Function
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3.5.2 Automatic self test
All supply voltages are continuously monitored. The following tests are continuously carried
out in the background:
•E-KE connection
• Temperature monitoring of coupling and locating current injector
A self test is automatically run at 24-hour intervals.
During the automatic self test, the alarm relays K1 (11-12-14) and K2 (21-22-24) are not swit-
ched. K3 will not be switched either.
3.5.3 Manual self test
The self test is started via the TEST button of the ISOMETER®.
The following tests are only carried out in the manual self test mode:
• Internal flash
•CPU register
•Watchdogs
• Oscillator
• Restart of the device including re-initialisation and recalibration
• Connection monitoring system
During the manual self test, all alarm relays are switched.
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