Vega D90 Profibus PA Bedienungsanleitung PDF herunterladen (Seite 32)

32 Pressure transmitter D90 (Profibus PA)

Instrument modification

6 Instrument modification

6.1 Exchange of adjustment mod-

ules in the processing unit

The modular construction of the processing

unit allows retrofitting, interchange and re-

moval of the adjustment and display module.

Data previously saved (e.g. adjustment val-

ues) are not stored in the adjustment module

but in an EEPROM of the electronics module

and readjustment is therefore not necessary.

The connection of the modules is made via a

4-pole plug connection.

Exchange of the adjustment module

Removal of the adjustment module

• Separate processing unit from the power

supply.

• Remove the screws on the upper side of

the housing and remove the cover or the

display module.

• Disconnect the cables from the terminals,

and if applicable, pull out the plug con-

nection of the display module.

• Remove the two screws of the adjustment

module.

• Remove adjustment module and pull out

plug connection.

Insertion of an adjustment module

• Plug the plug connection of the new ad-

justment module into the plug-in socket of

the electronics module.

• Fasten the new adjustment module.

• Reconnect the cables, and if applicable,

also the cable from the display module.

• Replace the cover or the display module

of processing unit.

• Reconnect processing unit to power

supply.

Processing unit

Module without

adjustment

Module for

menu-driven

adjustment

Display

module

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