CM50FS Dry Air / Vacuum Pump System
11/30/2001 Rev. 3
Hutech Corporation & ScienceCenter.Net
©
2001
3
Recharging the Desiccant
Periodically (depending on your climate), the silica gel desiccant will need to
be “recharged,” as indicated by a humidity indicating card. This is placed
inside the CM50FS enclosure where it can be seen without opening the unit.
Recharging the desiccant is accomplished by placing the silica gel packets in
low heat (~245 F) on a tray in an oven. For full recharging, 16 hours is
recommended, but it is not necessary to strictly follow this as a rule. Note
that when removing the desiccant packets, the enclosure must not be turned
upside down as the pump is not tightly fastened to the enclosure (to minimize
vibration coupling).
To reset the indicator card, place the card in an oven for less than 1 minute.
When placing the card back in the CM50FS enclosure, place it where it will
be visible from the outside, and insure that its rear is exposed to the air inside
the enclosure. Replace the cover on the enclosure as soon as possible after
recharging to minimize exposure to outside humidity.
Notes:
1. Enclosure power connector specification:
♦
12VDC (unregulated), center positive
♦
5.5mm OD
♦
2.1mm ID
