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Dräger Polytron 7000
Use
4.1.3
Meaning of the symbols
Symbols on the right side of the displays indicate the device state. Some symbols
are only displayed if the gas detector is operated with the corresponding
component.
4.1.4
LED indication for LON version
The LON version of the gas detector has three LEDs located behind the display.
Symbol
Explanation
A fault is present. Fault signal is issued.
A warning is present. A warning signal is issued.
1)
1) If the device is in maintenance mode (e.g. warm-up phase 1), the maintenance signal is issued
instead of the warning signal.
A maintenance signal is issued.
Pump is installed.
Pump flow error
The configured full scale value is overshot in the 4-20 mA inter-
face
The configured threshold limit value is undershot in the 4-20-
mA interface.
Polling address of the analogue interface is set to a fixed value
(Multidrop operation) and transmits via HART.
Sensor diagnostic function – The sensor is ready for operation.
Sensor diagnostic function – The sensor is ready for operation
but nearing the end of its operating lifetime.
Sensor diagnostic function – The sensor is ready for operation
but should be replaced soon.
The buffer mode of the data logger is set to overwriting (roll).
The buffer mode of the data logger is set to holding (stack).
LED display
Meaning
The green LED
is illuminated
The gas detector is functioning properly.
The green LED
is flashing
A warning is present.
Orange LED
The gas detector communicates with the control unit via LON.
Red LED
An error is present.
