Fluke combined a loop calibrator and a DMM to give process
technicians double the power in one tool (the Fluke 787).
Now we made it even better - the ultimate loop calibration
multimeter - the Fluke 789 ProcessMeter. The 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.
Now process technicians can do a lot more while carrying a lot less.

Features:
• DMM and Loop Calibrator with
• 24 V Loop power supply
• HART mode setting with loop power (adds 250 ohm resistor)
• 100 % larger dual display
• 1,200 ohm drive capability on mA source
• Enhanced backlight with two brightness settings
• 0-100 % mA Span Check buttons to toggle between 4 and 20 mA
• Infrared I/O port for use with FlukeView Forms Software
• Externally accessible fuses for easy replacement
• DMM designed to meet 1000 volt IEC 1010 CAT III standards
• Precision 1000 V, 440 mA true-rms digital multimeter
• Frequency measurement to 20 kHz
• Min/Max/Average/Hold/Relative modes
• Diode Test and Continuity Beeper
• Simultaneous mA and % of scale readout
• 20 mA dc current source/loop calibrator/simulator
• Manual Step (100 %, 25 %, Coarse, Fine)
plus Auto Step and Auto Ramp
• Externally accessible battery for easy battery changes
• IR communication port allows data to be logged to optional
• FlukeView Forms Software for graphical analysis and reporting

Technical Specifications:

Measurement Function
V dc	Range and Resolution 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V Best Accuracy (% of reading + LSD) 0.1 % + 1
V ac (true-rms)	Range and Resolution 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V Best Accuracy (% of reading + LSD) 0.7 % + 2
mA dc	Range and Resolution 30.000 mA Best Accuracy (% of reading + LSD) .05 % + 2
A dc	Range and Resolution 1.000 A (0.440 A continuous) Best Accuracy (% of reading + LSD) 0.2 % + 2
A ac	Range and Resolution 1.000 A (0.440 A continuous) Best Accuracy (% of reading + LSD) 1 % + 2
Resistance	Range and Resolution 400.0 Ohms, 4.000 k, 40.00 k, 400.0 k, 4.0 M, 40 M Best Accuracy (% of reading + LSD) 0.2 % + 1
Frequency (0.5 Hz to 20 kHz)	Range and Resolution 199.99 Hz, 1999.9 Hz, 19.999 kHz Best Accuracy (% of reading + LSD) .005 % + 1
Diode Test	Range and Resolution 2.000 V (shows diode voltage drop) Best Accuracy (% of reading + LSD) 2 % + 1
Continuity	Range and Resolution Beeps for resistance < approx. 100 ohms

Output Function
DC Current Output (Internal battery operation)	Range and Resolution 0.000 to 20.000 mA or 4.000 to 20.000 mA (selectable at power-up) Over-range to 24.000 mA Drive Capability (% of span) 24 V compliance, or, 1,200 Ohms, @ 20 mA Accuracy .05 %
DC Current Simulate (Ext. 24 Volt loop supply)	Range and Resolution 0.000 to 20.000 mA or 4.000 to 20.000 mA, (selectable at power-up) Over-range to 24.000 mA Drive Capability (% of span) 1000 Ohms, @ 20 mA Accuracy .05 %
24 V Loop Supply	Range and Resolution Minimum 24 V Drive Capability (% of span) 250 Ohms @ 20 mA Accuracy > 24 V
Current Adjustment Modes	Range and Resolution Manual: 0.001 mA, 0.1 mA, 25 % and 100 % step Automatic: Slow Ramp, Fast Ramp, 25 % step

*Temperature range of 18 °C to 28 °C, for one year after calibration

General Specifications
Maximum voltage applied between any jack and earth ground:	1000 V RMS
Storage temperature:	-40 °C to 60 °C
Operating temperature:	-20 °C to 55 °C
Temperature coefficient:	0.05 x (specified accuracy) per °C (for temperatures < 18 °C or > 28 °C)
Relative humidity	95 % up to 30 °C; 75 % up to 40 °C; 45 % up to 50 °C; 35 % up to 55 °C
Vibration:	Random, 2 g, 5-500 Hz
Shock:	1 meter drop test
Safety:	Designed in accordance with EN61010, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No. 1010..1-92 Over-voltage Category III
Size:	50 mm H x 100 mm W x 203 mm L (1.97 in H x 3.94 in W x 8.00 in L)
Weight:	600 g (1.3 lbs)
Battery:	Four AA alkaline batteries
Battery life:	140 hours typical (measurement), 10 hours typical (sourcing 12 mA)
Warranty:	3 years