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CO2 Transmitter

CO2 Transmitter

ADDMAS Measurements (Locus Corporation)

CO2 Transmitter

ADDMAS Measurement offers duct mounted CO2 Transmitter and switches of the EE85 series are designed for HVAC applications. The CO2 sensing element uses the non-dispersive infrared technology (NDIR). Apatented auto-calibration procedure compensates for drift caused by the aging of the sensing element and guarantees outstanding long term stability.

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Specifications

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Technical Data: Measuring Values	Â
CO₂	Â
Measurement Principle	Non-Dispersive Infrared Technology (NDIR)
Sensing element	E+E dual source infrared systems
Measuring Range	0 to 2000ppm / 0 to 5000ppm
Accuracy at 20ÂºCÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0 to 2000ppm	< +/- (50ppm +2% of measuring value)
and 1013 mbarÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0 to 5000ppm	< +/- (50ppm +3% of measuring value)
Â	Traceable to international standards, administrated by NIST, PTB, BEV.....
Response time _T63	< 120s
Temperature dependence	typ. 2ppm CO₂/ÂºC
Long term stabiliy	typ. 20ppm / year
Sample rate	ca. 30s
Output: Analogue Outputs	Â
0 to 2000ppm / 0 to 5000ppm	0 to 5V - 1mA L < 1mA
Â	0 to 10V - 1mA L < 1mA
Â	4 to 20mA R_L < 500 ohm
General	Â
Supply Voltage	15 - 35 V DC SELV = Safety Extra Low Voltage
Power requirement	< 3W
Warm up time2)	< 5 min
Housing /protection class	PC/housing: IP65, probe:IP20
Cable gland	M16 x 1.5 cable Ã¸ 4.5 - 10 mm (0.18 - 0.39")
Electrical connection	Screw terminals max. 1.5 mm² (AWG 16)
Working temperature and conditions	-5 to 55ÂºC(23 to 131ÂºF)Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0 to 95% RH (not condensating)
Storage temperature and conditions	-20 to 60ÂºC(-4 to 140ÂºF)Â Â Â Â Â Â Â Â Â Â Â Â Â 0 to 95% RH (not condensating)

Products from ADDMAS Measurements (Locus Corporation)