Instruction manual

Varec, Inc. 37

7532 Radar Tank Gauge

6.3.2 Unlocking configuration mode

If an attempt is made to change parameters when the device is locked, the user is

automatically requested to unlock the device:

Function “unlock parameter” (0A4):

By entering the unlock parameter (on the display or via communication)

100 = for HART devices

the 7532 RTG is released for operation.

Hardware unlock:

After pressing the keys at the same time, the user is asked to enter

the unlock parameter.

100 = for HART devices.

Table 6-7: Hardware Unlock

Caution! Changing certain parameters such as all sensor characteristics, for

example, influences numerous functions of the entire measuring system,

particularly measuring accuracy. There is no need to change these parameters

under normal circumstances and consequently, they are protected by a special code

known only to the Varec service organization. Please contact Varec, Inc. if you have

any questions.

6.3.3 Factory settings (Reset)

Caution! A reset sets the device back to the factory settings. This can lead to an

impairment of the measurement. Generally, you should perform a basic setup again

following a reset.

A reset is only necessary if the device...

• ... no longer functions

• ... must be moved from one measuring point to another

• ... is being uninstalled /put into storage/installed

and



press simultaneously



Please enter unlock code and confirm

with



–

and