Vega SOLITRAC 31 4 … 20 mA_HART - four-wire With SIL qu Bedienungsanleitung PDF herunterladen (Seite 38)

7 Set up with the display and adjustment module

SOLITRAC 31 • 4 … 20 mA/HART - four-wire

43387-EN-131119

You can choose "no" reference value. In this case, the relay output

operates as fail safe relay.

•

None - Relay operates as fail safe relay

•

Electronics temperature

•

Process value

"No" reference value means that the relay output operates as fail safe

relay.

Push the [->] button, to reach the relay settings.

Example for the adjustment of the process value

Firstofallselecttherequestedmode(overllordryrunprotection).

Caution:

Independent of the selected reference value, the relay will deenergize

in case of failure.

With this menu item you safeguard the sensor parameters against

unauthorizedorunintentionalmodications.

To avoid possible errors during parameterization in a non-safe user

environment,avericationprocedureisusedthatmakesitpossible

to detect parameterization errors reliably. For this, safety-relevant

parametersmustbeveriedbeforetheyarestoredinthedevice.In

normal operating condition, the instrument is also locked against

parameter changes through unauthorized access.

For this reason, the instrument is shipped in locked conditon. The PIN

in the delivery status is "0000".

Afterachange,allsafety-relevantparametersmustbeveried.For

this purpose, a character string comparison must be carried out. This

is used to check the character respresentation and the communica-

tion channels.

Conrmifthetwocharacterstringsareidentical.Thevericationtexts

are provided in German and with all other menu languages in English.

Lock setup - adjustment

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Vega SOLITRAC 31 4 … 20 mA_HART - four-wire With SIL qu Bedienungsanleitung Seite 38