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T-Guard2_Operating-instructions-jina85en1-13-(2009)
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For the best possible reproducible results, the helium background must be stable.
Therefore, do not deliver the outside air directly to the reference inlet - use a buffer
volume instead. The buffer volume must be at least 4 liters.
• Fore pump
All vacuum pumps can be used with a gas flow of more than 200 sccm at a basic
pressure of under 50 mbar. INFICON offers a suitable pump as an accessory.
• Reference line
To protect the sensor, helium may not enter the reference line. Therefore, only
outside air or fresh air may be sucked into the reference line.
Содержание 540-200
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