2150EX AV Flow Module - Isco

2150EX Area Velocity Flow System
Section 5 Maintenance
5.4.1 Replacing the
Desiccant: AV Module
Collar
The desiccant is contained in a cartridge located on the left side
of the 2150EX. To remove the cartridge, unscrew the collar and
slide the cartridge out of the 2150EX. The opaque tube reveals
the silica gel desiccant inside.
CAUTION
To prevent static electricity, do not replace silica in potentially
explosive atmospheres. Empty and fill the desiccant cartridge
in a safe area.
Cartridge
5.4.2 Replacing the
Desiccant: Battery
Module
5.4.3 Reactivating the
Desiccant
To replace the silica gel desiccant:
1. Hold the cartridge upright with the collar at the top.
2. As shown to the left, push the collar off the cartridge.
3. Empty the saturated silica gel beads or granules.
4. Fill the tube with new (P/N 099-0011-03) or reactivated
(see section 5.4.3) silica gel desiccant.
5. Press the collar onto the tube.
6. Slide the cartridge into the 2150EX Module. Tighten the
collar to seal the cartridge in place.
A bag of desiccant is located inside each of the battery caps
behind a retaining plate. To replace the desiccant:
1. Loosen the two mounting screws that secure the metal
retaining plate.
2. Rotate the retaining plate until it is free from the mounting
screws.
3. Remove the spent desiccant bag from the cap and replace it
with a new (P/N 099-0002-33) or reactivated (see section
5.4.3) bag.
4. Replace the retaining plate and secure it with the screws.
Silica gel beads, granules, and bags of desiccant can be reactivated.
CAUTION
Desiccant may produce irritating fumes when heated. Observe
the following precautions:
• Use a vented oven in a well-ventilated room.
• Do not remain in the room while the regeneration is taking
place.
• Use the recommended temperature. Avoid heating the
desiccant at higher than recommended temperatures.
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