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Suggested test tools
Calibrating a HART
smart pressure transmitter
Pressure transmitter manufacturers have improved the accuracy
and technology designed into these smart pressure measurement
devices. Many conventional calibration tools have become inad-
equate or simply unable to test and calibrate these high accuracy
pressure transmitters. Better test solutions are required.
Verifying and documenting the performance and adjusting
a HART smart pressure transmitter can require a bucket full of
tools. Performing this task with a HART enabled calibrator like
the Fluke 754 simplifies the task and reduces what you need
to carry.
Before going to the field:
install the pressure module adapter
to the hand pump with thread seal. Once the adapter is properly
installed on the pump, changing modules to different pressure
ranges is a snap, no tools required.
To get the accuracy needed:
to test these new high accuracy
transmitters match the pressure measurement standard range
closely to the device tested. For example, use a 100 psi
pressure module to calibrate and test a transmitter ranged at
100 psi. Industry standards suggest the measurement standard
should be 4-10 times more accurate than the device being tested
so best-in-class accuracy is required.
The Fluke 754 utilizes the 750P series pressure modules and
has built-in HART functionality to enable smart trims on trans-
mitters. It can also document transmitter performance before and
after adjustment and calculate pass/fail errors.
Fluke 754 Docu-
menting Process
Calibrator-HART
See pg 5
Fluke 750P Series
Pressure Modules
See pg 12
Fluke 700G
Precision Pressure
Gauge Calibrator
See pg 13
Fluke 700PTP-1
Pneumatic Test Pump
See pg 23
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Pressure Applications