Siemens SITRANS P DS III - Locking of Buttons and Functions

Operation
6.5 Local operation
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
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Requirement
You are familiar with the correct operation of the transmitter and the associated safety notes.
Zero point calibration for gauge pressure transmitter
To calibrate the zero point, proceed as follows:
1. Pressurize the transmitter.
2. Set mode 7.
3. Press the [↑] und [↓] buttons simultaneously for 2 seconds.
4. Save with the [M] button.
Zero point calibration for absolute pressure transmitter
Note
You need a reference pressure known to you which lies within the measuring limits.
To calibrate the zero point, proceed as follows:
1. Create the reference pressure.
2. Set mode 7.
3. Set the reference pressure on the display.
4. Save with the [M] button.
6.5.5
Locking of buttons and functions
Introduction
In mode 10 you can lock the functions which are always possible using the buttons. An
example of locking is the saving of stored parameter settings.
Requirement
Note
Check the measured value display to establish that this indicates the desired setting.