Shellab SCO2W-2 - Manual (Page 10)

10
OPERATION
READ THIS SECTION IN ITS ENTIRETY BEFORE ATTEMPTING OPERATION!
IMPORTANT: In order to ensure the proper operation of this incubator, it is essential that
you regularly verify the accuracy of the temperature and CO
2
controls. Temperature can
be confirmed by use of a thermometer inside of the chamber. CO
2
can be confirmed with
the use of a Fyrite Gas Analyzer or other equipment such as a gas chromatograph. These
must be checked at least on a weekly basis. Any questions should be directed to a
technical service representative.
5.1 Power up the unit by attaching the cordset (supplied with the accessories) to the unit inlet
and the building power supply. Attach the female end of the cordset into the fused and
recessed male plug on the rear of the unit and the male plug end of the cordset into the
building supply receptacle. Turn the power switch to the I/ON position.
5.2 Filling and Draining: The front panel of the incubator has a WATER LOW warning light. Fill the
water jacket with water by means of the fill port located at the top right rear of the unit marked FILL
WJ HERE. Stop filling when the WATER LOW warning light goes off. When full, the unit holds
approximately 9.5 U.S. gallons (36.005 liters). To drain the unit, hook a suitable hose to the siphon
tube marked SIPHON HERE located to the left of the fill port. Start a siphon and allow unit to empty
into a suitable service drain or catchment area.
WATER RECOMMENDATIONS FOR USE IN WATER JACKET INCUBATORS
The addition of a dis-similar metal anode in Water Jacket incubators will allow the use of good-
quality tap water to fill the Jacket. The anode is located in a threaded port near the fill port on the
rear of the unit. The anode will dissolve as it is in contact with mineral salts or dissolved gasses in
the tap water. The anode should be removed and checked for erosion every year. When the
anode appears to be over 50% eroded, a new one should be purchased form Sheldon Mfg., Inc.
(Replacement Part #0260500)
Tap water with a hardness of more than 30 parts per million (PPM) or 1.5 grains per gallon (GPG)
will require assessment of the anode on a yearly basis. Dissolved gasses should be no more than
120 PPM or 7 GPG. The Ph of the water should test to between 6.0 and 8.5. DO NOT USE
DEIONIZED WATER.
When in doubt, it is advisable to use DISTILLED WATER ONLY.
5.3 Setting the Controls: Refer to the Control Panel Overview Section 4.6 of this manual.
5.4 Calibrating the Controls:
A. Push and hold both the UP and DOWN buttons simultaneously until the control displays CP
(for temperature) or CO (for CO2) after the display will start to blink.
B. While the display is blinking the UP and DOWN buttons can be used to adjust the display to
match the actual condition in the incubator chamber.
C. If no buttons are pressed within five (5) seconds the blinking will stop and the display will
revert to showing the process or actual parameter within the incubator chamber.
5.5 Humidification: Humidification of the unit is achieved by evaporation of water from the chamber
humidity pan placed in the bottom of the incubator. By filling this stainless steel reservoir pan with
DISTILLED WATER ONLY and allowing this water supply to heat and evaporate, near saturation
Section
5