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1
Introduction
The Fluke 709 Precision Loop Calibrator and 709H Precision
HART Loop Calibrator (the Product or the Calibrator) can be used
for installation, calibration, and troubleshooting of field
transmitters, valves, and other control system components at
process plants. Primary functions are source and measure mA
signals in the 0 mA to 24 mA range. The Product can also produce
24 V dc loop power.
The 709H includes HART communication functionality and
supports a select set of HART universal and common-practice
commands. The Product can be used as a loop calibrator or basic
function communicator.
The 710 has all the functions of the 709H plus test functions for
HART smart control valves.
Table 1 is a list of features available by model number.
Table 1. Model Features
Feature 709 709H 710
Current measurement, sourcing, and a selectable 24 V supply
•••
30 V dc measurement
•••
Valve test capability
•••
Output step and ramp
•••
Large backlight display
•••
Digital selection knob with selectable decade control for easy data entry
•••
Interactive menus
•••
Selectable English or German user interface
••
A selectable HART 250 Ω loop resistor
••
Communicator mode reads basic device information, does diagnostic tests, and can be used to trim
the 4-20 mA output of most HART-enabled transmitters.
••
Supports test functions for HART smart control valves
•
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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