Product selection guide: mA loop calibrators

Use our product selection guide to find the calibration tool that fits your needs best.
Fluke 772 Milliamp Clamp Meter
Fluke 789 ProcessMeter™
Fluke 772 Milliamp Process Clamp Loop MeterFluke 789 ProcessMeter™
DC current  
Voltage ac/dc1000 V 
Current ac/dc440 mA (1 A) 
Resistance40 MΩ 
Frequency20 kHz 
Duty cycle  
Pulse width  
Continuity with beeper  
Diode test  
4-20 mA loop current as % readout  
Flashlight / torch  
Display hold  
Dual display  
Analog bargraph  
Jaw opening0.177 in (4.5 mm) 
Current range DC0 - 99.9 mA 
Accuracy DC current: ± 5 counts4-20 mA is 0.2 + 5 counts 
Auto off  
CategorySpecialty process 
Min-Max recording  
Auto (touch) hold  
Relative reference  
USB interface  
Source 4-20 mA loop current  
24 V loop supply  
Overmolded case, integrated holster  
Closed case calibration  
Separate battery  
Fuse access  
Automatic power off  
Low battery indication  
Operating temperature range-10 °C to +50 °C 
Warranty3 years 
EN61010-1 CAT III1000 V 
EN61010-1 CAT IV600 V 
True RMS readingsAC 
Basic DC accuracy0.10 % 
Auto / manual ranging  
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