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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 773 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 773 Clamp Meters will help you:
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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Source, simulate and measure mA signals in circuit (break the loop)
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Confirm non-contact measurement. ve the next tool in hand for troubleshooting (source simulate)
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Eliminates the need to return to the shop to get a loop calibrator for troubleshooting after finding a bad signal with non-contact measurement
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Source and measure VDC
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Troubleshoot voltage input and output devices.
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Measure presence of 24V loop power. Measure 1 to 5 or 0 to 10V process signals. Test chart recorders
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4 to 20 mA In/out
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Dual channel mA source and measurement for troubleshooting
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Source 4 to 20 mA signals into valves and mA signal conditioners and simultaneously measure 4 to 20 mA positioning output signals.
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4 to 20 mA scaled output
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Scaled mA output provides a mA signal output representative of the measured mA value
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Connect a logging DMM and log the mA signal without breaking the loop
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Loop power supply
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Power a transmitter
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Substitute testing of the installed 24V loop power supply. Power a transmitter and measure its mA output signal for troubleshooting.
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Dual backlit display with both mA measurement and percent of 4 to 20 mA span
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Clear measurement presentation
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Allows quick measurement evaluation
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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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Features
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Specifications
Environmental Specifications
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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
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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
Accuracy: 0.2% + 2counts |
Voltage source (2 mA maximum drive current) | Resolution and Range: 0 to 10.00 V dc Accuracy: 0.2% + 2counts |