Siemens SITRANS P DS III Operating Instructions Manual page 95

Lock mode
LS
L
Note
If you want to select the LO or LS lock, we recommend you first select the measured value
display of "Current" in "mA" or "%" in mode 13. Otherwise, a change in the output variable
using the [↑] and [↓] buttons is not detected.
If the blind cover is provided, the LS lock mode is effective, i.e. only the zero point and the
span can be changed. If you continuously operate the device with the blind cover, ensure
that the LS lock mode is constantly set.
Requirement
You are familiar with the correct operation of the transmitter and the associated safety notes.
Note
In the measured value display function, check whether the desired setting is displayed.
Procedure
To disable the buttons, proceed as follows:
1. Set mode 10.
2. Select the desired lock mode.
3. Confirm the lock mode with the [M] button.
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09
Meaning
Keys on the transmitter are partially locked.
Exception:
Setting start of scale value
•
Setting full scale value
•
Releasing key lock
•
The device can be operated by means of HART communication.
Write protection
Operation via keys and HART communication is blocked.
Exception:
Releasing key lock
•
Operation
6.5 Local operation
95