Dräger Polytron 7000 Instructions For Use Manual page 6

Intended Use
If used together with a control unit (e. g. Regard without a safety barrier) or equipped with a relay module:
No explosion protection. Explosion hazard!
— Warning before any hazardous gas concentrations are reached.
— Automatic implementation of counter measures (for example, connection of an additional ventilation).
— Warning for device errors; display of necessary maintenance work.
— Special calibration mode (blocking of alarm triggering, display of calibration mode, one-man calibration).
Detection of oxygen in accordance with EN 50104
If the Dräger Polytron 7000 transmitter is used for the detection of oxygen, at least one alarm relay must be config-
ured as latching.
Measuring function for the explosion protection
BVS 03 ATEX E 406 X
Dräger Polytron 7000 4 to 20 mA
with/without display and keypad
with/without relay and pump module
in connection with DrägerSensor
O LS (6809630)
2
O (6809720)
2
Measurement of oxygen
PFG No. 41300504
Dräger Polytron 7000 4 to 20 mA
with/without display and keypad
with/without relay and pump module
in connection with DrägerSensor
O LS (6809630)
2
O (6809720)
2
6
CAUTION
CAUTION
Measuring range
0 to 25 Vol.-% O
2
Measuring range
0 to 25 Vol.-% O
2
Testing standard
EN 50104 (neutralization measure-
ment)
Testing standard
EN 50104 (oxygen deficiency and
excess of oxygen)