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promesstec GmbH
I Niedersachsenstraße 4 I D-48465 Schüttorf I Tel.:+49 (0)5923/ 90 229 0 I Fax:+49 (0)5923/ 90 229 29
E-Mail: [email protected] I Internet: www.promesstec.com
7.1 Disassembly and assembly of PCB
Power supply and terminal board PCB
Risk of electric shock!!!
Before removing the rear cover (cap) for the electronics, make sure
that the power is off.
1. Unscrew the rear cover of the meter's housing.
2. Disconnect the connected cables and if
necessary, take them out of the cable entries.
3. Unscrew the four screws holding the power supply
cover sheet along with the PCB.
4. Pull the power supply PCB, including the cover
sheet a little out and disconnect the flat cable
connector carefully.
5. Pull the power supply PCB out of the electronics
cover and replace it with a good one, possibly use
the PCB with another version of the power supply.
6. Connect the flat cable connector and insert the
PCB in the electronics cover in proper orientation.
7. Using four screws, fix the PCB with cover sheet to
the evaluation unit box.
8. Reconnect the cables and screw in the instrument
housing cap.
Display PCB
– replacement
1. Unscrew the front cover with the glass window.
2. Unscrew four fixing bolts.
3. Remove the original electronic board including the
plastic cover and disconnect carefully the flat
cable connector and the button connector.
4. Disconnect the sensor conductors from terminals.
5. Connect the sensor conductors to the terminals of
the new board.
6. Reconnect the button connectors and flat cable
connector.
7. Turn the electronic PCB with display to the
required position (3x ± 90° maximum).
8. Screw in the four fixing screws.
Make sure that the screws are tightened
properly!!!
9. Screw in the front cover with the window.