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Fluke 71 Series Calibration Manual

Process calibrators
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71X Series
Process Calibrators
Calibration Manual
PN 686540
January 1998 Rev. 10, 5/09
© 1998-2009 Fluke Corporation, All rights reserved. Printed in U.S.A. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke 71 Series

  • Page 1 ® 71X Series Process Calibrators Calibration Manual PN 686540 January 1998 Rev. 10, 5/09 © 1998-2009 Fluke Corporation, All rights reserved. Printed in U.S.A. Specifications are subject to change without notice. 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 if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price.

  • Page 3: Table Of Contents

    Table of Contents Title Page Introduction......................1 How to Contact Fluke ..................1 Precautions and Safety Information..............2 Explanation of International Symbols ............... 5 Specifications..................... 6 712 Specifications ..................7 Firmware V1.1 and Earlier................ 7 Firmware V1.2 through V1.9 ..............8 Firmware V2.0 and Later ................
  • Page 4 71X Series Calibration Manual Thermocouple Source Verification ............31 Keypad Test ....................32 Display Verification .................. 32 714 Verification (V2.0 and Later) ..............32 Thermocouple Measure Verification ............32 Thermocouple Source Verification ............33 715 Verification (Earlier than V2.0).............. 34 DC Voltage Source Verification ...............
  • Page 5 (continued) Contents mV INPUT ....................55 CJC......................55 715 Calibration (Earlier than V2.0)............... 55 mA/Volts Measure ..................55 mA/Volts Source Measure ................ 56 715 Calibration (V2.0 and Later) ..............57 V INPUT ....................57 mV INPUT ....................57 mA INPUT ....................58 V OUTPUT ....................
  • Page 6 71X Series Calibration Manual...
  • Page 7 List of Tables Table Title Page International Symbols .................... 5 General Specifications.................... 6 712 Supported RTD Types..................7 712 RTD and Ohms Simulation ................7 712 RTD and Ohms Measurement................. 8 RTD Specifications ....................8 Ohms Specifications....................9 RTD Specifications ....................9 Ohms Measurement Specifications ................
  • Page 8 71X Series Calibration Manual 712 Verification RTD Values ................28 712 Verification Resistance Values ............... 28 712 Verification Outputs..................29 712 Verification RTD Values ................29 712 Verification Resistance Values ............... 30 712 Verification Outputs..................30 714 Thermocouple Measure Verification............... 30 714 Thermocouple Measure Verification (mA) .............
  • Page 9 List of Figures Figure Title Page Proper Use of Tools (717, 718, and 718Ex Models)..........4 Replacing the Battery ..................... 20 Replacing the Battery (718 and 719 only) ............. 21 718Ex Battery Replacement................... 21 Replacing the Fuses (715 shown)................23 Replacing the Fuse (718 shown) ................
  • Page 10 71X Series Calibration Manual...

  • Page 11: Introduction

    Verification test procedures • Calibration and calibration adjustment procedures • Accessories and replaceable parts How to Contact Fluke To contact Fluke, call one of the following telephone numbers: • Technical Support USA: 1-800-44-FLUKE (1-800-443-5853) • Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853) •...

  • Page 12: Precautions And Safety Information

    XW Warning To avoid possible electric shock or personal injury: • Use the 718Ex Calibrator only as described in the User Manual and the Fluke 718Ex CCD (Concept Control Drawing) or the protection provided by the calibrator may be impaired. •...
  • Page 13 Process Calibrators Precautions and Safety Information • Remove test leads from the Calibrator before opening the battery door. • When servicing the Calibrator, use only specified replacement parts. • Do not allow water inside the case. • When using the Calibrator’s internal pressure sensor, do not connect a pressure module at the Calibrator to avoid misleading readings.
  • Page 14 (Buna -N) type 303 stainless steel, and nickel. • 718, 719 and 718Ex only: To avoid damage to the pump, use with dry air and non-corrosive gases only. Use of the optional Fluke 700-ILF In-Line Filter may help isolate the pump from contaminates. Hold in fixed position kf01f.eps...

  • Page 15: Explanation Of International Symbols

    Double insulated Conforms to relevant Canadian and US Standards. Pressure Conforms to European Union directives Conforms to ATEX requirements. Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. Conforms to relevant Australian standards.

  • Page 16: Specifications

    71X Series Calibration Manual Specifications Specifications for the 71X Calibrators are based on a one-year calibration cycle and apply for ambient temperatures from + 18 °C to + 28 °C unless stated otherwise. “Counts” are the number of increments or decrements of the least significant digit. General specifications for all models are in Table 2.

  • Page 17: Firmware V1.1 And Earlier

    Process Calibrators Specifications 712 Specifications 712 Calibrator specifications vary based on the version of the instrument. To display the firmware version for your instrument, start with the 712 off, press and hold {, then press the power button. Find the section heading below for the displayed version and use the specification tables in that section to test and calibrate the instrument.

  • Page 18: Firmware V1.2 Through V1.9

    71X Series Calibration Manual Table 5. 712 RTD and Ohms Measurement Accuracy, Four-Wire ± Ω Ohms Range 15 Ω to 400 Ω 400 Ω to 1.5 kΩ 1.5 kΩ to 3.2 kΩ Maximum input voltage: 30 V Excitation current from 712: 0.3 mA Firmware V1.2 through V1.9 Table 6.

  • Page 19: 712 Specifications

    Process Calibrators Specifications Table 7. Ohms Specifications Input Accuracy Output Ohms Range Allowable Excitation (mA) 4-Wire Accuracy ± Ω ± Ω 0 Ω to 400 Ω 0.15 0.1 to 0.5 0.5 to 3.0 400 Ω to 1.5 kΩ 0.05 to 0.8 1.5 kΩ...
  • Page 20 71X Series Calibration Manual Table 8. RTD Specifications (cont.) Accuracy (˚C) * Allowable Range ˚C Input Type Excitation (mA) Source 4-Wire 2-Wire & 3-Wire Pt 1000 385 -200.0 to 100.0 0.20 0.25 0.05 to 0.4 100.0 to 300.0 0.30 0.40 300.0 to 630.0 0.40 0.52...

  • Page 21: 714 Specifications

    Process Calibrators Specifications Temperature Coefficient 0.005 % of ohms range per °C for temperature ranges –10 °C to 18 °C and 28 °C to 55 °C. Ohms ranges are 400 Ω, 1.5 kΩ, and 4.0 kΩ. 714 Specifications 714 Calibrator specifications vary based on the version of the instrument. To display the firmware version for your instrument, start with the 714 off, press and hold {, then press the power button.
  • Page 22 71X Series Calibration Manual Firmware V2.0 and Later Table 13. 714 Temperature Measure and Thermocouple Simulate TC Type Range °C Accuracy °C * -210.0 to 0.0 0.0 to 800.0 800.0 to 1200.0 -200.0 to 0.0 0.0 to 1000.0 1000.0 to 1372.0 -250.0 to 0.0 0.0 to 400.0 -250.0 to -100.0...

  • Page 23: Firmware Earlier Than V2.0

    Process Calibrators Specifications 715 Specifications 715 Calibrator specifications vary based on the version of the instrument. To display the firmware version for your instrument, start with the 715 off, press and hold {, then press the power button. Find the section heading below for the displayed version and use the specification tables in that section to test and calibrate the instrument.

  • Page 24: Firmware V2.0 And Later

    71X Series Calibration Manual Firmware 2.0 and Later Table 17. 715 DC V Input and Output Accuracy, Range Resolution ± (% of Reading + Counts) 200 mV 0.01 mV 0.015 % + 2 20 V output 0.001 V 0.01 % + 2 25 V input Input impedance: 1 MΩ...
  • Page 25 Process Calibrators Specifications 717 Specifications Accuracy is specified for 1 year after calibration at operating temperatures of -10 °C to + 55 °C. To display firmware version, start with the unit off and press and hold M, then press O. Pressure Table 19.
  • Page 26 71X Series Calibration Manual Table 22. 717 Range and Resolution 1000 1500 3000 5000 Range -1 to 1 -12 to 30 -12 to -12 to 0 to 500 0 to 0 to 0 to 0 to 1000 1500 3000 5000 1.0000 30.000 100.00...

  • Page 27: 717 Specifications

    Process Calibrators Specifications 718 and 718Ex Specifications Accuracy is specified for 1 year after calibration at operating temperatures of -10 °C to + 55 °C. To display firmware version, start with the unit off, press and hold M, then press O. Table 23.
  • Page 28 71X Series Calibration Manual Table 26. 718 Range and Resolution Range -1 to 1 -12 to 30 -12 to 100 -12 to 300 1.0000 30.000 100.00 300.00 0.0689 2.0684 6.8947 20.684 mbar 68.948 2068.4 6894.8 20684 6.8948 206.84 689.48 2068.4 kg/cm2 0.0703 2.1092...

  • Page 29: 719 Specifications

    Process Calibrators Specifications 719 Specifications Specifications are based on a one year calibration cycle and apply for ambient temperature from +18 °C to +28 °C unless stated otherwise. Counts are the number of increments or decrements of the least significant digit. Table 27.
  • Page 30 A Message From Fluke Corporation Some semiconductors and custom IC's can be damaged by electrostatic discharge during handling. This notice explains how you can minimize the chances of destroying such devices 1. Knowing that there is a problem.
  • Page 31 8. WHEN REMOVING PLUG-IN ASSEMBLIES 5. USE STATIC SHIELDING CONTAINERS FOR HANDLE ONLY BY NON-CONDUCTIVE HANDLING AND TRANSPORT. EDGES AND NEVER TOUCH OPEN EDGE CONNECTOR EXCEPT AT STATIC-FREE WORK STATION. PLACING SHORTING STRIPS ON EDGE CONNECTOR HELPS PROTECT INSTALLED S.S. DEVICES. 6.

  • Page 32: Basic Maintenance

    71X Series Calibration Manual Basic Maintenance For maintenance procedures not described in this manual, contact an authorized service center. Cleaning Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Replacing the Battery XWWarning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the...
  • Page 33 Process Calibrators Basic Maintenance Wh008f.eps Figure 3. Replacing the Battery (718 and 719 only) Hex Head Wrench wh009f.eps Figure 4. 718Ex Battery Replacement...

  • Page 34: 718Ex Approved Batteries

    V input mode, the calibrator always displays OL, even with a signal applied that is within the measurement range. 715 ≥V2.0 Fuseless overvoltage protection. 718Ex No user serviceable fuse. An open fuse voids safety certification. The unit should be returned to Fluke for repair.
  • Page 35 Process Calibrators Basic Maintenance Replace the fuse(s) as follows, refer to Figures 5 and 6: 1. Remove the test leads and turn the calibrator off. 2. Remove the battery door. 3. Remove the three Phillips-head screws from the case bottom and turn the case over. 4.

  • Page 36: Required Equipment

    Table 33. Required Calibration Equipment Calibrator Recommended Equipment Minimum Specifications Model Model 5 to 3000 Ω DC Calibrator Fluke 5520A Accuracy: 70 ppm + 0.025 Ω 5 to 3000 Ω Reference Multimeter Fluke 8508A Accuracy: 70 ppm + 0.037 Ω Four Test Leads 5500A/LEADS...
  • Page 37 Calibrator Recommended Equipment Minimum Specifications Model Model DC Calibrator -10 to 75 mV Fluke 5520A Accuracy: 0.006 % + 0.25 mV -10 to 75 mV Fluke 8508A Reference Accuracy: 0.006 % + 0.25 mV Multimeter TC to Banana Test Copper Mini-Jack to Copper Wire...

  • Page 38: Verification

    [4W NC]). All four input jacks of the 712 should now be configured in a 4-wire ohms measurement. 3. Set the Fluke 5520A to the settings in Table 34, and verify the reading as displayed on the 712 Calibrator: Table 34.

  • Page 39: Resistance Source Verification

    4. Disconnect the test leads. Resistance Source Verification 1. Using four test leads, connect the four jacks of Fluke 8508A (Ω Sense 'Hi & Lo' and Input 'Hi & Lo') to the two middle jacks of the 712 Calibrator (black to black; red to red).

  • Page 40: 712 Verification (V1.2 Through V1.9)

    11. Make 2-wire connections on the 712 to 4-wire connections on the Fluke 8508A . Set the Fluke 8508A to measure 4-wire resistance. 12. Press I until OUTPUT is displayed. 13. Set the 712 to output the resistance values in Table 38. Verify that the Fluke 8508A readings are within the limits shown.

  • Page 41: 712 Verification (V2.0 And Later)

    Process Calibrators Verification Table 38. 712 Verification Outputs 712 Outputs (Ohms) Fluke 8508A Readings (Ohms) 5.00 4.90 to 5.10 300.00 299.90 to 300.10 1500.0 1499.5 to 1500.5 3000.0 2999.0 to 3001.0 14. Disconnect all connections to the 712. The 712 verification test is complete.

  • Page 42: 714 Verification (Earlier Than V2.0)

    Fluke 8508A to measure 4-wire resistance. 12. Press I until OUTPUT is displayed. 13. Set the 712 to output the resistance values in Table 41. Verify that the Fluke 8508A readings are within the limits shown. Table 41. 712 Verification Outputs...

  • Page 43: Thermocouple Source Verification

    5. On the 714 press the key until "mV" is shown on the display. 6. Set the Fluke 5520A to the settings in Table 43, and verify the display readings on the 714 Calibrator. Table 43. 714 Thermocouple Measure Verification (mA)

  • Page 44: Keypad Test

    2. Press the key to measure Type J thermocouple and connect the Type J thermocouple test lead from the TC jack of the Fluke 5520A to the TC jack on the 714 Calibrator, observing correct polarity. 3. Set the Fluke 5520A to output in Type J thermocouple, press the Okey, and set the 5520A to the settings in Table 46, verifying the display readings on the 714: Table 46.

  • Page 45: Thermocouple Source Verification

    8. On the 714 press the key until "mV" is shown on the display. 9. Set the Fluke 5520A to the settings in Table 47, and verify the display readings on the 714 Calibrator. Table 47. 714 Thermocouple Measure Verification (mA)

  • Page 46: 715 Verification (Earlier Than V2.0)

    OUTPUT 0.000 V 3. Connect test leads from the Fluke 8508A input HI & LO jacks to the voltage jacks on the 715 Calibrator (black to COM and red to V). 4. Using the large [ scroll button of the 715 Calibrator, press to step to the voltages in Table 50, verifying the output on the Fluke 8508A: Table 50.

  • Page 47: Keypad Test

    2. Press the A key and the display should change to: INPUT 0.000 mA 3. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+ terminal. 4. Connect a test lead from Black AUX terminal of the 5520A to the 715 Calibrator Com terminal.

  • Page 48: Dc Voltage Measure Verification

    OUTPUT 0.000 V 3. Connect test leads from the Fluke 8508A input HI & LO jacks to the voltage jacks on the 715 Calibrator (black to COM and red to V). 4. Using the large [ scroll button of the 715 Calibrator, press to step to the voltages in...

  • Page 49: Dc Current Source Verification

    2. Connect test leads from the 715 Calibrator's mA output jacks (black to V jack and red to +LOOP jack) to the Fluke 8508A input mA jacks (black to I- and red to I+). 3. Set the Fluke 8508A function to [ ].

  • Page 50: Dc Voltage Measure Verification

    71X Series Calibration Manual 6. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the same as the 5520A values shown in Table 59. 7. Verify that the display readings on the 715 Calibrator are within the limits.
  • Page 51 Process Calibrators Verification The display should read 0.00 PSI with the deadweight tester opened up to ambient air. If not, press the key until display reads 0.00 PSI. 2. Set up the deadweight tester for the sequence of PSI inputs from Table 62 to be injected into the pressure port of the 717 Calibrator.

  • Page 52: Ma Measure Verification

    4. Carefully vent all pressure and disconnect the 717 from the deadweight tester. mA Measure Verification 1. Press to turn power on. The display should read: ---------- then change to: 0.000 mA 0.00PSI 2. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+ terminal.

  • Page 53: Ma Loop Power Verification

    3. Connect a test lead from Black AUX terminal of the 5520A to the 717 Calibrator Com terminal. 4. Connect a test lead from I- terminal of the Fluke 8508A to the 717 Calibrator mA terminal. 5. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the same as the 5520A values shown in Table 63.

  • Page 54: Pressure Verification

    71X Series Calibration Manual Pressure Verification WWarning To avoid a violent release of pressure or vacuum, always depressurize the system slowly using the pressure/vacuum release control before detaching any pressure line. 1. Carefully attach the pressure fitting of the deadweight tester to the pressure port of the Calibrator.

  • Page 55: Leak Test Verification

    The display should indicate: 0.000mA 0.00 PSI 1. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+ terminal. 2. Connect a test lead from Black AUX terminal of the 5520A to the Calibrator Com...

  • Page 56: Ma Loop Power Verification (718 Only)

    3. Connect a test lead from I- terminal of the Fluke 8508A to the Calibrator mA terminal. 4. Adjust the 5520A if necessary so that the current shown on the Fluke 8508A is the same as the 5520A values shown in Table 66.

  • Page 57: 719 Verification

    Process Calibrators Verification 719 Verification This procedure is appropriate for the 719. Display Verification 1. Press and hold O. This locks the 719 in a mode where all display segments are on. All segments will stay on until Ois released. 2.

  • Page 58: Leak Test Verification

    The lower display should indicate: 0.000mA 1. Connect a test lead from Red AUX terminal of the 5520A to the Fluke 8508A I+ terminal. 2. Connect a test lead from Black AUX terminal of the 5520A to the Calibrator COM terminal.

  • Page 59: Ma Source Verification

    Process Calibrators Verification 4. Adjust the 5520A so that the current shown on the Fluke 8508A is the same as the 5520A values shown in Table 69. 5. Verify that the display readings on the Calibrator are within the limits.

  • Page 60: Ma Loop Power Verification

    --------- 2. Change to a near zero value, similar to: 0.000 3. Plug the Fluke Pressure Module into the sensor port of the Fluke 719. The display should change to: --------- After a short wait, a pressure value should appear on the display.

  • Page 61: Resistance Measure

    3. Connect the test lead from the NORMAL jacks of the Fluke 5520A to the INPUT jacks (two middle jacks) on the 712 Calibrator (black to black, red to red). 4. Set the Fluke 5520A to 0.0000 mV and press O. Press any key on the 712 Calibrator. The display should read:...

  • Page 62: Ma Measure

    1. Disconnect all four test leads from the Fluke 5520A and the 712 Calibrator. 2. Connect the two test leads from the AUX jacks on the Fluke 5520A to the middle jacks on the 712 Calibrator (black to black; red to red).
  • Page 63 OUTPUT 17-50 Ω. 13. Using four test leads, connect the four jacks of Fluke 8508A (Ω Sense 'Hi & Lo' and Input 'Hi & Lo') to the two middle jacks of the 712 Calibrator (black to black; red to red).

  • Page 64: 712 Calibration (V2.0 And Later)

    71X Series Calibration Manual OUTPUT ----- Ω then the unit will reset. 24. Press the power key to turn the unit off and disconnect the test leads. 712 Calibration (V2.0 and Later) 1. Hold down R and C while turning the power on. 2.

  • Page 65: Ohms Output High Range

    INPUT 0.00 mV 3. Connect the two-wire copper test lead (banana jacks to mini-connector) from the NORMAL jacks of the Fluke 5520A to the TC jack on the 714 Calibrator, observing correct polarity. Note Copper wire must be used during this step.

  • Page 66: Thermocouple Block Calibration

    0.0 °C TYPE J Thermocouple Block Calibration 1. Connect the Type-J thermocouple test lead from the TC jack on the Fluke 5520A to the TC jack on the 714 Calibrator, observing correct polarity. Note Type-J thermocouple wire (not copper) must be used.

  • Page 67: Mv Output

    INPUT 0.000 mA 3. Connect two test leads from the AUX jacks of the Fluke 5520A to the middle mA input jacks on the 715 Calibrator (black to COM jack and red to mA jack). 4. Set the Fluke 5520A to 0.00000 mA and press O.

  • Page 68: Ma/Volts Source Measure

    INPUT 0.000 V 8. Connect test lead from the NORMAL output jacks of the Fluke 5520A to the voltage jacks on the 715 Calibrator (black to COM jack and red to the V jack). 9. Set the Fluke 5520A to 0.0000 mV and press O.

  • Page 69: 715 Calibration (V2.0 And Later)

    Process Calibrators Calibration 4. Press any key on the 715 Calibrator. Display should read: OUTPUT ----- mA 5. The 715 will then reset itself with all segments momentarily being displayed, then change to: OUTPUT 0.0000 V The 715 is now out of the CAL mode. Turn the green O key to turn the calibrator off. 715 Calibration (V2.0 and Later) 1.

  • Page 70: Ma Input

    71X Series Calibration Manual 6. Press to go to the next mode mA INPUT 1. In mA INPUT mode, the unit displays “CAL 0” for 1 second followed by the input mA using the default calibration. 2. Move the red test lead to mA jack. 3.

  • Page 71: Ma Output

    After CAL shows, the display will automatically read: 0.000mA 2. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the 717 Calibrator (Black to Black and Red to Red). 3. Set the Fluke 5520A to 0.00000 mA and press O.
  • Page 72 71X Series Calibration Manual 2. For the 717 100G press the M key. For the 717 30G, press the key. The display will flash for a short time: ------ rAnGE then display: 0.00 PSI 3. Vent the system to ambient air to ensure 0.00 PSI. 4.

  • Page 73: 717 Calibration (V2.0 And Later)

    The lower display indicates what function and point is being calibrated. 3. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the 717 Calibrator (black to black and red to red).

  • Page 74: 718 Calibration (Earlier Than V2.0)

    718 into Cal Mode. The 718 should display: 0.000 mA 3. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the 718 Calibrator (black to black and red to red).

  • Page 75: Pressure Measure

    Process Calibrators Calibration 7. Press any key on the 718 Calibrator. The display should read: ----- 24.00 mA then change to: rAnGE Pressure Measure The 718 Pressure Calibrators have built-in temperature compensation. Instruments being calibrated should be in a stable temperature environment for several minutes before calibration.

  • Page 76: 718 Calibration (V2.0 And Later)

    The lower display indicates what function and point is being calibrated. 3. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the 718 Calibrator (black to black and red to red).
  • Page 77 Process Calibrators Calibration 4. Set the Fluke 5520A to 0.00000 mA and press O. 5. When 0.0 mA is sourced from the 5520A the upper display indicates about "0.000 mA". When D is pushed, the unit establishes the calibration constant for that point and the lower display changes to "CAL 24 mA".

  • Page 78: 718Ex Calibration

    The lower display indicates what function and point is being calibrated. 3. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the 718Ex Calibrator (black to black and red to red).

  • Page 79: 719 Calibration (V1.0)

    Process Calibrators Calibration Pressure Measure The 718Ex Pressure Calibrator has built-in temperature compensation. Instruments being calibrated should be in a stable temperature environment for several minutes before calibration. Calibration facilities should be maintained near 23 °C nominal. Re-calibration (re-characterization) is performed in terms of ‘PSI’ pressure units. Inputs using other pressure units (ie.

  • Page 80: Ma Output Calibraton

    CAL 0 mA on the lower display. 7. Connect the test leads from the AUX jacks of the Fluke 5520A to the mA jacks on the 719 Calibrator (black to black and red to red).

  • Page 81: Pressure Measure

    Process Calibrators Calibration • The mA OUTPUT self calibration takes approximately 30 seconds. Press Cto continue. The lower display changes to: rAnGE Pressure Measure The Calibrator has built-in temperature compensation. Instruments being calibrated should be in a stable temperature environment for several minutes before calibration. Calibration facilities should be maintained near 23 °C nominal.

  • Page 82: Replacement Parts And Accessories

    Table 71 lists the replaceable parts and accessories for the 71X Calibrators. See Figure 7 for an exploded view of the 718 Calibrator. Fluke repair is recommended for the 718Ex and no 718Ex replacement parts are listed in Table 71.
  • Page 83 Process Calibrators Replacement Parts and Accessories Table 71. Replaceable Parts and Accessories (cont.) PN or Ref. Description Used On Qty. Des. Model No. MP14 Spacer for pressure input 687449 717,718 MP20 Shield, LCD, Top Case 687092 MP21 LCD Zebra Strip 643376 MP22 O-ring for input/output receptacle...
  • Page 84 71X Series Calibration Manual Table 71. Replaceable Parts and Accessories (cont.) Ref. Description PN or Used On Qty. Des. Model No. Holster, yellow 664182 Test lead, red 688051 Test lead, black 688066 ACCESSORIES AC72 Alligator Clips 1670641 Black 1670652 CG81Y Holster, Yellow 2074033 TL20...

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