Product Introduction
Pin Output
4-20mA Wiring Definition:
VCC: 24V Power Supply
GND: Ground
mA: Analog Current
VCC: 24V Power Supply
GND: Ground
485A
485B
VCC: 24V Power Supply
GND: Ground
RX: Receive
TX: Transmit
Product Parameters
| Technical parameters | Sensor principle | Non-Dispersive Infrared (NDIR) |
| Detection gas | Carbon Tetrachloride Gas CCl4 | |
| Measurement range | 0 ~ 10000ppm (other ranges customizable) | |
| Measurement accuracy | ≤±3%FS | |
| Response time | T90 < 20s @500ml/min | |
| Preheating Time | Startup time ≤ 3 minutes, with heating function full warm-up takes about 60 minutes | |
| Calibration | Software Calibration | |
| Intake Method | Pump suction type | |
| Electrical Parameters | Supply voltage | 24V |
| Average Power | Less than 6.5W | |
| 信号输出 | RS485 Modbus RTU、TTL、 | |
| Analog Current (4 ~ 20mA) | ||
| Application Environment | Recommended Environment | Room temperature, dry, dust-free |
| 工作温度 | -20℃ ~ 60℃ | |
| Working humidity | 0 ~ 90%RH, non-condensing | |
| Recommended Flow Rate | 200 ~ 800ml/min | |
| Operating Pressure | 0.5 ~ 1.5 atm | |
| Warranty Period | 1 Year (Damage caused by water ingress, dust ingress, dropping, impact, disassembly, corrosion, or use beyond temperature limits is not covered by the warranty) |
Precautions
Because usage environments and conditions vary, zero-point calibration is required before using the sensor to improve product accuracy. Users are advised to integrate the zero-point calibration command into the instrument and calibrate the product periodically according to actual usage conditions.
With the heating function, full warm-up takes about 60 minutes, at which point the sensor reaches its optimal accuracy.
The gas to be detected requires oil removal, dehumidification, and dust removal filtration to ensure the sensor cavity remains clean.
Main Application Areas
- Industrial Gas Leak Detection — Continuous monitoring of carbon tetrachloride leaks in chemical plants and industrial process areas to ensure workplace safety and regulatory compliance.
- Environmental Emission Monitoring — Measurement of CCl4 concentrations in stack emissions and ambient air for environmental protection and reporting requirements.
- Chemical Process Control — Real-time gas concentration feedback in production processes involving carbon tetrachloride to maintain product quality and process efficiency.
- Occupational Health & Safety — Personal and area monitoring in laboratories and manufacturing facilities where CCl4 is used, protecting workers from exposure.
- Refrigerant & Solvent Detection — Detection of carbon tetrachloride vapors in refrigerant handling and solvent recovery systems to prevent accumulation and hazards.
Keywords：infrared carbon tetrachloride sensor,NDIR CCl4 gas sensor,SKA/NE-101 gas module,industrial gas sensor,RS485 Modbus gas sensor,MEMS NDIR sensor,dual-channel gas detector,low power gas sensor
