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Gas Leak Sensors

The refrigerant leak detection sensor is a Non-Dispersive Infrared (NDIR) gas sensor module for HVAC systems. This product combines the IR light source and IR detector using our MEMS technology, AFE-IC, and optical design technologies. The sensor provides excellent gas selectivity and accuracy. Additionally, it is mechanically / environmentally robust and can be used without maintenance.

Features
  • Integrated MEMS NDIR with ASIC
  • Detect IR absorption of gas molecules
  • Adopt MEMS technology for IR light source & IR sensor
  • Excellent gas selectivity and accuracy
  • UL60335-2-40 Ed.4 compatible
Resources
Specification Sheet Gas Leak Sensor (2MB)

NDIR Principal

Optical Pass

*Under Development*

Specifications

Model
Type 1
Type 2
Detection Target
R32, R454B
R32, R454B
Output
PWM
MODBUS RTU/RS485
Input Voltage [V]
5±10%
5±10%
Current Consumption [mA]
≦ 100
≦ 100
Working Temperature
-30 to 60 ℃
-22 to 140 ℉
-40 to 80 ℃
-40 to 176 ℉
Alarm Threshold [ppm]
10,000*
10,000*
Concentration Tolerance [%]
≦ 5
≦ 5
Effective Resolution [ppm]
≦ 100
≦ 100
Response Time (τ 25) [s]
≦ 13
≦ 13
Cross Sensitivity [-]
< 0.1 (for LPG)
< 0.5 (for EtOH, DME)
< 0.1 (for LPG)
< 0.5 (for EtOH, DME)
Protection
IP53 (except connector)
IP54
Size [inch]
1.02 * 1.02 * 0.50
2.01 * 2.01 * 0.71 (not including protrusion to attach equipment)
Compatibility Standard
IEC60335-2-40 Ed.7
UL 60335-2-40 Ed.4
IEC60335-2-40 Ed. 7
UL 60335-2-40 Ed. 4

*According to your requirements, please contact us.