Dräger Polytron 3000 - ancb.it

Intended Use
Intended Use
Dräger Polytron ® 3000 Transmitter for electrochemical sensors
— For stationary, continuous monitoring of gas concentrations in ambient air, with
built-in DrägerSensor ® .
— For indoor and outdoor use
— For installation alternatively in Ex areas zone 0, 1, 2 or 22 corresponding to device
category 1G, 2G, 3G, 3D or Class I, Class II, Div. 1 & 2 hazardous area.
For further details, see the installation notes.
Notes on use in zone 22:
Valid for all Dräger Polytron 3000 versions (see II 3D identification marking on the identification tag) and the accessories Duct
Mount Kit (Order No. 8317150).
ST–691–2002–1.eps
Identification marking and safety data concerning dust explosion protection:
0158 II 3D, IP6x T65 o C (–40 o C Ta +65 o C)
Maximum supply voltage: 30 V DC
As electrical equipment of the device class and category II 3D according to directive 94/9/EC, the transmitter Dräger Polytron
3000 can be installed and operated without safety barriers in the ATEX Zone 22 (dust), if the following notes concerning safe
use are taken into account.
1. The category II 3D is only valid for the accordingly marked Dräger Polytron 3000 transmitter.
2. According to EN 50281-1-2, the transmitter may not be installed in areas which are endangered by conductive, combustible
dusts.
3. The Transmitter and the accessories must be enclosed according to IP 6x rating. Especially the locking screw (2 mm Allen
screw) of the sensor bayonet ring tight enough to ensure that the bayonet ring is secured against unintended loosening.
4. The Dräger Polytron 3000 transmitter and the accessories have a maximum surface temperature of 65 o C and the IP 6x rating.
The transmitter must be installed and maintained according to valid regulations (e.g. in European countries according to EN
50281-1-2).
5. The transmitter and the accessories may only be opened when off-circuit or outside the Ex area. This must always be observed
when replacing the sensor!
— Calibration by one person even in areas subject to explosion hazards.
— For connection to Dräger central units or to a programmable logic controller (PLC) to warn against physiologically harmful
gas concentrations.
— The optional display on the transmitter indicates the actual gas concentration and makes calibration easier.
False alarms during calibration are avoided by a special maintenance mode with output of a maintenance signal.
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® Polytron is a registered trademark of Dräger.
DrägerSensor is a registered trademark of Dräger.
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