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Dräger Polytron 7000, type P3D – Installation Instructions
Every use of the Dräger Polytron 7000, type P3D requires the full understanding of the
Instructions for Use of the Dräger Polytron 7000 (90 23 758).
Intended Use
System for monitoring gas concentrations from an explosion hazard area, zone 20
(dust particle size ≥0.1 µm), for which the system components are installed in the
explosion hazard area, zone 21.
The system is not validated for the aspiration of explosive gases. Explosion hazard!
Make sure that no explosive gases are aspirated.
Description
The measured gas is aspirated via the integrated pump of the gas transmitter Polytron
7000, type P3D from zone 20 through a dust filter and supplied to the sensor of the gas
transmitter.
Explosion-Hazard
area, zone 20
1
Aspiration line: Pipe or hose (8mm outer diameter; connections can only be removed with tools)
2
Dust filter: Company M&C Products, FP-0,1 GF, filter mesh 0.1 µm
3
Outlet line: Pipe or hose (8mm outer diameter; connections can only be removed with tools)
4
Pipe or hose connection, sealed with compression ring (can only be removed with tools)
5
Gas transmitter Dräger Polytron 7000, type P3D
6
Measurement line to the controller unit (cable connection)
7
Controller unit
1
Enclosure, dust ignition proof
2
Polytron 7000, 4 to 20mA, with pump module
3
Pump adapter
4
Connector assembly
5
Cable gland M20, approval II 2D, temperature range min. –20 to 65 °C
6
Internal dust filter
7
Screw hose connector 2x
8
Compression ring connection G3/8" – d8, VA, 2x
9
Rating plate
An operation without dust filter is prohibited. Explosion hazard!
The aspiration lines may not be disconnected during operation. Explosion hazard!
DANGER
Explosion-Hazard
area, zone 21
1
2
DANGER
5
IN
+
OUT
4
3
8
Non-explosion-
hazard area
Polytron
OK
7
GND
4-20
+24V
6
9
Polytron
OK
+
GND
4-20
+24V
7
6
1
2
3
4
5
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