Greasing The Chamber Cap O-Ring - Micromeritics AccuPyc 1330 Operator's Manual

Equipment Setup

Greasing the Chamber Cap O-Ring

A greasing disk is included in the accessory kit shipped with the pycnometer.
Use the disk to grease the O-ring as described below.
Rubber gloves should be worn to prevent contaminating the grease with
oil from your fingertips. Carefully apply a thin layer of grease; both too
much and too little grease can cause problems. Too much grease may al-
ter cell volume. Too little grease results in an imperfect seal and leaks.
1.
2.
3.
Apply a VERY LIGHT coating of grease to the O-ring. There should be
no visible ridges of grease; excess grease may alter analysis results.
4.
2-10
Remove the chamber cap by turning it counterclockwise then lifting off.
Using your fingertip, apply a thin layer of Dow Corning high vacuum
grease (or equivalent) to the greasing disk.
Insert the greasing disk into the chamber cap and turn slightly to apply a
very light coating of grease to the O-ring.
Figure 2-10. Greasing the O-Ring in Chamber Cap
Replace the chamber cap.
AccuPyc 1330
Greasing Disk
O-ring
Chamber Cap
September 1996