Selection Of The Physical Unit; Bar Graph; Sensor Trim - Siemens SITRANS P300 Operating Instructions Manual

Operating functions via HART

7.15 Selection of the physical unit

7.15 Selection of the physical unit
Introduction
You can use this function to select a unit from a table with predefined units.
Description
The only units available will be those of the device variable that was mapped as the Primary
Variable (PV).
The unit can be set separately for the display and for HART communication. You can also
choose to link the setting of the two units.
See also
Unit (Page 6-33)
7.16

Bar graph

Description
You can use this to switch on the "Bar graph" function in the device display, so that it
alternates with the unit display. When the device is delivered, the "Bar graph" function is
switched off.
See also
Elements of the digital display (Page 6-4)
7.17

Sensor trim

7.17.1 Sensor trim
Description
The sensor trim can be used to set the characteristic curve of the transmitter at two sensor
trim points. The results are then correct measured values at the sensor trim points. The
sensor trim points can be selected as any points within the nominal range.
Devices that are not turned down prior to delivery are trimmed at 0 bar and the upper limit of
the nominal range; devices that are turned down prior to delivery are trimmed at the lower
and upper limits of the set pressure measuring range.
7-22
SITRANS P300 with HART communication
Operating Instructions, 06/2005, A5E00359579-02