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Dräger Polytron 7000
Use
Measurement of oxygen
PFG 16 G 005 X
The pump module is not part of the EU type examination certificate BVS 03 ATEX E
406 X and the type examination certificate PFG 16 G 005 X.
4 Use
In addition to the control panel, the unit can also be operated using, for example,
the Dräger PolySoft software, FDT applications or manual control units.
If individual parameters were changed with a configuration software, all parameters
from the device must be read back and verified manually.
4.1 Display
4.1.1 Measuring
mode
4.1.2 Special
state
No monitoring of the gas concentration and/or alarm state occur in the special state.
Special states on the gas detector exist in the following cases:
– Negative gas concentration
– Fault
Device configuration
Measuring range
Purpose
Type P3U with DrägerSen-
sor O
2
LS (6809630) or
O
2
(6809720)
0 to 25 vol.-% O
2
Detection of oxygen defi-
ciency and oxygen surplus
Example display
Description
Normal operation – The display shows the gas con-
centration, the measured gas and the unit of mea-
sure.
Overshooting (in the case of O
2
also undershooting)
of the alarm thresholds – The display in the exam-
ple shows the pre-alarm A1.
Overshooting the full scale value specified for the
sensor (see instructions for use/data sheet for the
sensor)
4-20-mA interface:
Full-scale value
Relay:
A2 relay energised
O2
Vol.%
20.9
O2
A1
19.0
O2
A2
