1. Description

 TX721-A1 infrared carbon dioxide gas sensor is a general purpose intelligent infrared gas sensor, the sensor uses non-dispersive infrared (NDIR) principle to detect CO2 in the air, the sensor has no oxygen dependence, stable performance and long life. Built-in temperature compensation. 

2. Technical specifications

3. Sensor Size

4.Intrinsically safe explosion-proof

  This product complies with GB3836.1-2010 "Explosive Atmospheres Part 1: General Requirements for Equipment" and GB3836.4-2010 "Explosive Atmospheres Part 4: Equipment Protected by Intrinsically Safe "i"" standards; the explosion-proof mark is Exib ⅡB T4 Gb, which is suitable for Zone 1 and Zone 2, containing Class IIA, T1~T3 combustible gases, steam and air mixed with explosive environments; it has passed the inspection of the National Explosion-proof Electrical Products Quality Inspection Center and obtained an explosion-proof certificate. When using, please pay attention to the following matters:

 The sensor must be powered by an intrinsically safe power supply, otherwise it will affect the explosion-proof performance.

 It is prohibited to replace the sensor in a hazardous area.

 It is prohibited to disassemble or replace the sensor element to avoid affecting the explosion-proof performance.

 It is not allowed to replace components or structures to avoid affecting the explosion-proof performance.

The installation and wiring of the safety barrier must be carried out in accordance with the safety barrier instruction manual, and the safety barrier must obtain an explosion-proof certificate.

5.Notes

 The sensor should be calibrated regularly, and the recommended calibration period is 6 months.

 Do not use the sensor for a long time in an environment with high dust density.

 The sensor should be kept away from heat sources and avoid direct sunlight or other heat radiation.

 Please use the sensor within the power supply range of the sensor.

 Do not cut or weld the sensor pins.