Fluke ProcessMeter 789 Calibration Manual
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Fluke ProcessMeter 789 Calibration Manual

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®
789
ProcessMeter
Calibration Manual
PN 1988891
September 2002
© 2002 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke ProcessMeter 789

  • Page 1 ® ProcessMeter Calibration Manual PN 1988891 September 2002 © 2002 Fluke Corporation, All rights reserved. Printed in USA 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: Table Of Contents

    Table of Contents Title Page Introduction......................1 Contacting Fluke....................1 Read First -Safety Information ................2 Warnings and Cautions.................. 2 Symbols ......................3 Specifications..................... 4 General Specifications................... 7 Required Equipment ..................7 Basic Maintenance ..................... 8 Cleaning the ProcessMeter ................8 Replacing the Batteries..................
  • Page 4 Calibration Manual...
  • Page 5 List of Tables Table Title Page Symbols........................3 Required Equipment and Software................. 8 Typical Alkaline Battery Life ................9 Current Sourcing Test .................... 13 DC mA Test ......................15 DC Amp Test ......................15 AC Amp Test ......................15 Resistance Measurement Test Using a 5500A or 5520A Calibrator...... 19 DC mV Test ......................
  • Page 6 Calibration Manual...
  • Page 7 List of Figures Figure Title Page Replacing the Batteries and Fuses................9 Verifying Loop Power.................... 12 Current Sourcing Connections Using the HP 3458A ..........13 Current Measurement Test Connections ..............14 Diode Test Connections ..................16 Continuity Test Connections.................. 17 Resistance Measurement Test Connections ............
  • Page 8 Calibration Manual...

  • Page 9: Introduction

    • Accessories and replaceable parts For complete operating instructions, refer to the 789 ProcessMeter Users Manual (on the CD-ROM provided). Contacting Fluke To contact Fluke, call: USA : 1-888-99-FLUKE (1-888-993-5853) Canada: 1-800-36-FLUKE (1-800-363-5853) Europe: +31 402-678-200 Japan: +81-3-3434-0181 Singapore: +65-738-5655...

  • Page 10: Read First -Safety Information

    Calibration Manual Read First -Safety Information Warnings and Cautions In this manual, a Warning identifies conditions and actions that pose hazard(s) to the user; a Caution identifies conditions and actions that may damage the ProcessMeter or the test instruments. WXWarning To avoid possible electric shock or personal injury: •...

  • Page 11: Symbols

    789 ProcessMeter Symbols WCaution To avoid possible damage to the ProcessMeter or the test equipment: • Disconnect the power and discharge all high voltage capacitors before testing resistance, diodes, or continuity. • Use the proper terminals, switch setting, and range for the measurement or sourcing applications.

  • Page 12: Specifications

    Calibration Manual Specifications All specifications apply from +18 °C to +28 °C unless stated otherwise. All specifications assume a 5-minute warm-up period. The standard specification interval is 1 year. Note “Counts” refers to the number of increments or decrements of the least significant digit.
  • Page 13 789 ProcessMeter Specifications AC Current Measurement Range Resolution Accuracy, Typical Burden ±(% of Reading + Counts) 45 Hz to 2 kHz Voltage 1.000 A (Note) 0.001 A 1 % + 2 1.5 V/A Note: 440 mA continuous, 1 A 30 seconds maximum Specifications are valid from 5 % to 100 % of amplitude range.
  • Page 14 Calibration Manual Frequency Counter Sensitivity Input Range Minimum Sensitivity (rms Sinewave) 5 Hz to 5 kHz* (approximate trigger level 5 % of full scale) 400 mV 150 mV (50 Hz to 5 kHz) 150 mV 40 V 400 V 40 V 40 V 1000 V 400 V...

  • Page 15: General Specifications

    Unless otherwise indicated, all connection diagrams for the calibration verification tests in this manual showing a calibrator or digital multimeter use a Fluke 5500A calibrator or Agilent 3458A. If you are using a different calibrator or DMM, make the connections...

  • Page 16: Basic Maintenance

    741,743, or 744 Process Calibrator Digital Multimeter No Substitute Agilent 3458A Leakage resistance > than 1.0 x 10 Test Leads, low leakage, Fluke 5440A-7002 Low Thermal Ω at 45 °C and 75 % relative humidity RG-58/U type Test Leads Basic Maintenance Cleaning the ProcessMeter...

  • Page 17: Battery Life

    789 ProcessMeter Basic Maintenance anw037.eps Figure 1. Replacing the Batteries and Fuses Battery Life WXWarning To avoid false readings, which can lead to possible electric shock or personal injury, replace the batteries as soon as the low battery indicator (M) appears. The ProcessMeter is powered by four AA alkaline batteries.

  • Page 18: Checking And Replacing The Fuses

    WXWarning To avoid personal injury or damage to the ProcessMeter, use only the specified replacement fuse, 440 mA 1000 V fast-blow, Fluke PN 943121. Both current input jacks are fused with separate 440 mA fuses. To determine if a fuse is blown: 1.

  • Page 19: Calibration Verification

    Note Calibration verification tests for the ProcessMeter can be performed ® manually, or they can be computer-automated (using Fluke’s MET/CAL Calibration Software). This document provides the procedures necessary to perform the calibration verification test manually. Preparing to Perform Calibration Verification Note Throughout the calibration verification tests, “UUT”...

  • Page 20: Loop Power

    Calibration Manual 4. Warm up the calibrator and multimeter as required by their specifications. 5. Remove all input cables from the front of the UUT. 6. Make sure that the UUT is in a stable ambient temperature between 18 °C and 28 °C (64.4 °F and 82.4 °F) and that it has been warmed up for 5 minutes.

  • Page 21: Current Sourcing

    789 ProcessMeter Calibration Verification Current Sourcing 1. Put the calibrator in Standby ( ) mode. STBY ) and − ( 2. Connect the ) terminals on the UUT to the current SOURCE terminals on the multimeter as shown in Figure 3. 3.

  • Page 22: Current Measurement

    Calibration Manual Current Measurement 1. Put the calibrator in Standby ( ) mode. STBY 2. Put the UUT rotary switch in the position 3. Connect the calibrator to the terminals on the UUT as shown in Figure 4. 4. Apply the values from the calibrator shown in Table 5 and compare the readings on the UUT to the acceptable readings shown.

  • Page 23: Checking The Diode Test Function

    789 ProcessMeter Calibration Verification Table 5. DC mA Test 789 Range Calibrator Minimum Acceptable Maximum Acceptable DC Current Reading Reading No Range Switching 4.000 mA 3.996 mA 4.004 mA No Range Switching 12.000 mA 11.992 mA 12.008 mA No Range Switching 20.000 mA 19.988 mA 20.012 mA...
  • Page 24 Calibration Manual PROCESSMETER RANGE HOLD (BLUE) 100% MIN MAX SpanCheck %STEP COARSE FINE 5500A 5500A CALIBRATOR HART NORMAL SCOPE LOOP POWER -SENSE, 200V PK PREV AUX V STBY EARTH SCOPE BOOST MENU µ EDIT 1000V SETUP RESET FIELD TRIG ¡F ¡C 1V PK 20V PK...

  • Page 25: Checking The Continuity Test Function

    789 ProcessMeter Calibration Verification Checking the Continuity Test Function 1. Put the calibrator in Standby ( STBY ) mode, and turn the UUT rotary switch to the position. 2. Connect the calibrator to the terminals on the UUT as shown in Figure 6.

  • Page 26: Resistance Measurement Test

    Compare the readings on the UUT to the acceptable readings shown. 5. Change the connections to the UUT. Using the Fluke 5440A-7002 low thermal leads, connect the calibrator to the UUT as shown by the solid lines in Figure 7.
  • Page 27 789 ProcessMeter Calibration Verification Table 8. Resistance Measurement Test Using a 5500A or 5520A Calibrator 789 Range Calibrator Calibrator Minimum Maximum Resistance Compensation Mode Reading Reading 400 Ω 120 Ω 119.6 Ω 120.4 Ω 2-Wire 400 Ω 300 Ω 299.2 Ω 300.8 Ω...

  • Page 28: Dc Millivolts Measurement Test

    Calibration Manual DC Millivolts Measurement Test 1. Put the calibrator in Standby ( ) mode. STBY 2. Put the UUT rotary switch in the position. 3. Connect the calibrator to the terminals on the UUT as shown in Figure 8. 4.

  • Page 29: Dc Volts Measurement Tests

    789 ProcessMeter Calibration Verification DC Volts Measurement Tests WXWarning To avoid possible electrical shock or personal injury: • Some of the calibration verification tests involve the use of high voltages and should be performed by qualified personnel only. • Always place the calibrator in the Standby (STBY) mode between tests and before handling the test connections or test cables.

  • Page 30: Ac Volts Measurement Test

    Calibration Manual Table 10. DC Volts Test 789 Range Calibrator DC Voltage Minimum Reading Maximum Reading 4 V dc 0.998 V 1.002 V 4 V dc 2.996 V 3.004 V 40 V dc 10 V 9.98 V 10.02 V 40 V dc 30 V 29.96 V 30.04 V...

  • Page 31: Frequency Measurement Test

    789 ProcessMeter Calibration Verification Frequency Measurement Test 1. Put the calibrator in Standby ( ) mode. STBY 2. Put the UUT rotary switch in the (ac volts) position. 3. Press to toggle to the frequency measurement function. 4. Connect the calibrator to the terminals on the UUT as shown in Figure 10.

  • Page 32: Calibration Adjustment

    Inspect the test leads and test connections for damaged insulation or exposed metal. • Look for cracks, missing plastic or damaged insulation. If damage is detected, do not continue; contact Fluke to have the ProcessMeter serviced. • Make sure that the battery compartment door on the ProcessMeter is closed and latched before using it.

  • Page 33: Ac Voltage Adjustment

    789 ProcessMeter Calibration Adjustment Note The calibration adjustment procedures assume that the person performing them knows how to use the ProcessMeter and the required equipment. Do not attempt to calibrate the ProcessMeter unless you are qualified to do so. Throughout the following, “UUT” (unit under test) refers to the ProcessMeter;...

  • Page 34: Frequency Adjustment

    Calibration Manual Calibration Button aau04f.eps Figure 11. Calibration Button Access Frequency Adjustment 1. Connect the Processmeter to the volt/ohm output of the 5500A calibrator. 2. Turn the UUT’s switch to S. 3. Push h. 4. Press and hold the Calibration Button for approximately 2 seconds. The unit will beep (see Figure 11).

  • Page 35: Dc Voltage Adjustment

    789 ProcessMeter Calibration Adjustment DC Voltage Adjustment 1. Connect the Processmeter to the volt/ohm output of the 5500A calibrator. 2. Turn the UUT’s switch to T. 3. Press and hold the Calibration Button for approximately 2 seconds. The unit will beep (see Figure 11).

  • Page 36: Dc Millivolts Adjustment

    Calibration Manual DC Millivolts Adjustment 1. Connect the Processmeter to the volt/ohm output of the 5500A calibrator. 2. Turn the UUT’s switch to U. 4. Press and hold the Calibration Button for approximately 2 seconds. The unit will beep (see Figure 11). Note Pressing the Calibration Button puts the Processmeter into and out of calibration mode.

  • Page 37: Diode Adjustment

    789 ProcessMeter Calibration Adjustment Diode Adjustment 1. Connect the Processmeter to the volt/ohm output of the 5500A calibrator. 2. Turn the UUT’s switch to 3. Press J (blue) to enter the diode function. 4. Press and hold the Calibration Button for approximately 2 seconds. The unit will beep (see Figure 11).

  • Page 38: Amps Dc Adjustment

    Calibration Manual Amps DC Adjustment 1. Connect the Processmeter to the A output of the 5500A calibrator. 2. Turn the UUT’s switch to . Make sure the test leads are in the jacks. 3. Press and hold the Calibration Button for 2 seconds (see Figure 11). The unit will beep.

  • Page 39: Replacement Parts And Accessories

    Replacement parts and some accessories are shown in Figure 12 and listed in Table 13. Many more DMM accessories are available from Fluke. For a catalog, contact the nearest Fluke distributor. To find out how to order parts or accessories use the telephone numbers or addresses shown in "Contacting Fluke".
  • Page 40 Calibration Manual Table 13. Replacement Parts Item Reference Number Designator Description Fluke PN or Quantity Model no. MP14 Knob Assembly 658440 Top Case with Lens 1622862 Protector Decal, Top Case 1623923 Keypad 1622951 Top Shield 1622924 MP47 Top Shield Contact...

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