Shenwei Electronics SF6 B infrared SF6 gas sensor module
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- Model ： SF6 B
- Category： Gas Sensors
- Brand ： Shanghai Shenwei Electronics
- Delivery Time： Request for a Quote for Further Details
- Manufacturer： Shanghai Shenwei Electronics
Products
SW521PR200 infrared SF6 sensor module is a gas sensor module using the NDIR infrared absorption detection principle. The concentration is determined based on the absorption of infrared gas by the gas. SW521PR200 uses imported light sources,specially structured optical cavities and dual-channel detectors to achieve spatial dual-optical path reference compensation. The microprocessor performs signal acquisition,processing and output. SW521PR200 has good selectivity,high sensitivity,no oxygen dependence,life,low power consumption; it has temperature control and pressure compensation functions; it also has UART,485 output and analog current/voltage output to facilitate various customer applications.
working conditions
| describe | symbol | numerical value | unit |
| Storage temperature | Tstg | -20 to 80 | °C |
| Operating temperature | TA | -20 to +60 | °C |
| Working humidity | HA | 0 to 90 | % RH no condensation |
| work pressure | PA | 0.8 to 1.2 | atm |
Electrical parameters
| describe | symbol | smallest | typical | maximum | unit |
| powered by | Vs | 11 | 12 | 30 | V |
| Working current | I | 100 | 120 | 150 | mA |
Note: The above operating current does not include the current of the temperature control part
Communication interface: UART output,RS485 output,analog current (4-20mA)/voltage output
Performance parameters
SW521PR200 infrared SF6 low concentration performance indicators (typical 100ppm)
| index | gas | Range/ppm | resolution | Relative error | absolute error | Remark |
| zero drift | SF6 | 0~100 | 0.1ppm | ±3%FS | ±5ppm | Just satisfy one of them |
| Range drift | ±3%FS | ±5ppm | Just satisfy one of them | |||
| Indication error | ±3%FS | ±5ppm | Just satisfy one of them | |||
| Repeatability | ±2%FS | ±3ppm | Just satisfy one of them | |||
| T90 | ≤5S（500ml/min） | |||||
