Don’t break the loop on 4-20 mA signal measurements and save time. Do these troubleshooting time wasters sound familiar?
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
The Fluke 772 can eliminate many of the above time wasters. Use the Fluke 772 to source and simulate 4-20mA loops signals as well as measuring loop signals without interupting your process.
How the Fluke 772 makes like easier:
Milliamp Clamp Features
Application
How it saves Time & Money
Measure mA signals for PLC and control system analog I/O without breaking the loop
Measures low level DC current
Correlate process indication with real physical value
Measure output signals from transmitters without breaking the loop
Maintain and troubleshoot process and automation equipment without breaking the loop
No disruption to the process
Detachable clamp with extention cable
Measurements in tight locations
Enables measurements in difficult situations
Source, simulate, and measure mA signals in circuit (break the loop)
Confirm non-contact measurement. Have the next tool in hand for troubleshooting (source simulate)
Eliminates the need to return to the shop to get a loop calibrator for troubleshooting after finding a bad signal with non-contact measurement
Loop power supply
Power a transmitter
Substitute testing of the installed 24V loop power supply. Power a transmitter and measure its mA output for troubleshooting
Dual backlit display with both mA measurement and percent of 4 to 20 mA span
Clear measurement presentation
Allows quick measurement evaluation
Measurement Spotlight
Illuminates hard to see wires in dark enclosures
Measurement process is easier and quicker
Measure up to 99.9 mA range non-contact
Wide range of measurements
Measures 10 to 50 mA signals in older control systems
Automatic power off
After 15 minutes and 2 minute automatic off for backlight and spotlight
Saves battery life
Specifications
Fluke 772 Environmental Specifications:
Diameter of measurable conductor
0.177" or 4.5 mm max
Operating Temperature
-10 to 50 °C
Storage Temperature
-25 to 60 °C
Operating Humidity
<90% @ <30°C, <75% @ 30 to 55°C
Operating Altitude
0 to 2000m
IP Rating
IP 40
Size
44 x 70 x 246 mm (2 7/8 x 5 3/4 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 1 mA to specification for EMC field strengths of 1V/m up to 3V/m.
Temperature Coefficient
0.01% °C
Power, Battery Life
(4) AA 1.5V Alkaline, IEC LR6, 12 hours in mA source into 500 ohms
Warranty
Three years for electronics One year for cable & clamp assembly
Fluke 772 Functional Specifications:
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
mA Measurement (Measured in series with test jacks)
Resolution and Range: 0 to 24.00 mA Accuracy: 0.2% + 2 counts
mA Source (Maximum mA Drive: 24 mA into 1,000 ohms)
Resolution and Range: 0 to 24.00 mA Accuracy: 0.2% + 2 counts
mA Simulate (Maximum voltage 50 V dc)
Resolution and Range: 0 to 24.00 mA Accuracy: 0.2% + 2 counts
What’s the difference between the Fluke 771, Fluke 772 and Fluke 773 models?
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