Excessive Heat Generated During Purification
Interpretation:
The purifier assembly is uncomfortably warm to
the touch while process gas is flowing through purification material.
Also, purifiers are supplied with an over-temperature indicator,
which should be checked periodically during normal operation. If
the indicator turns black, contact Pall Corporation SLS for technical
assistance.
Possible Causes:
• Major leak or equipment contamination upstream of purifier.
• Excessive impurity (perhaps water vapor) concentration in
process gas supply.
• Purification material unsuitable for purification of supplied process
gas. Purification material was not adequately conditioned against
intended process gas.
• Wrong gas supplied to purifier.
Low Delivery Flow Rate or Pressure
Interpretation:
Unable to achieve requisite process gas delivery
flow or pressure.
Possible Causes:
• Clogged purifier filter, valve, purification material bed, or gas line.
• Inadequate process gas supply pressure.
• Defective valve.
• Valve operators improperly positioned
• Purifier assembly too small for application.
