Process Calibrator Fluke 789

The Fluke 789 has a 24-Volt loop supply reducing the need for taking a separate power supply when doing offline transmitter testing. And with its built-in, selectable 250-Ohm Hart® resistor, it also eliminates the need to carry a separate resistor with you. Now process technicians can do a lot more while carrying a lot less.

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Features

Features of the Fluke 789

24 V Loop power supply
Very large dual display
Enhanced backlight with 2 brightness settings
1200 ohm drive capability on mA source
HART mode setting with loop power and a built-in 250 ohm resistor
0% and 100 % buttons to toggle between 4 and 20 mA sourcing for a quick span check
Externally accessible fuses for easy replacement
Infrared-port to process data in FlukeView Forms (V2.1) software

Specification

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 shows diode voltage drop

Display current and % of span

Yes

Auto step, auto ramp

Yes

Environmental Specifications

Operating Temperature

-20 ºC to 55 ºC

Storage Temperature

-40 ºC to 60 ºC

Humidity (Without Condensation)

	95% up to 30 ºC
	75% up to 40 ºC
	45% up to 50 ºC
	35% up to 55 ºC

Temperature Coefficient

0.05 x (specified accuracy) per ºC (for temperatures < 18 ºC or > 28 ºC)

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

Overvoltage category

	IEC 1010-1 CAT III 1000 V
	IEC 1010-1 CAT IV 600 V

Maximum voltage

1000 V rms

Mechanical & General Specifications

Size

50 x 100 x 203 mm (1.25″ H x 3.41″W x 7.35″ L)

Weight

610 g (1.6 lbs)

Batteries

4 AA Alkaline batteries

Warranty

3 years

Battery Life

140 hours typical (measurement), 10 hours typical (sourcing 20 mA)

Shock & Vibration

	Random, 2 g, 5-500 Hz
	1 meter drop test

Downloads

Download Data Sheet

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Process Calibrator Fluke 789

Features of the Fluke 789

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