APPENDIX B : COMPRESSOR DRIVEN AIRDRYER
B--16 20950 Issue 1 April 98
Humidity Check
Note: Thepartnumberfortheairdryertestkitusedinthischeckis30455.
(1) Remove the print head from its holster.
(2) Connect thehumiditysamplebottletothe1/4” siliconeair tubein
the print head.
(3) Turn on the airdryer.
(4) Set the ThermoHygrometer to monitor Centigrade. Insert the
meter into the neck of the sample bottle and switch the meter on.
(5) Allow the meter to acclimatise for ten minutes, then note the
temperature and humidity shown in the meter window.
(6) The air temperature should be slightly higher than the ambient
temperature and the humidity should be less than 22% Relative
Humidity.
(7) Remove the sample bottle and meter, return the printhead into its
holster.
Note: During the purge period when the solenoid valve is open, the
humidity may temporarily increase by up to 5% RH.
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