Promag 50
Troubleshooting
Hauser
89
Wall-mount housing: removing and installing printed circuit boards
#
Warning!
• Risk of electric shock!
Exposed components carry dangerous voltages. Make sure that the power supply is switched off
before you remove the cover of the electronics compartment.
• Risk of damaging electronic components (ESD protection). Static electricity can damage electronic
components or impair their operability. Use a workplace with a grounded working surface
purpose-built for electrostatically sensitive devices!
• If you cannot guarantee that the dielectric strength of the device is maintained in the following
steps, then an appropriate inspection must be carried out in accordance with the manufacturer’s
specifications.
• When connecting Ex-certified devices, see the notes and diagrams in the Ex-specific supplement
to these Operating Instructions.
"
Caution!
Use only original Hauser parts.
1.
Switch off power supply.
2.
Remove the screws and open the hinged cover (1) of the housing. Remove screws of the
electronics module (2).
3.
Then push up electronics module and pull it as far as possible out of the wall-mounted housing.
4.
Disconnect the following cable plugs from amplifier board (7):
– Electrode signal cable plug (7.1) including S-DAT (7.3).
– Plug of coil current cable (7.2). To do so, loosen the plug locking of the coil current cable
and gently disconnect the plug from the board, i.e. without moving it to and fro.
– Ribbon cable plug (3) of the display module.
5.
Remove the screws and remove the cover (4) from the electronics compartment.
6.
Remove the boards (6, 7, 8): Insert a suitable tool into the hole (5) provided for the purpose
and pull the board clear of its holder.
7.
Installation is the reverse of the removal procedure.
