Gas Dependency - Instrutech Hornet CCM502 User Manual

Instruction Manual
WARNING! Overpressure in the vacuum system > 14.5 psia (1 bar)
Injury caused by released parts and harm caused by escaping process gases can result if clamps are opened
while the vacuum system is pressurized. Do not open any clamps while the vacuum system is pressurized. Use
the type of clamps which are suited to overpressure.
WARNING! Overpressure in the vacuum system > 29 psia (2.5 bar)
KF connections with elastomer seals (O-rings) cannot withstand such pressures. Process media can thus leak
and possibly damage your health. Use O-rings provided with an outer centering ring.
CAUTION! If the internal pressure of a vacuum measuring device is allowed to increase above local
uncorrected barometric pressure (atmospheric pressure side), vacuum fittings may release and possible
overpressure conditions may cause leaks that would allow the gas inside the tube to release into the
atmosphere of the surrounding environment. Toxic, pyrophoric and flammable gases are examples of
hazardous gases that if allowed to leak out of the vacuum/pressure containment vessel into the atmospheric
environment, could cause bodily injury and possible damage to equipment. Never expose the vacuum
measuring device internal volume to pressure above local atmospheric pressure when using hazardous gases.

2.5 Gas Dependency

WARNING! The measurement value is gas dependent. The pressure reading applies to dry air, O
N . For other gases, the measurements have to be corrected. Refer to section 5 titled "Using the gauge with
2
different gases" for a more details.
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CCM502 Hornet
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