- Best in class 0.2 % accuracy
- 0.01 mA resolution and sensitivity
- Measure 4 to 20 mA signals without ”breaking the loop”
- Measure mA signals for PLC and control system analog I/O
- Dual backlit display with both mA measurement and percent of 4 to 20 mA span
- Measurement Spotlight illuminates hard to see wires in dark enclosures
- Detachable clamp with extension cable for measurements in tight locations
- Measure 10 to 50 mA signals in older control systems using the 99.9 mA range
- Automatically change the 4 to 20 mA output for remote testing
- Power saving features, auto-off, backlight timeout extend battery life
- Hold function captures and displays changing measurements
- Measure 4 to 20 mA signals with in-circuit measurement
- Simultaneous mA in-circuit measurement with 24V loop power for powering and testing transmitters
- Source 4 to 20 mA signals for testing control system I/O or I/Ps
- mA output linear ramp or 25% step output
- Automatically change the 4 to 20 mA output for remote testing
- DC voltage measurement to verify 24V power supplies or voltage I/O signals
- Source DC voltage to test input devices that accept a 1-5V or 0 to 10V signals
- Scaled mA output provides a continuous mA signal that corresponds to the 4 to 20 mA signal measured by the mA clamp
- Enables milliamp signal logging to a separate logging device without breaking the loop
- Output mA signal enables a logging DMM or other device to record the 4- to 20 mA signal without breaking the loop
- mA in/out: simultaneously measure the mA signal with the clamp and source a mA signal
- Apply a mA input signal to a device and measure its’ 4-20 mA output on devices such as valves or mA isolators
- Voltage output linear ramp or 25% step output
- Automatically change the voltage output for remote testing
What’s the difference between the 77X models?
| . | Fluke-771 | Fluke-772 | Fluke-773 |
| . | Non-contact mA loop measurement | Integrated mA loop troubleshooting | Advanced process troubleshooting |
| mA measure, jaw | |||
| mA measure, in circuit |
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| Loop power |
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| mA source |
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| DCV measure |
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| DCV source |
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| mA scaled output |
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| mA in / out |
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Environmental Specifications | |
| Diameter of measurable conductor | 0.177” or 4.5 mm max |
| Operating temperature | -10 to 50 ºC |
| Storage Temperature | -25 to 60ºC |
| Operating Humidity | < 90% @ <30 ºC, < 75% @ 30 to 55ºC |
| Operating Altitude | 0 to 2000 m |
| IP Rating | IP 40 |
| Size | 44 x 70 x 246 mm (2 7/8 x 5 ¾ x 11 5/8 in) |
| Weight | 410 g, (14.4 oz) |
| Vibration | Random 2 g, 5 to 500 Hz |
| Shock | 1 meter drop test (except the jaw) |
| EMI/RFI | Meets EN61326-1 Note: For current measurement w/ JAW, add 1mA to specification for EMC field strengths of 1V/m up to 3V/m. |
| Temperature Coefficient | 0.01% ºC (<18ºC or > 28ºC) |
| Power, battery life | (4) AA 1.5 V Alkaline, IEC LR6, 12 hours in mA source into 500 ohms |
| Warranty | Three years for electronics one year for cable and clamp assembly |
Functional Specifications | |
| mA measurement (Measured by clamp) 771/772/773 | Resolution and Range: 0 to 20.99 mA Accuracy: 0.2%+2 counts Resolution and Range: 21.0 mA to 100.0 mA Accuracy: 1% + 5 counts |
| mA measurement (Measured in series with test jacks) 772/773 | Resolution and Range: 0 to 24.00 mA Accuracy: 0.2% + 2counts |
| mA source (Maximum mA Drive: 24 mA into 1,000 ohms) | Resolution and Range: 0 to 24.00 mA Accuracy: 0.2% + 2counts |
| mA simulate (Maximum voltage 50 V dc) | Resolution and Range: 0 to 24.00 mA |
| Voltage source (2 mA maximum drive current) | Resolution and Range: 0 to 10.00 V dc Accuracy: 0.2% + 2counts |
| Voltatge Mesaure | Resolution and Range: 0 to 30.00 V dc Accuracy: 0.2% + 2counts |
The Fluke 773 mA process clamp meter is supplied with the following;
- Four AA alkaline batteries (installed)
- Soft carrying case
- TL75 test leads
- AC 72 detachable clip
- TL 940 mini hook test leads
- Instruction sheet
- Hanging tool with hook and loop strap




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