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.
Features
-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
-0.1% dc voltage accuracy
-0.05% dc current accuracy
-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
Safety Conformance
Meets 1000 Volt EN61010-1 CAT III standards and 600 Volt
EN61010-1
CAT IV standards.