Siemens SITRANS P Betriebsanleitung PDF herunterladen (Seite 93)

Condition

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:

Set mode 10.

2. Select the desired lock mode.

3. Confirm the lock mode with the [M] button.

6.5.10 Releasing key lock or function lock

Releasing key lock

WARNING

In the case of devices used for safety-relevant applications, only authorized personnel may

release the key lock, e.g. overflow protection.

To release a set key lock (LA, LO, LS) using buttons, proceed as follows:

Press the [M] button for 5 seconds.

Releasing the write protection

To release a write protection for HART (L) using buttons, proceed as follows:

Press the [M] button for 5 seconds.

6.5.11

Flow rate measurement (only differential pressure)

Introduction

The characteristic curve representing the relationship between the output current and input

pressure can be adjusted in mode 11. Adjust the root application point in mode 12.

You can select the following characteristic curve types of the output current:

Operation

6.5 Local operation

SITRANS P, DS III series with HART

Operating Instructions, 09/2012, A5E00047092-08 91

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Siemens SITRANS P Betriebsanleitung Seite 93