7 Maintenance
The Auxiliary supply should be isolated prior to opening the enclosure and should
not be reconnected until the enclosure lid is secured.
7.1 Technical assistance
In case of technical assistance please contact either the supplier of the NX12 or
Nortech. If a malfunction occurs, please contact Nortech.
Please see www.nortechonline.co.uk for contact details.
7.2 Communications test
Press the button (SW1) at the top left of the PCB. Confirm that the RTU
communicates successfully with the iHost system.
7.3 I/O tests
For each input connected to the NX12, confirm that the correct status data and the
desired date/time events are being reported to the iHost system.
7.4 Replacing the Battery
When replacement is necessary, contact Nortech for a replacement part.
There are two types of battery, depending on the PCB hardware version:
To replace the battery, unplug the old battery pack and plug in the new pack.
Re-test the NX12 unit for correct operation.
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