HL-CO2D Series air duct carbon dioxide transmitter

HL-CO2D series air duct carbon dioxide transmitter is used to measure carbon dioxide in wind ducts in building automation systems. The signal output can provide voltage and current signal types to adapt to the different

requirements of various control systems. Models with RS-485 communication support Modbus protocol, making system integration easier. With relay control output, 3 levels of control points are optional, and has a 7-day ABC selfcalibration function.

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Specifications

Model	Measuring range	Signal output	Measuring accuracy	Working voltage	Working temp.&humidity	Display	Protection level
HL-TP22B1250VD	0~250Pa/0~500Pa/0~1250Pa(default)	0~10V	±1%FS	DC15~30V	-20~50℃ 0~90%RH (no-condensing)	√	IP65
HL-TP22B1250AD		4~20mA				√
HL-TP22B1250V		0~10V
HL-TP22B1250A		4~20mA