6
OPERATION
4.1
Check power supply against unit serial plate. They must match.
4.2
Plug service cord into the grounded electrical outlet.
4.3
Push the power switch to the I/On position, and turn the Overtemperature Thermostat to
its maximum position, clockwise using a coin or flat edged tool.
4.4
Set Main Temperature Controller:
Enter desired set point temperature. To enter set
point mode on the controller, press either the Up or Down arrow pad one time. The
digital display will start to blink, going from bright to dim. While blinking, the digital
display is showing the set point. To change the set point, use the Up and Down arrow
pads. If the arrow pads are not pressed for five (5) seconds, the display will stop
blinking and will read the temperature of the unit. Note that the Overtemperature
Thermostat should be turned to its maximum position, (clockwise) until the unit has
stabilized at desired set point temperature. Allow the incubator at least 24 hours to
stabilize.
4.5
Calibration:
It is recommended that calibration is done once the unit is installed in its
working environment and has been stabile at set point for several hours. Place a
certified reference thermometer in the chamber. Be certain the thermometer is not
touching any shelving. Allow the temperature to stabilize again until the thermometer
reads a constant value for one hour. Compare the digital display with the reference
thermometer. If there is an unacceptable difference, put the display into calibration
mode by pressing both the Up and Down arrow pads at the same time until the two
outside decimal points begin to flash. While the decimal points are flashing the display
can be calibrated by pressing the Up or Down arrow pads until the display reads the
correct value. Allow the incubator temperature to stabilize again, and recalibrate if
necessary.
4.6
Set Overtemperature Thermostat:
As mentioned previously, the Overtemperature
Thermostat should be initially set to its maximum position, (clockwise), to allow the unit
to stabilize. Once the incubator is stabile at the desired set point, turn the
Overtemperature Thermostat counterclockwise until the OVERTEMPERATURE
ACTIVATED light turns on. Next, turn the Thermostat clockwise just until the light turns
off. Then turn the Thermostat clockwise 1/16 of an inch past the point where the light
went out. This will set the Overtemperature Thermostat at approximately 1
C above
main Temperature set point.
4.7
Accessory Outlet:
This unit has been supplied with a 1 amp accessory outlet inside
the chamber to provide power for equipment such as magnetic stirrers, rockers, etc. Be
certain the apparatus draws 1 amp or less. The power switch on the front panel controls
power to the outlet. Note that the apparatus may provide additional heat that could
affect the temperature range of this incubator. It is recommended that testing be done
with the incubator and any accessory equipment to insure that the desired operating
conditions can be met.
Section
4