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Introduction
SJH-5BUL methane sensor is an ultra low power and dual beam gas sensor based on Non-Dispersive Infra-Red (NDIR) technology.
Adopting ultra low power LED emitter, Cubic mature technology platform and standard industrial 4-series design, SJH-5BUL sensor has features of ultra low power consumption, super fast response time, supiror signal stability, high precision, and long lifetime, etc.
SJH-5BUL could measure CH4 up to 100%LEL, are designed for hazardous areas that require for battery-powered portable or transportable detector, outdoor solar-powered IoT device and other low-power based wireless monitors. Suitable applications include Oil & Gas industry, LNG transportation, gas leak detection, underground utility vaults, sewers, industrial plants, etc.
Features
1. Dual-beam NDIR technology
2. Average working current less than 1mA
3. Superior fast T90 time<15s
4. Linearization and factory calibration for accurate digital output
5. Matrix calibration to ensure high accuracy over full-temperature
6. Embedded temperature and humidity compensation
7. Long lifespan of 10 years
Specifications
| Principle | NDIR |
| Measurement Gas | CH4 |
| Model | SJH-5BUL |
| Measurement Range | 0-100%LEL (0~5%Vol) |
| Accuracy | 0~2.50%vol (0~50% LEL): ±0.15%vol (±3% LEL) 2.50%vol~5.00%vol (50%~100% LEL): ±0.25%vol (±5% LEL) |
| Resolution | 0.01%Vol |
| Response Time | T90<15s |
| Output | UART_TTL (3V) |
| Working Condition | -40 ~ 70℃, 0~98%RH (non-condensing) |
| Storage Condition | -40 ~ 70℃, 0~98%RH (non-condensing) |
| Power Supply | 3.3~5.5V DC |
| Working Current | 0.8mA (@25℃, 3.3V DC) |
| Dimension | Dia20mm*H16.6mm |
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