Micromeritics AccuPyc 1330, Руководство оператора, Страница: 63 / 115

What Happened Why What To Do
Nothing happens when
power switch is turned
on (ie: no lights on
schematic display, noth-
ing on LCD screen).
(Continued) Loose internal
connection, broken
wire, or failure of
internal power supply. Contact a
Micromeritics Service
Respresentative for
repair or replacement
information.
Unexpected characters
on LCD screen (ie:
squares, nothing but a
cursor). Software card not
properly installed or
defective. Check to be sure that
the card is properly
installed. (NEVER
insert or remove the
card while the power
is turned on.)
Specified pressure not
reached or maintained. Chamber cap not
properly closed. Close chamber cap by
turning clockwise.
Chamber cap contains
dust or debris or the
O-ring is not properly
greased. Using a lint-free tissue,
clean the chamber cap
and the rim of the cell
chamber. Lightly
grease the chamber cap
O-ring (refer to
Greasing the
Chamber Cap O-Ring
later in this chapter).
O-ring in chamber cap
not properly seated. Check the chamber
cap. Ensure that the
O-ring is properly
seated and that it
contains no scratches
or cuts.
O-ring in chamber cap
is cut or scratched. Repace the O-ring in
the chamber cap (refer
to Replacing the
Chamber Cap O-Ring
later in this chapter).
Gas leaks in the cell
chamber or expansion
chamber. Check the pycnometer
for leaks (refer to
Checking the Cell
and Expansion
Chambers for Leaks
later in this chapter).
Troubleshooting AccuPyc 1330
5-2 September 1996