Output Trim; Sensor Trim - Fluke HART 744 User Manual

Output Trim

An Output Trim adjusts the tranmitter's Output stage. You
can perform an Output Trim on both generic and
supported transmitters.
To perform an Output Trim:
1. From the Active Device screen Press the
softkey, followed by
Output Trim
2. Press to load the mA value being measured by
Fetch
the calibrator into the dialog box.
3. Press to trim the low analog output point.
Send
4. To trim the high analog output point, repeat steps 2
and 3, following the prompts on the display.
Service
.
pe16s.bmp
Documenting Process Calibrator HART Mode
Calibrating a Supported HART Transmitter

Sensor Trim

You can only perform a Sensor Trim on a supported
transmitter. A Sensor Trim adjusts the Input stage of a
HART transmitter. If your application does not use the
Output stage of the transmitter, Sensor Trim is the only
adjustment you need to make.
A Sensor Trim may involve one or more trim points. This is
controlled by the transmitter's software. You can only
perform a Sensor Trim on a supported transmitter.
To perform a Sensor Trim, proceed as follows:
1. From the Active Device screen, press the
softkey, followed by
Sensor Trim
Service
.
pe17s.bmp
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