Fluke 772 Instruction Sheet
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Fluke 772 Instruction Sheet

Milliamp process clamp meter
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Milliamp Process Clamp Meter
Introduction
The hand-held, battery-operated Fluke 772 and 773 Milliamp Process
Clamp Meters (the Meter or Product) can be used in troubleshooting
transmitters, valves, PLC and DCS I/O. Unlike conventional clamp meters,
the Meter features a remote jaw that is connected to the main body via
extension cable.
Features
•
In-circuit measurement of 0 mA to 24 mA dc and up to 99.9 mA dc
using a remotely connected clamp via extension cable
•
0 mA to 24 mA dc sourcing and simulating
•
0 V to 10 V dc sourcing (773)
•
Loop power supply 24 V dc output
•
0 V to 30 V dc measurement (773)
•
Scaled mA output (773)
•
Simultaneous mA measurement via detachable clamp and mA
sourcing (773)
•
250 Ω HART resistor for mA source
•
Electronic zero
•
Percentage span (0 % to 100 %)
•
Hold
•
Auto power off (battery saver)
•
Display backlight
•
Measurement spotlight LED
PN 3351049
February 2009 Rev. 1, 5/19
© 2009-2019 Fluke Corporation. All rights reserved.
All product names are trademarks of their respective companies. Specifications are subject to
change without notice.
772/773
Instruction Sheet

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  • Page 1 Milliamp Process Clamp Meter Instruction Sheet Introduction The hand-held, battery-operated Fluke 772 and 773 Milliamp Process Clamp Meters (the Meter or Product) can be used in troubleshooting transmitters, valves, PLC and DCS I/O. Unlike conventional clamp meters, the Meter features a remote jaw that is connected to the main body via extension cable.

  • Page 2: Contacting Fluke

    AC 72 detachable clip • TL 940 mini hook test leads • Instruction sheet Contacting 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) •...
  • Page 3 • Comply with local and national safety codes. Use personal protective equipment (approved rubber gloves, face protection, and flame-resistant clothes) to prevent shock and arc blast injury where hazardous live conductors are exposed. • Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V dc.
  • Page 4 Table 1 explains the symbols that are used on the Meter or in this Instruction Sheet. Table 1. Symbols Symbol Explanation Consult user documentation.  WARNING. RISK OF DANGER. WARNING. HAZARDOUS VOLTAGE. Risk of electric shock.  Power on/off Do not apply around or remove from uninsulated hazardous live conductors without taking additional protective measures.

  • Page 5: Getting Acquainted With The Meter

    Getting Acquainted with the Meter Figures 1-4 explain the Meter’s features, buttons, input/output jacks, and display. LOOP PWR mA SCALE mA I N / OUT HA RT Fjv06.emf Number Description Turn on and off the Meter  Measurement spotlight LED button ...
  • Page 6 fjv05.emf Number Description Detachable clamp  Tactile Barrier docked and un-docked. Refer to Safety Information  and Symbols. Display  Measurement spotlight LED  Figure 2. The Milliamp Process Clamp Meter...
  • Page 7 Fjv07.emf Number Description Main display values  HOLD is activated  Clamp is active  Test lead jack indicator. Test lead connection is required.  HART 250 Ω resistor is engaged  Shift is active  Reading is scaled  Loop Power is active ...

  • Page 8: Zero Adjust

    The Source and Simulate Percentage Span feature displays the span for 4 to 20 mA loops. Use , , , and  to adjust the source or simulated current (772) or dc voltage and current (773). 20 mA 100 %...

  • Page 9: User Options

    User Options Several user options can be activated at Meter power up. Hold  when powering on the Meter. While holding down , toggle on/off each option by repeatedly pressing the following keys: •  toggle on/off backlight auto off. Display shows bLit on or oFF. •...

  • Page 10: Probe Holder

    Probe Holder The Meter is equipped with a probe holder that can either hold a test probe or can be used to attach the Fluke ToolPak. See Figure 5. Fjv08.emf Figure 5. The Probe Holder Taking Measurements XW Warning To prevent possible electric shock, fire, or personal injury, do not use the clamp on non-insulated conductors.
  • Page 11 fjv03.emf Figure 6. Taking Measurements with the Clamp To use the test leads for measurements: Insert the test leads into the proper input jacks. See Figure 7. Press the correct button for the measurement. Apply the test leads. Observe the reading on the main display. In mA mode, the secondary display shows the reading in percentage of span.
  • Page 12 Source mode depletes the battery faster than Simulate mode. To enter Source mode for the 772, see Figure 4: Insert the test leads into the -mA and +mA jacks.

  • Page 13: Loop Supply

    Fjv11.emf Figure 9. Simulating mA Output Loop Supply In Loop Supply mode, the Meter powers a transmitter while measuring the mA signal. To enter Loop Supply mode, see Figure 10: Insert the test leads into the LOOP PWR jacks. See Figure 10. Press .

  • Page 14: Maintenance

    Maintenance XW Warning To prevent possible electric shock, fire, or personal injury: • Remove the input signals before you clean the Product. • Repairs or servicing not covered in this manual should be performed only by qualified personnel. • Replace all batteries with fresh batteries of the same manufacturer and type to prevent battery leakage.

  • Page 15: Electrical Specifications

    Specifications Electrical Specifications DC Current Measurement With Jaw Ranges ..........0 mA to 20.99 mA; 21 mA to 100 mA Resolution........... 0.01 mA, 0.1 mA Accuracy ..........0.2 % + 5 counts, 1 % + 5 counts In Circuit Range ..........0 mA to 24 mA Resolution...........

  • Page 16: Mechanical Specifications

    Response speed ......... 2x/second DC Loop Power ........... 24 V Influence of Earth’s Field ......<0.20 mA Batteries ............4 1.5 V, Alkaline, IEC LR6 Working hours ..........12 hours @ 12 mA sourced into 500 Ω Mechanical Specifications Size (H X W X L) ......... 43.7 mm x 70 mm x 246.2 mm Weight ............

  • Page 17: Miscellaneous Specifications

    1 Set 4101772 AC175 Alligator Clips 1 Set 3031302 Hook and Loop Strip 669967 TPAK, Strap 17 inches 3375746 Hanger Replacement clamp and cable assembly are available but require re- calibration. See the 772/773 Calibration Manual for part numbers and procedures.
  • Page 18 LIMITED WARRANTY & 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. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse or abnormal conditions of operation or handling.

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