-Lo Sense test leads into one cable. The Meter’s Input HI and LO jacks consist of two contacts. One contact is connected to HI or LO input circuits and the other contact is connected to the Sense input circuits.
  • Page 100 8808A Users Manual MyFlukeStore 1.877.766.5412 www. Shop for Fluke products online at:...

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