Dräger Polytron 8720 User Manual

Description
Dräger Polytron 8700/8720 5
2 Description
2.1 Product overview
2.1.1 Explosion proof device
1 Housing cover
2 Clip
3 Enclosure with main electronics (and optional relay)
4 Lower part of housing
5 Dräger PIR 7000/7200
6 Assembled device
7 Mounting spacer
2.1.2 Explosion proof device with increased safe wiring
compartment (e-Box)
1 Housing cover
2 Clip
3 Enclosure with main electronics (and optional relay)
4 Lower part of housing
5 Dräger PIR 7000/7200
6 Feed through cable
7e-Box
8 Assembled device
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Dräger Polytron 8720 Specifications

General

Type	Gas Detector
Signal Output	4-20 mA
Housing Material	Stainless steel or aluminum
Approvals/Certifications	ATEX, IECEx, UL, CSA
Detection Principle	Infrared (IR)
Target Gas	Combustible gases
Measuring Range	0-100% LEL (Lower Explosive Limit)
Operating Temperature	-40 to +65 °C
Operating Humidity	0 to 95% RH (non-condensing)
Power Supply	12-30 V DC
Display	LCD
Communication Interface	HART, Modbus
Output	Relays
Protection Class/Rating	IP66