Operating on the principle of laser spectral absorption, this sensor utilizes an internal circuit to drive a laser diode that emits a specific wavelength of light. After passing through the target gas, the light is received by a detector and converted into an electrical signal. The main control chip then accurately calculates the methane concentration by analyzing the degree of laser attenuation.
① Structural Characteristics
Dimensions: 170 mm × 240 mm
Weight: 2.5 kg
Protection Rating: IP68
② Power Supply Characteristics
Rated Voltage: DC 18 V
Operating Voltage Range: DC 9 V ~ 24 V
Maximum Operating Current: ≤100 mA
③ Performance Indicators
Methane Measurement:
Measuring Range: 0~100%
Measurement Accuracy:
0~1% Range: ±0.05%
1~100% Range: ±5% of Reading
Communication Interface:
RS485 Interface:
Baud Rate: 1200~38,400 bps
Signal Peak Voltage: ≤3.3 V
Switching Output:
Channels: 1
Output Type: Normally Closed (activated during alarm)