Fluke HART 744 User Manual

Calibrating a Supported HART Transmitter

17

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 

.

 

 

pe16s.bmp

2.  Press 

 to load the mA value being measured by

the calibrator into the dialog box.

3.  Press 

 to trim the low analog output point.

4.  To trim the high analog output point, repeat steps 2

and 3, following the prompts on the display.

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 

.

 

 

pe17s.bmp