Correcting Electrode Connection Faults - Emerson Mobrey Hydratect 2462 Reference Manual

Reference Manual
24625020, Rev AA
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6.2.2

Correcting electrode connection faults

Correction procedure
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Electronics Servicing
Fit a new logic card and a new power supply card, securing these with the threaded
pillars and screws removed in step 5.
Re-fit the connectors to the power supply and logic cards, ensuring the
connections are made correctly to each channel.
Switch on the external supplies to the Control Unit, and then check the system as
described in Section 4: System
Switch off the external power supplies to the Hydratect 2462 Electronics Control
Unit ("Control Unit").
Loosen the cable gland on the electrode cover.
Draw back the cable cover to reveal the electrode connections.
Check the cable connections.
Tighten any connection that is loose. Re-connect any lead that has broken off.
Remember that all connections to the electrode must be made individually.
Do not twist any two (or more) wires together. The ground and ground-sense, for
example, must be made to separate ground screws.
Replace the cable cover and secure.Tighten the cable gland.
Switch on the external power supplies to the Control Unit, and then check the
system as described in Section 4: System
Switch off the external power supplies if there is still a connection fault.
Undo the two screws securing the front panel of the Control Unit, and then
carefully withdraw the front panel from the case.
Check the electrode connections to the logic card.
Tighten any loose connections and remake any broken connection.
Replace and secure the front panel.
Switch on the external power supplies to the Control Unit, and then check the
system as described in Section 4: System
If there is still a connection fault, it must be located in the cable itself.
Switch off the external power supplies.
Testing.
Testing.
Testing.
Electronics Servicing
March 2017
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