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Maintenance
Sensor diagnostic function
This function is active only if the Polytron 7500 is equipped with a sensor diagnostic
dongle (Order No. 83 17 860).
— Extended sensor self-test function, taking such things as the temperature, gas
monitoring and remaining sensitivity into account.
— During normal operation, the sensor status is indicated by the sensor-diagnostic
icon in the display:
The sensor is ready
The sensor is ready for use but nearing the end of its operating lifetime
The sensor is still ready for use but should be replaced as soon as possible
Page 24 of 72 Pages
9023927 - 2nd edition - May 2007
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