Carolina 25X Electric Pressure Steam Sterilizer - Manual (Page 5)

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6. HEAT CONTROL KNOB (Part No. 2160). This
knob is located in the center of the control
box and has been calibrated at the factory. To
increase heat, turn the heat control knob in a
counter-clockwise direction; to reduce the
heat, turn in a clockwise direction. When the
gauge reaches operating pressure of 17-21
psi, turn the knob clockwise to reduce heat.
Maintain a close watch of the pressure gauge,
and adjust heat up or down as appropriate.
The heat control knob determines the
duration that the thermostat contact points
remain open and closed. The thermostat
reacts to temperature changes and is
controlled by the manner in which the heat
control knob is operated. Whenever current is
going into the heating element, the red pilot
light will be illuminated and when current is
not being used, the pilot light will be out. The
control knob is fastened to the shaft of the
thermostat by a set screw. The shaft of the
thermostat is indented to accommodate this
set screw.
7. STERILIZATION PERIOD. The sterilization
period begins when the pressure steam
gauge needle registers in the green sterili-
zation band shown on the face of the gauge.
The sterilization pressure range is 17-21 PSI.
AT THIS TIME YOU BEGIN THE TIMING OF
THE STERILIZATION CYCLE AND CONTINUE
TIMING FOR NOT LESS THAN 35 MINUTES.
8. At the end of the sterilization period, turn the
on/off toggle switch to "off" and move the
lever on the control valve to an upright
(vertical) position so that the steam is
permitted to escape. When the lever is in an
upright position, the steam will escape at
maximum. To avoid touching the hot lever,
you may use any object such as a pencil or
hot pad, etc., to move the lever from the
closed to open (vertical) position. When the
pressure gauge indicates zero, loosen the
wing nuts evenly by turning two opposite
wing nuts counter-clockwise at one time. The
wing nuts, side handles and top handle will
be hot. Always use hot pads when handling.
Having removed all wing nuts from the slots
in the cover, use the top handle to lift the
cover slightly, turning the cover counter-
clockwise for easy removal. When
removing the cover, always tilt and
angle the cover away from yourself or
any other people in the area to prevent
injury from the hot steam.
In the event your cover sticks, use a large
standard srewdriver to pry the top loose.
Place the end of the screwdriver at an angle
between the cover and bottom near a wing nut
assembly. Do not go straight in with the
screwdriver or you will damage the metal-to-
metal seal. Gently pry upward using the
screwdriver as a lever. Continue to pry
upward at each wing nut assembly area
uniformly so that the cover is raised evenly. In
most cases, the cover should come off rather
quickly. If you need further assistance, please
read metal-to-metal seal maintance instruc-
tions on page 5.
The inner container may then be removed
from sterilizer for unloading. Use hot pads
when removing.
To start another sterilization cycle, repeat
procedure as outlined.
If the sterilizer is not going to be used again,
before putting the unit away, all water should
be emptied from the unit and the unit be
thoroughly dried inside. It is recommended
that the water be poured out of the unit while
the bottom is still warm. The heat will help
dry the unit if you leave the cover off for 15
minutes before placing the cover on the unit
for storage. For storage purposes, it is only
necessary to slightly tighten the wing nuts
enough to hold the cover on the bottom.
When storing, it is recommended that the
control valve be left in a vertical position to
permit air to circulate into the bottom.
Calibration Instructions
for No. 2159 Thermostat
Model 25X All-American
Pressure Sterilizer
Start sterilizer as if you were going to run a
cycle.
If unit shuts off at too low a temper-
ature or pressure, follow these
instructions:
Turn thermostat shaft counter-clockwise.
When the unit is at desired temperature or
pressure, turn shaft clockwise until light
goes out. (Do not turn any further.) Tighten
the knob onto the shaft with pointer in the
upright position.
If unit runs too long on high, follow
these instructions:
When unit is at desired temperature or
pressure, turn shaft clockwise until light
goes out and tighten knob in upright
position.