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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 |
Application |
How it saves time and 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 extension 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. ve 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 |
Source and measure VDC |
Troubleshoot voltage input and output devices. |
Measure presence of 24V loop power. Measure 1 to 5 or 0 to 10V process signals. Test chart recorders |
4 to 20 mA In/out |
Dual channel mA source and measurement for troubleshooting |
Source 4 to 20 mA signals into valves and mA signal conditioners and simultaneously measure 4 to 20 mA positioning output signals. |
4 to 20 mA scaled output |
Scaled mA output provides a mA signal output representative of the measured mA value |
Connect a logging DMM and log the mA signal without breaking the loop |
Loop power supply |
Power a transmitter |
Substitute testing of the installed 24V loop power supply. Power a transmitter and measure its mA output signal 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 |
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 The 773 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
- 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?
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Fluke-771 |
Fluke-772 |
Fluke-773 |
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Non-contact mA loop measurement |
Integrated mA loop troubleshooting |
Advanced process troubleshooting |
| mA measure, jaw |
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| 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
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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
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Resolution and Range: 0 to 24.00 mA
Accuracy: 0.2% + 2counts |
mA source (Maximum mA Drive:
24 mA into 1,000 ohms)
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Resolution and Range: 0 to 24.00 mA
Accuracy: 0.2% + 2counts |
mA simulate
(Maximum voltage 50 V dc)
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Resolution and Range: 0 to 24.00 mA
Accuracy: 0.2% + 2counts
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| 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 |
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| Modèle | Informations pour la commande | Prix courants | | Fluke 773 |
Milliamp Process Clamp Meter
Included accessories:
- 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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| Sur Demande |
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