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March 2021
Page 111 of 143
59812-K007 Rev 17
Business Confidential
Figure 170
Detector Status Screen Watchdog Fault
Identify the fault being indicated, in this case a Watchdog fault.
Alternatively an inspection of the engine event log, see section 3.6, will list the event:
Watchdog Fault Detector X
Having established which detector is in fault the following steps should be followed.
1.
Examine the Event Log to establish the frequency at which the Watchdog is occurring.
If multiple Watchdogs are recorded in the event log the detector should be replaced.
If a single Watchdog is recorded in the event log Accept and Reset the Control Unit to clear the
fault. No further action is required.
5.2.12
Remote Display Unit Time and Date Incorrect.
Changing the time and date maintained in the Remote Display Unit is performed at Engineer access level
via the Set Time / Date Screen, see Figure 38. When accessing the Time / Date screen the current date
and time will be displayed. If the battery used to maintain the real time clock reaches its end of life, the
correct time and date are no longer maintained, and the display will show an incorrect time and date. A
typical display is shown below.
Figure 171
RTC Battery Failure
The RDU uses a standard CR1220 3v Lithium Coin Battery (12.5mm diameter)
Figure 172
CR1220 Battery
To ensure reliability and battery life we recommend the use of a quality brand.