Ametek JOFRA CTC-1200 A - 3 Repairs; Trouble Shooting

123200 03 26-03-2004 17
3.0 Repairs
Warning
The calibrator must be switched off before any attempt is
made to service the instrument.
Note…
Ametek Denmark’s liability ceases if:
• Parts are replaced/repaired using spare parts which are
not identical to those recommended by the manufacturer.
• non-original parts are used in any way when operating
the instrument.
Ametek Denmark’s liability is restricted to errors which
originated in the factory.
3.1 Trouble shooting
Error: No light in display
Likely cause: Solution:
Defective fuses:
Supply to CONTROLLER PCB:
Check fuses in the mains inlet.
Check fuses on the POWER PCB
inside the calibrator.
Check the supply – minimum 22V
on CN1 terminal 1(+) and CN1
terminal 2(-).
• If supply voltage is 22V or
higher, replace CONTROLLER
PCB and adjust and re-
calibrate the unit.