Meaning Of The Symbols - Dräger Polytron 7000 Instructions For Use Manual

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.
Symbol
1) If the device is in maintenance mode (e.g. warm-up phase 1), the maintenance signal is issued
instead of the warning signal.
4.1.4 LED indication for LON version
The LON version of the gas detector has three LEDs located behind the display.
LED display
The green LED
is illuminated
The green LED
is flashing
Orange LED
Red LED
Explanation
A fault is present. Fault signal is issued.
A warning is present. A warning signal is issued.
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).
Meaning
The gas detector is functioning properly.
A warning is present.
The gas detector communicates with the control unit via LON.
An error is present.
Dräger Polytron 7000
Use
1)