Startup - Micromeritics 1305 Operator's Manual

Startup

Startup
The following procedure should be followed when the Multivolume Pycnometer
1305:
•
is being used for the first time
•
has not been used for several days
Before beginning this procedure, ensure that the gas supply has been con-
nected and that the proper voltage is being supplied to the analyzer. (Re-
fer to Chapter 2 for voltage requirements.)
1. Turn on the analyzer and observe that the pressure display illuminates.
2. Remove the sample chamber cap and inspect the chamber; clean the cham-
ber if particles or powders are present.
3. Using a clean, lint-free cloth or tissue, wipe the upper rim and the upper in-
side surface of the chamber to remove any particles or buildup of grease
from the O-ring.
4. Inspect the bottom of the sample chamber cap; clean the sealing plug and its
flat surface.
5. Ensure that the O-ring is undamaged and that the grease film is clean and
adequate. If in doubt about either, replace them.
6. Install the desired sample chamber insert as follows:
Be sure the insert is clean; use a lint-free cloth if cleaning is required.
If you are using the 150-cm
ber is empty, proceed to step 8. If an insert is in the chamber, proceed to
step 7 for instructions on removing it.
a. Place the VENT valve in the OPEN position, then turn the VENT RATE
b. Place the insert into the sample chamber; a gentle push may be used if
c. Proceed to step 8.
3-8
control knob several turns counterclockwise to open it.
needed. Be sure the insert is properly aligned with the sample chamber
before pushing.
Model 1305 MultiVolume Pycnometer
3
range, an insert is not required. If the cham-
Jun 99