8-12 Model 3775 Condensation Particle Counter
Removing and Installing the Saturator
Wick
Saturator wick needs to be removed prior to shipping the
instrument. It is no longer necessary to wait overnight to let the
saturator wick dry out as for the predecessor Model 3022A CPC.
Caution
Removing the saturator wick will cause butanol (butyl-alcohol) vapors to diffuse
into the work space. Wick replacement operations must be performed in a well
ventilated area, ideally under a fume hood. If unfamiliar with butanol, refer to the
Chemical Safety information at the front of this manual.
Caution
Whenever the instrument is turned on, the Auto-Fill is activated. Do not run the
instrument with the clear butanol reservoir cover plate removed to prevent spilling
butanol from the butanol reservoir.
Tools needed to remove saturator wick
8” plastic bag with seal, Philips-head screwdriver, small flat-blade
screwdriver, needle nose pliers, paper towels. Refer to figures that
follow.
To remove and reinstall the saturator wick, follow the instructions
below.
1. Find a plastic bag with seal (P/N 2300027 in accessory kit),
suitable to hold the 8” × 1” saturator wick. The wick will likely
be wet with butanol when removed and needs to be placed in
the bag immediately to reduce release of butanol vapors.
2. Connect the Drain Bottle to the drain port at the back of the
instrument.
3. Select the Manual Drain option from the
User Settings menu as
described in Chapter 4.
4. The drain bottle should be placed on the floor, well below the
instrument. To facilitate draining, tilt the instrument to the side
of the clear reservoir plate and/or to the side of the back panel.
The bottle can also be squeezed to initiate movement of the
liquid column in the drain tube.
5. Once drained, remove the clear plastic reservoir cover plate by
removing the four retaining screws as shown in
Figure 8-7.
Make sure the blue O-ring gasket seal is retained if it becomes
unseated. Put paper towels on the table under the reservoir to
absorb any butanol that spills out.
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