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138 Series Sterilizers
Operations and Maintenance Manual
4.2 | Initial Procedure (Electric Heat)
1.)
Check the sight glass to verify an
adeguate water level. Adeguate level
is at the 1/2 mark.
2.)
Turn
the
pressure
control
switch
knob
to
the
maximum
clockwise
position.
3.)
Ensure that the operating valve is in
the off position.
4.)
Turn the heat switch on to energize
the heaters. The red pilot light glows.
5.)
When
the
jacket
pressure
gauge
shows the
desired
pressure
(for
250°F operation, 18 psig, for 270°F
operation, 29 psig), turn the pressure
control switch knob slowly counter-
clockwise
until the pilot light goes
out.
The
pressure control will then
cycle automatically,
maintaining the
selected pressure.
A preheating time
of 10 to 15 minutes is recommended
to allow the pressure to stabilize.
6.)
The
sterilizer
is
now
ready
for
loading.
handle て on the: så ety. valve. to release
any. 'pressure. in the
jacket
before
funnel.
Wait
until the
internal
parts
cool below the boiling point and refill
the jacket with water.
Then, press the
reset.
button
and
proceed
with
the
operating cycle from the beginning.
M 138.DOC
44
WARNING:
Pipe the drain valve to an
open
container
to
prevent:
possible
operator injury from steam.
Original
November,
1996
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