The GDA 4350 Carbon Dioxide Gas Sensor is a 3 wire Non Dispersive Infra red (NDIR) Carbon Dioxide (CO₂) sensor. It gives a 4-20 mA, 0-20 mA, 0-5 V or 0-10 V o/p over the range of the sensor.

Housed in an ABS plastic case with an aperture for the gas path. It uses laser LED to give reliable performance. Calibration for non critical safety applications is every 3 years. The low temperature version (suffix LT) operate from – 25°C to 30°C.

Highlighted Features

• 24 VDC, 3 Wire Operation
• 4-20 mA, 0-20 mA, 0-5 V or 0-10 V o/p linear over range of sensor
• Ultra low cross sensitivity to other gas
• Temperature and humidity compensated
• Multiple ranges
• No moving parts.
• Factory calibrated
• Low drift

Designed, manufactured and supported locally in Australia.

 

Detectable Gases	Carbon Dioxide (CO₂)
Detectable Gas Ranges	0-2000 ppm;10000 ppm; 5% vol; 20% vol; 100% vol
Power Requirements	24 VDC
Output Types	4-20 mA, 0-20 mA, 0-5 V or 0-10 V
Power Consumption	<30 ma=”” 24=”” vdc=”” br=””>
Output Specifications	max loop Impedance 800R @ 24 VDC
Wiring	3-wire (0.75mm2) with overall screen
Operating Temperature	5°C to +45°C (LT version to -20°C to +45°C)
Operating Humidity	5% to 95% RH peak non condensing
Operating Pressure	900 – 1100 mbar
Accuracy of Reading	+- 2% FSD +-0.5% reading @SATP
Warm Up Time	<30 sec=”” br=””>
Response Time	T90 < 20 sec at SATP
Zero Drift	<0.5% FSD for 90days @SATP
Calibration Drift	<0.5% FSD for 90 days @SATP
Sensor Technology	Non Dispersive Infra-Red (NDIR)
Calibration Requirement	Every 3 years with 6 monthly functional tests if sensor operated at SATP
Typical Operating Life	10 – 15 years in standard operating environment
Dimensions	115 x 130 x 71 mm (L, W, D) Mounting holes 105 x 75 mm
Enclosure Material	ABS plastic
Cable Entry	User Provided