1、 Overview of Carbon Dioxide Sensors

The PCLOA-2K carbon dioxide sensor adopts the NDIR infrared absorption detection principle, combining advanced optical paths, precision circuits, and intelligent software to form a universal infrared CO2 sensor module. PCLOA-2K adopts a single light source and single channel detector, and uses a microprocessor for signal acquisition, processing, and output, achieving environmental temperature compensation, correcting nonlinear relationships in principle, and having multiple output forms. It has the unique characteristics of NDIR products, such as good selectivity, high sensitivity, oxygen independence, and long lifespan. In addition, PCLOA-2K also has a 24-hour self calibration function.

PCLOA-2K can be widely used in HVAC, refrigeration, fresh air control, indoor air quality monitoring, and can be installed in intelligent buildings, ventilation systems, controllers, wall mounted applications, robots, automobiles, and other applications.

2、 Technical parameters of carbon dioxide sensor

1. Working conditions of carbon dioxide sensor

describe	symbol	numerical value	unit
storage temperature	TSTG	-20-70	°C
operation temperature	TA	-10-60	°C
Working humidity	HA	0-95 non condensing	% RH
working voltage	VDC	5±0.5	V
Working current	Average	40	mA
	Peak	140	mA

2. Performance parameters of carbon dioxide sensor

name		parameter	unit
Working principle		NDIR
detection range		0-2000	ppm
resolution		1	ppm
measurement accuracy		± 50ppm ± 5% current reading	ppm
Response time T90		<>	S
Warm-up time	start work	<>	second
	Achieve precision	<>	minute

3、 Real time photo of carbon dioxide sensor