Application
Features & Advantages
1.Non-dispersive Infrared(NDIR)
2.Long life
3.Regular 7-series size for ease of use
| Basic Parameters | ||
| Gases | SF6 | |
| Principle | NDIR | |
| Measuring range | 0-1000 ppm | |
| Linear error | ±2%F.S. | |
| Response time(T90) | ≤25s (with waterproof breathable film) | |
| Resolution | 1ppm | |
| Accuracy | ≤±(1%FS+3%Truth value) | |
| Operating temp | -20℃ ~ 60℃ | |
| Storage temp | -40℃ ~ 85℃ | |
| Humidity | 0 ~ 95%RH | |
| Warm up time | 1min | |
| Signal Output | ||
| Digital signal | Modbus RTU 38400bps | |
| Analog signal | 0.4 ~ 2V | |
| Electrical Requirement | ||
| Power Supply | 3.3 ~ 6VDC | |
| Current | 45mA (average value) | |
| 180mA (max value) | ||
| power dissipation | 0.23W (average value) | |
| Pins | Function | Description |
| V+ | VCC+ | 3.3 - 6V |
| GND | VCC- | / |
| Tx | Serial port transmitter | TTL level， 0 – 2.5V |
| Rx | Serial port receiver | Compatible with 1.8-5V input |
| DA | Analog output | 0.2V indicates that the sensor is preheated |
| 0.4-2V corresponds to 0-100% F.S. | ||
| 2.2V indicates overrange | ||
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