EBME Forums Forums Maintenance Service Manuals & Schematics Talley DVT to clear "uncalibrated" error

Dear members&guests,

I have a Talley DVT Synchro machine for repair, during switch ON gives on display "uncalibrated", I already have in possession operator's and service manual in one pdf, but when read the manual, the manual didn't mention how to clear the error and tried also to do pressure calibration(to clear error) still I can't enter in the calibration mode. I think there is something missing on the manual how to enter in calibration mode with the error given.
please can someone give me hints what I can do please, your help is much welcome.

Thanks and good day,
Saviour Muscat

Does it ask for a password?

Anyway, it sounds like it's lost its stored data.

Have you taken a look inside? I'm wondering if there's an on-board battery that needs replacing - or a NVRAM that needs resetting. Does the manual make any such mention?

Thank You for your help Geoff,

In the mean contacted the local agent and will see

Regards,
tech84