Setting/Adjusting The Start Of Scale Value - Siemens SITRANS P DS III Operating Instructions Manual

Note
If the preset measuring limits are exceeded or fallen below by more than 20% during
adjustment, the resulting current cannot be set above these limits.
With a marked elevation of the zero point, the full scale value must therefore previously be
reduced such that it still lies within the permitted range after elevation of the zero point.
See also
Unit (Page 100)
6.5.3.2

Setting/adjusting the start of scale value

NOTICE
Inadvertent adjustment of parameters on devices without display or without visible display
Key lock is canceled if you press the [M] key for longer than 5 seconds, see chapter
"Releasing key lock or function lock (Page 96)". In the case of a device without display or
without a visible display, you could inadvertently change parameters.
• Always press the [M] key for less than 5 seconds.
Introduction
Set or adjust the start of scale value of the pressure transmitter in mode 2.
You can also adjust the start of scale value or the full scale value separately as well as
adjust both these values one after the other.
Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have selected a reference pressure that corresponds to the start of scale value and is
within the permissible tolerance range.
The transmitter is in "Pressure" measuring mode.
Setting start of scale value
To set the output current of the start of scale value to 4 mA, proceed as follows:
1. Create the reference pressure.
2. Set mode 2.
3. Set the start of scale value to 4 mA.
4. Save with the [M] button.
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09
Operation
6.5 Local operation
83