Fluke 772 Calibration Manual
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Fluke 772 Calibration Manual

Milliamp process clamp meter
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772/773
Milliamp Process Clamp Meter
Calibration Manual
October 2009
© 2009 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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  • Page 1 772/773 Milliamp Process Clamp Meter Calibration Manual October 2009 © 2009 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for 3 years (one year for cable and clamp) from the date of purchase. Parts, product repairs, and services are warranted for 90 days. This...

  • Page 3: Table Of Contents

    Table of Contents Title Page Introduction......................1 How to Contact Fluke ..................2 Safety Information ..................... 2 Symbols ......................4 Specifications..................... 4 Electrical Specifications ................4 DC Current Measurement ................. 4 DC Voltage Measurement (773) ............... 4 DC Voltage Source (773)................5 mA DC IN/OUT (773) ................
  • Page 4 772/773 Calibration Manual...
  • Page 5 List of Tables Table Title Page Symbols........................4 Required Equipment....................7 Calibration Functions ..................... 11 Calibration Adjustments..................12 Error Messages....................... 12 Clamp Measure Adjustment Procedure..............13 mA Measure Adjustment Procedure ..............13 Volt Measure Adjustment Procedure ..............13 mA Source Adjustment Procedure................. 14 Volt Source Adjustment Procedure................
  • Page 6 772/773 Calibration Manual...
  • Page 7 List of Figures Figure Title Page Tactile Barrier ......................3 Battery Replacement ....................7 Display Test ......................8 Accessing the Calibration Button................11 Replaceable Parts ....................16...
  • Page 8 772/773 Calibration Manual...

  • Page 9: Introduction

    Introduction XW Warning To prevent electrical shock or personal injury, do not do the calibration verification tests or calibration procedures in this manual unless you are qualified. The data in this manual is for qualified personnel only. This manual tells you about verification and adjustment procedures for the 772/773 Milliamp Process Clamp Meter (referred to in this manual as the Meter).

  • Page 10: How To Contact Fluke

    772/773 Calibration Manual 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) Canada: 1-800-36-FLUKE (1-800-363-5853) Europe: +31 402-675-200 Japan: +81-3-3434-0181 Singapore: +65-738-5655 Anywhere in the world: +1-425-446-5500 Or, visit Fluke's website at www.fluke.com.
  • Page 11 Milliamp Process Clamp Meter Safety Information When you measure, keep your fingers behind the Tactile Barrier. See Figure 1. Do not use with a non-insulated conductor. Do not use near strong magnetic fields. Remove test leads before you open the case. WCaution To prevent damage to the Meter, do not open it.

  • Page 12: Symbols

    Low Battery Confirms with relevant European Union directives. DC (Direct Current) Do not dispose of this the product as unsorted municipal waste. Go to Fluke’s web site for recycling data. Conforms to relevant Australian standards. Conforms to relevant Canadian and US standards.

  • Page 13: Dc Voltage Source (773)

    Milliamp Process Clamp Meter General Specifications DC Voltage Source (773) Range ........0-10 V Resolution........0.01 V Accuracy........0.2 % + 2 counts mA Drive........2 mA max all conditions mA DC IN/OUT (773) Sourcing range ......0-24 mA Sourcing resolution ....0.01 mA Sourcing accuracy .....

  • Page 14: Basic Maintenance

    772/773 Calibration Manual Basic Maintenance XWWarning To prevent electrical shock or personal injury, repairs or servicing not included in this manual must be done only by qualified personnel. How to Clean the Meter XWWarning To prevent electrical shock or personal injury, remove test leads before you clean the Meter.
  • Page 15 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 16 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 17: Performance Tests

    The tests that follow verify the functions of the Meter. If the Meter fails the verification tests, repair is necessary. For Meter servicing, see “How to Contact Fluke”. Required Equipment Required equipment for the performance tests is in Table 2. If the recommended models are not available, equipment with equivalent specifications can be used.

  • Page 18: How To Test The Batteries

    772/773 Calibration Manual How to Test the Batteries Prior to performing the following tests, check the batteries with a multimeter and replace as necessary. See “Battery Replacement”. How to Test the Display 1. Push and hold H while powering on the Meter. 2.

  • Page 19: Accuracy Tests

    Milliamp Process Clamp Meter Accuracy Tests Accuracy Tests Accuracy specifications are valid for 1 year after calibration adjustment when measured at an operation temperature of 18 C to 28 C. Allow the Meter to stabilize at room temperature prior to performing the accuracy tests. The following tables list the required performance test points for verifying Meter accuracy.

  • Page 20: Volts Dc Measure Accuracy Tests

    772/773 Calibration Manual Volts DC Measure Accuracy Tests UUT Meter Reading Limit Step Calibrator Output High 0.00 V -0.02 V 0.02 V 10.00 V 9.96 V 10.04 V -10.00 V -10.04 V -9.96 V 20.00 V 19.94 V 20.06 V -20.00 V -20.06 V -19.94 V...
  • Page 21 Milliamp Process Clamp Meter Calibration Adjustment To turn on Calibration mode: 1. Remove the batteries and substitute with a lab supply set to 6 V dc. 2. Open the battery door. The calibration button is usually hidden by the factory calibration seal.

  • Page 22: Calibration Error Messages

    772/773 Calibration Manual Table 4 shows the Meter buttons you use to adjust the Meters calibration. Table 4. Calibration Adjustments Button Calibration Adjustment Description A short button push (1 second) changes the Meter to the first calibration step A long button push exits the Meters calibration mode Adjust source output in large steps Adjust source output in small steps Forward to subsequent calibration step...

  • Page 23: Ma Dc Clamp Measure Adjustment Procedure

    Milliamp Process Clamp Meter Calibration Adjustment mA DC Clamp Measure Adjustment Procedure To adjust the Clamp Measure function, use the Calibrator to apply the necessary Meter input and do the steps in Table 6. Table 6. Clamp Measure Adjustment Procedure Step Meter Display Calibrator Output...

  • Page 24: Ma Dc Source Adjust Procedure

    772/773 Calibration Manual mA DC Source Adjust Procedure To adjust the mA Source function, use the Calibrator to apply the necessary Meter input and do the steps in Table 9. Table 9. mA Source Adjustment Procedure Step Meter LCD display Action 4.00 mA Adjust until Meter output is 4.00 mA, push H...

  • Page 25: Replaceable Parts

    Milliamp Process Clamp Meter Replaceable Parts Replaceable Parts Table 11 and Figure 5 show all replaceable parts. Table 11. Replaceable Parts Part or Item Description Quantity Model Number AA Batteries, 1.5 V 376756 Absorber 3369914 Battery door 3350978 Fastener 948609 Soft Carrying Case 3351060 Instruction Sheet...
  • Page 26 772/773 Calibration Manual ® 7 7 2 /7 M et er am p es s Cl p Pr oc M illi am M an ua ra tio n C al ib out notic ge with ect to chan are subj ifica tions uct spec in USA...

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