Product Overview

The CGS500-IR NDIR Gas Sensor is an infrared sensor designed to replace thermocatalytic (pellistor) gas sensors. It measures hydrocarbon gases in the range 0-100% LEL using miniaturised NDIR technology. The key benefit of the infrared technology is that it is not affected by catalytic poisons. It is certified ATEX II 2G EEx d IIC T6 and is available as a sensor only or fitted in an EEx e certified junction box.

Key Features

• NDIR technology is not affected by catalytic poisons.
• Sensor MTBF (Mean Time Between Failure) is 10 years.
• Temperature compensated.
• Low drift.
• Fast response time (T90 is less than 30 seconds).
• Rugged stainless steel body.
• Compatible with Wheatstone Bridge systems (pellistor compatible).

Applications

• Detects most hydrocarbons.
• Designed as a replacement for thermocatalytic sensors in hydrocarbon monitoring.

Technical Specifications

Specification	Value
ATEX Certification	II 2 G EExd IIC T6 (Certificate No. BAS00ATEX2246X)
Detection Range	0-100% LEL
Operating Voltage & Current	3.0Vdc @ 100mA
Operating Temperature Range	-20 degrees C to +40 degrees C
Repeatability	+/- 2% LEL CH4 at 20 degrees C
Drift	+/- 1% LEL CH4 per month at 20 degrees C
Sensor MTBF	10 years
Mounting Thread	M25 X 1.5mm
Junction Box Size (Excl. Sensor)	W: 75mm, D: 58mm, H: 80mm