Displays and functions
37
The end of sensor lifespan
The lifespan of the electrochemical sensor is 7
years. If the end of the lifespan is reached, this
is signalled by a triple beep every 30 seconds in
connection with blinking of the yellow FAULT
LED. In addition, "End" is shown in the display.
If this happens, replace the alarm immediately.
The acoustic warning signal can be muted for 48 hours by
pressing the Test/Reset button. The yellow FAULT LED continues
to blink and " " is shown in the display.
If the end of the sensor lifespan is signalised for 30 days (or more),
muting is no longer possible. After a period of 30 days, the
alarming function is no longer guaranteed.
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