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from the canister. DO NOT REMOVE THE FAR FILTER AND ALUMINUM KEEPER. The
Drierite should be spread evenly, one granule deep, on a tray and heated for one hour at
about 200 degrees Celsius. The granules should then be cooled in a tight container before
refilling the plastic canister. Drierite is not toxic and can be handled with few precautions.
For more detailed safety information, please refer to the enclosed MATERIAL SAFETY
DATA SHEET.
With the far keeper and filter in place, pour in the regenerated or new Drierite. Make sure
the Drierite is well compacted set well. Next, insert the filter followed by the keeper and
spring. Finally, make sure the O-ring is in the proper position in the cap and place a thin
layer of vacuum grease on the O-ring. There is no need to over tighten the cover, but it
should be possible to hear and feel it seating firmly against the rubber O-ring.
4.4.3
Reinstalling the Canister
Reinstall the canister on the puller baseplate with the cap to the left and the air tube
connections to the front. The newer style plastic hold-downs can be tightened by reinstalling
the front screws. The older style black plastic hold-downs slide inside one another and are
pushed tight by hand to firmly hold the canister in place. At this point, install the air input
tube (larger tube, left-hand connector) and stop; do not install the output tube. Plug in the
puller and turn it on. The air pump will turn on and blow air through the canister. Allow this
process to continue for several minutes. This procedure allows the purging of any dust or
loose particles of Drierite during the recharging process. It is critical that this dust not be
blown into the output tube where it might clog either the air solenoid or the air jet. After the
purging process, you may connect the output tube and reinstall the puller cover.
If replacement is necessary, Indicating Drierite (8MESH with Indicator), manufactured by
W.A. Hammond Drierite Co., Ltd. (Xenia, Ohio, USA), can be purchased from Sutter
Instrument and most scientific supply distributors.
P-97 FLAMING/BROWN MICROPIPETTE PULLER OPERATION MANUAL – REV. 2.43 - DOM (20161118)
Summary of Contents for P-97
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