The 789 features a 24 Volt loop supply which reduces the need for having a separate power supply when perfroming offline transmitter testing. And with it�s built in selectable 250 Ohm Hart resistor, you don�t need to carry a separate resistor with you. Now process technicians can carry a lot less while doing a lot more.

Features of the Fluke 789

24 Volt Loop power supply
Large dual display
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 percent and 100 percent buttons to switch between 4 and 20 mA sourcing for a fast span check
Easily replaceable externally accessible fuses
Infrared port to process data in FlukeView Forms (V2.1) software
True RMS
0.1 percent dc voltage accuracy
0.05 percent dc current accuracy
Frequency measurement to 20 kHz
Minimum, Maximum, Average, Hold, and Relative modes
Continuity Beeper and Diode Test
Simultaneous mA and percent of scale readout
20 mA DC current source / loop calibrator / simulator
Manual Step (100 percent, 25 percent, Coarse, Fine) plus Auto Step and Auto Ramp
Externally accessible battery

Safety Conformance

Meets 1000 Volt EN61010-1 CAT III standards and 600 Volt EN61010-1 CAT IV standards.

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 �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

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

600 g (13 oz.)

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