Shellab SRI3-2 - Manual (Page 6)

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