5. Usage Instrucions 5-4. Performing air calibration
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5-4. Performing air calibration
Perform air calibration before measuring gas concentration.
Air calibration refers to zero adjustment required to ensure accurate measurement of gas concentrations.
WARNING
When air calibration is performed in the atmosphere, check the atmosphere for freshness before starting.
The presence of interference gases will prevent proper air calibration. The presence of interference gases is also
extremely dangerous because the product may not detect actual gas leaks correctly.
CAUTION
Perform air calibration in an environment that meets all of the following conditions:
・ Pressures, temperatures, and humidity levels are similar to pressures, temperatures, and humidity levels in the
actual usage environment.
・ In fresh air
Wait for the readout to stabilize before performing air calibration.
If the temperature difference between the storage location and usage location is 15 °C or greater, turn on the
power and allow the product to adjust to ambient conditions similar to those at the usage location for about
10 minutes. After this, air calibrate in fresh air before use.
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CO HS C- C
SO2 NO2
HCN
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