Releasing Key Or Function Lock; Characteristic Curve - Siemens SITRANS P300 Operating Instructions Manual

Operation
6.5 Local operation
Procedure
To lock the keys, proceed as follows:
1. Set mode 10.
2. Select the desired lock mode.
3. Confirm the lock mode by pressing <MODE>.
See also
Operating via keys (Page 6-12)
6.5.11

Releasing key or function lock

Releasing key lock
To release a set key lock (LA, LO, LS) with the keys, proceed as follows:
Press <MODE> for 5 seconds.
Remove write protection
To release a write protection for HART (L) using the keys, proceed as follows:
Press <MODE> for 5 seconds.
See also
Operating via keys (Page 6-12)
Monitoring of current saturation (Page 7-30)
6.5.12

Characteristic curve

Introduction
The characteristic curve representing the relationship between the output current and input
pressure can be adjusted in mode 11.
Set "lin" with gauge and absolute pressure transmitters, as other characteristic curves are
reserved for differential pressure.
Requirement
You are familiar with the correct operation of the transmitter and the associated safety
information.
6-30
SITRANS P300 with HART communication
Operating Instructions, 06/2005, A5E00359579-02