Description:
The VC822M is a portable combustible gas detector from Victor that uses a gas-sensitive semiconductor sensor. It detects leaks of flammable natural gas with high accuracy.
Key features
- Sensor: Gas-sensitive semiconductor.
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Alarm Mode: The device features both visible (light) and audible (sound) alarms. Moreover, these dual alerts ensure that users never miss a warning.
Detection Range: It detects methane from 50 to 10,000 PPM (parts per million). In addition, this wide range makes the detector suitable for both small leaks and higher concentrations. Therefore, users can rely on it for improved safety across various environments.
- Sensitivity: Approximately <50 ppm (methane).
- Response time: Under 5 seconds for concentrations below 500 PPM and under 2 seconds for concentrations above 500 PPM.
- Warm-up time: Approximately 30 seconds.
- Power: It runs on two 1.5V AAA alkaline batteries.
- Low battery indicator: The power indicator flashes to warn of low battery voltage before automatically shutting off.
Troubleshooting common issues:
- Device not turning on:
- Check the battery: Ensure the two 1.5V AAA alkaline batteries are properly installed and not depleted. The power contacts should be clean and free of corrosion.
- Inspect contacts: Use a dry cloth to clean any dust or corrosion from the battery contacts.
- Inaccurate readings or failure to calibrate:
- Check for blockages: The sensor inlet can become blocked with dust, dirt, or moisture, which can cause low or incorrect readings. Inspect and clean the inlet.
- Expired sensor: A sensor has a limited lifespan, typically 2–3 years. If calibration continues to fail, the sensor may need to be replaced.
- Incorrect calibration: Ensure you are using the correct calibration gas and that it is not expired.
- No gas detection:
- Confirm presence of gas: Verify that there is actually gas present in the environment you are testing.
- Clean air zero-point calibration: Perform a zero-point calibration in a clean air environment.












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