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Need more hours in your day?
Save time by NOT breaking the loop on 4-20 mA signal measurements.
Are you spending time:
- Taking mA measurements by removing a wire and breaking the loop
- Calling the control room to isolate a loop
- Testing analog input/output on a console
- Troubleshooting devices with mA inputs and outputs
- Repairing intermittent or erratic 4-20 mA loops
- Going back to the shop to get extra tools
If you need more time in your busy day take a good look at the Fluke 771 mA Clamp Meters. It’s designed to save you time, and money, by eliminating time wasting activities. Now you can troubleshoot and repair 4-20 mA loops without breaking the loop or bringing down the system.
Here are some specific ways the Fluke 771 Clamp Meters will help you:
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Milliamp Clamp Features
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Application
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How it saves time and money
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Measure mA signals for PLC and control system analog I/O without breaking the loop.
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Measures low level dc current
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Correlate process indication with real physical value
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Measure output signals from transmitters without breaking the loop
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Maintain and troubleshoot process and automation equipment without breaking the loop
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No disruption to the process
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Detachable clamp with extension cable
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Measurements in tight locations
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Enables measurements in difficult situations
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Measurement Spotlight
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Illuminates hard to see wires in dark enclosures
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Measurement process is easier and quicker
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Measure up to 99.9 mA range non-contact
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Wide range of measurements
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Measures 10 to 50 mA signals in older control systems
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Automatic power off
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After 15 minutes and 2 minute automatic off for backlight and spotlight
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Saves battery life
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Fluke 771 Milliamp Process Clamp Meter
3.5
5
2
2
Basic ammeter...Easily broken
Basic clamp-on ammeter for low voltage applications. Barely even used and a co-worker accidently dropped it from a very short distance causing the plastic hinge piece on the clamp to break...now it is useless until I buy a new clamp. Design is definitely not rugged so handle it with care!
December 4, 2012
Ease of use
Great product to quick milliamp checks on control loops without disrupting the process.
June 1, 2012
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 The 771 mA Clamp Meter features: - 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
What’s the difference between the 77X models?
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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 |
59 x 38 x 212 mm, (2.32 x 1.5 x 8.35 in.) |
| Weight |
260G, (9.1 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
(<18? or > 28?) |
| Power, battery life |
(2) AA 1.5 V Alkaline, IEC LR6, 40 hours typical |
| Warranty |
Three years for electronics
one year for cable and clamp assembly |
| mA measurement (Measured by clamp) |
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 |
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