Fluke originally combined a 4-20 mA loop calibrator and a multimeter to give process technicians double the power in one tool, the original Fluke 787. Now Fluke made it even better - the ultimate loop calibration multimeter - the Fluke 789 ProcessMeter. The Fluke 789 has a display that's not only twice as large, but also twice as bright with two levels of backlighting. With its built-in, selectable 250 ohm HART® resistor, it eliminates the need to carry a separate resistor with you and behaves when connecting to a smart transmitter. Now process calibration technicians can do a lot more while carrying a lot less.
Specifications
Specifications
Current measurement
Range
0-1 A AC or DC
Resolution
1 mA
Accuracy
0.2% + 2 LSD (DC)
Range
0-30 mA
Resolution
0.001 mA
Accuracy
0.05% + 2 lSD
Current sourcing
Range
0-20 mA or 4-20 mA
Resolution
0.05% of span
Drive capability
24 V Compliance or 1200 Ω @ 20 mA
Frequency
to 19.999 kHz, 0.005% + 1 LSD
Continuity
Beeps for resistance < 100 Ω
Voltage measurement
Range
0-1000 V AC (true-rms) or DC
Resolution
0.1 mV to 1.0 V
Accuracy
0.1% Rdg + 1 LSD (VDC)
Resistance measurement
to 40 MΩ, 0.2% + 1 LSD
Diode test
2.0 V shoes diode voltage drop
Display current and % of span
Yes
Auto Step, Auto Ramp
Yes
Environmental Specifications
Operating temperature
-20°C to 55°C
Storage temperature
-40°C to 60°C
Humidity (without condensation)
95% up to 30°C 75% up to 40°C 45% up to 50°C 35% up to 55°C
Temperature coefficient
0.05 x (specified accuracy) per °C (for temperatures < 18°C or > 28°C)
Safety Specifications
Electrical safety
Designed in accordance with IEC 1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No 1010.1-92
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