Shellab SCO12WE-2 - Manual (Page 11)

10
OPERATION
READ THIS SECTION ENTIRELY BEFORE ATTEMPTING OPERATION
IMPORTANT: In order to assure the proper operation of this incubator, it is essential that
you regularly verify the accuracy of the temperature and CO

controls. Temperature can
be confirmed by use of a thermometer inside of the chamber. CO

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. The temperature, and CO

were calibrated at the factory
prior to shipment.
5.1 Power up the unit by attaching the cord set (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 cord set into the building supply receptacle. Turn
the power switch to the I/ON position.
5.2 Filling and Draining the Jacket: 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 19.0 U.S. gallons (72 Liters) in the chamber. To drain the unit, hook a suitable hose to the
siphon tube located to the left of the fill port and marked SIPHON HERE. Start a siphon and allow
the water 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.
When in doubt, it is advisable to use DISTILLED WATER ONLY.
5.3 Setting the Controls: Important: the incubators must be stable at desired temperature and
humidity before CO2 is supplied. The CO2 set point must be set to the OFF position during the
stabilization period.
To set the Temperature Set Point push one of the up or down arrows once on the Temperature
Display
. The display should start blinking “SP”. While blinking push the Up or Down arrow to move
the Set Point up or down to the desired Set Point. Release the button and when the display stops
blinking it will return to the actual temperature.
To set the OTP Control, set your Main Temperature Control one degree higher than your desired
temperature and turn the OTP Control all the way clockwise. After the incubator has stabilized
turn the OTP Control counterclockwise slowly until you see the red OTP Indicating Light starts to
flash illuminate with the Heating Indicating Light. Then reset the Temperature Control back to your
desired Set Point.
Section
5