取扱説明書
Instruction Manual
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1. Safety instructions Make sure to follow
2. Precautions for use
This product is a simplified test chamber. Make sure to close the lid firmly without any gaps.
For highly accurate gas testing, use more airtight test chambers than this product.
Placing large-volume equipment such as gas detectors in the test chamber reduces the
effective volume of the test chamber, and may lead to errors in the gas concentration.
Highly adsorbent gases such as ammonia, VOCs and organic solvent vapors attach to the
inner surface of the test chamber easily, and are therefore not suitable for such applications.
If the gas is adsorbed in the chamber and liquefied, the concentration of the gas in a
gaseous state may decrease. If you need to test with highly adsorbent gases, use a test
chamber made of a material resistant to gas adsorption or with an internal coating.
If highly adsorbent gases are injected into the test chamber, remove adsorbed gases by
appropriate measures such as cleaning the inside of the test chamber with alcohol and
venting the inside with clean air for a long time.
Measurements in high / low temperature or in extremely high / low humidity in indoor
environments may affect the measurement values of the gas sensor. Check the
specification of each sensor.
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This test chamber is not explosion-proof. Do not use it for measurements when using
flammable gases with greater than 50% concentration of the Lower Explosive Limit (LEL).
The test chamber does not guarantee a completely sealed condition. Do not use it for
measurements with high concentrations of toxic gases hazardous to the human body.
When measuring with flammable gas, make sure to handle flames with caution, and only
exhaust gas from the test chamber in an area with adequate ventilation. Also be sure to take
necessary safety precautions such as installing gas detectors.
Perform measurements in a well-ventilated area, especially when using toxic gases. Also,
be careful not to inhale gases when venting them from the test chamber. Make sure to
ventilate gases outdoors or in fume hoods for safety.
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