Alpha Moisture Systems PSS Manual del usuario - Página 15
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PSS - Portable Sample System - User Manual
5 Filter Replacement (If fitted)
Before disassembling the filter unit (if fitted), the user must
5.1 Using a 3/4 (19mm) wrench, carefully untighten the filter housing anti-clockwise
Fig 22 to gain access to the filter cartridge. Unscrew the filter cartridge retaining
cap and replace the filter as necessary.
Re-assembly is the reverse of the dis-assembly procedure. Tighten lightly only.
Fig 22.
Unscrew anti-clockwise
6 Sampling very dry gasses and/or at very low pressure
For very dry gases and/or very low pressure, use the "Pig-Tail" VENT tube to stop
back diffusion and contaminating the sample head/sensor. Fig 23. Part No. PPE417.
Fig 23.
'Pig-Tail' Optional Extra
WARNING
follow the de-pressurisation procedure.
See section 4 on page 14.
VENT tube
15