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VEGA POINTRAC 31 8_16 mA_HART - four-wire With SIL qualification User Manual

Page 26

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7 Set up with the display and adjustment module

POINTRAC 31 • 8/16 mA/HART - four-wire

43388-EN-131119

With this menu item you safeguard the sensor parameters against

unauthorized or unintentional modifications.
To avoid possible errors during parameterization in a non-safe user

environment, a verification procedure is used that makes it possible

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

parameters must be verified 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 verified. For

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

is used to check the character respresentation and the communica-

tion channels.
Confirm if the two character strings are identical. The verification texts

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

In a second step, all modified safety-relevant parameters are listed.

Confirm the modified values.

If the described process of parameter adjustment was run through

completely and correctly, the instrument will be locked and hence

ready for operation.

Otherwise the instrument remains in the released and hence unsafe

condition.

The main menu is divided into five sections with the following func-

tions:

Setup: Settings, e.g. for measurement loop name, isotope, applica-

tion, background radiation, adjustment, signal output

Lock setup - adjustment

Main menu