13
Items of Measure
Frequency
Guideline for
Measurement
Set Value
Item to Check
Water Supply Value
More than once a
day
Design value
Liquid Supply
Pressure
More than once a
day
Design value
Make sure that it does not exceed the maximum water
supply pressure as stipulated in the specifications.
Liquid Supply
Temperature
More than once a
day
Design value
Make sure that it does not exceed the limit of liquid
supply temperature stipulated in the specifications.
Pressure Difference
in Module
More than once a
day
Design value
An increase of more than 0.05MPa (0.5kg/cm2) from the
initial difference pressure may clog or contaminate the
hollow fiber. Either cleanse or replace the module.
Vacuum
More than once a
day
Design value
When degradation of the setup value has occurred,
please check the following 3 points.
•
Air leakage from the vacuum exhaust piping
•
Liquid leakage from vacuum exhaust piping
•
Trouble with the vacuum pump
Confirmation of
Drain (Trap) of
Vacuum Line
More than once a
week
A large amount of liquid may be found in the vacuum
line, which can be considered a leak. In this case, replace
the module.
Dissolved Oxygen
(D/O) in dealt Liquid
More than once a
week
If target D/O value is not attained, check the following.
࣭
D/O in inlet water
࣭
Inlet water volume
࣭
Inlet water temperature
࣭
Vacuum power
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It is necessary to have regular checkups to maintain the performance of the degasification
module. Check the items described in the following table and record the results.
Application Materials Product Division
