Dräger Polytron 7000 Instructions For Use Manual page 38

Start-up
The following icons may be displayed on the right side of the display in measur-
ing mode in order to indicate the operating status of the unit:
A warning exists – see page 53 for information on how warnings are displayed.
The information can be retrieved in info mode, see page 39.
A fault exists – see page 53 for information on how faults are displayed.
Maintenance signal to the control unit, see page 74
A pump is installed and flow monitoring is active
There is a pump flow fault, see page 61
The measured value exceeds the full-scale value of the analogue interface
The measured value is less than the zero-point of the analogue interface
The analogue interface is set to a fixed value (e.g. for multidrop) and is not trans-
mitting measured values
"Predictive" maintenance: the sensor is ready for use
"Predictive" maintenance: the sensor is ready for use but nearing the end of its
operating lifetime
"Predictive" maintenance: the sensor is still ready for use but should be replaced
as soon as possible
The Datalogger is active in roll mode. For details on activating and deactivating
the Datalogger, see page 78
The Datalogger is active in stack mode. For details of activating and deactivating
the Datalogger, see page 80
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