Verifying Operation - Micromeritics AccuPyc 1330 Operator's Manual

AccuPyc 1330

Verifying Operation

Before performing an analysis, verify that the pycnometer is operating prop-
erly by performing the following steps.
Numbers are displayed on the pycnometer as shown in the following
example:
Note that a period is used to denote a decimal fraction.
1.
2.
3.
4.
Do not exceed 19.9 psig. If the pressure exceeds 20 psig the transducer
may overrange and an error message will be displayed. If this occurs,
open the expansion and vent valves and allow the transducer to drift
back down, then start the procedure over.
5.
6.
7.
8.
If the pycnometer responds as described above, it is ready to operate. If it
does not, check installation procedures, then repeat the verification proce-
dures. If it still does not respond as described above, service to the system or
operational assistance may be required. Contact a Micromeritics Service Rep-
resentative.
September 1996
Press 0 to zero the transducer.
Once the zeroing process is complete (the pressure display shows ap-
proximately zero), press
mode.
Use the ,
FILL EXPAND
opens and closes when you press the appropriate key. The valve is open
when the indicator above the key is on and closed when the indicator is
off.
Open the fill valve. Wait until the pressure reaches 15 to 19 psig.
Close the fill valve.
Observe the pressure display. After an equilibration period, the pressure
should not vary more than 0.005 psig/min.
Open the expansion valve.
Observe the pressure display. After equilibration, the pressure should not
vary more than 0.005 psig/min. Open the vent valve. After a period of
time, the pressure should again stabilize.
10000.00
1 on the keypad to enter manual
, and keys to close all valves. A valve
VENT
Verifying Operation
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