5
MODES
STANDBY MODE. Just turn the unit ON. The unit heats up and maintains 37.0
O
C in the BATH.
THAWING MODE. The unit recirculates tempered water through the bladders, rocks the BATH and RACK, times the
thawing and monitors for leaks. Pushing START initiates thawing. Pushing STOP stops thawing.
DIAGNOSTIC MODE. Hold MINUS as you turn the unit ON. DIAGNOSTICS is displayed.
1.
To restore the unit to initial factory settings, while still holding MINUS press ENTER. The unit displays “UNIT
RESET”. Turn the unit off. You have to re-calibrate the temperature after resetting the unit.
2.
To proceed to diagnostics without resetting the unit, release MINUS and press ENTER. Push and release PLUS to
advance to the different tests.
3.
“PUMP TEST” is a diagnostic tool to check if the pump and rocker motor turn on. The display shows “PUMP
TEST”. MINUS turns on the Pump, ENTER turns the rocking motor. Push PLUS to go to next function.
4.
Overtemperature Alarm Test. Hold MINUS as you turn the unit ON. DIAGNOSTICS will be displayed.
Push ENTER. Push and release PLUS until ALARM TEST is displayed. Push ENTER, the heater will
heat continuously and the pumps will turn on. When the temperature reaches 1.0C above the target
temperature the alarm will sound. Turn Off the unit. If alarm does not sound, contact CytoTherm.
Alarm test should be performed every 3 months as part of unit maintenance.
PROGRAM MODE. Allows you to:
1. Program the thawing time.
2. Select whether to continue thawing when timed out.
3.
Calibrate the temperature.
4.
Set the target thawing temperature. The Alarm temperature is 1.0C above the target temperature.
5.
Select the signal when thawing is done (continuous or pulsed).
Enter PROGRAM MODE by holding ENTER while turning the unit ON. Follow the displayed instructions to program.
Pushing PLUS advances the menu to the next parameter.
Programming the Thawing Time. When the thawing time is displayed, press MINUS because you want to change the time.
Use PLUS or MINUS to set the desired new thawing time, press ENTER to program in the new time. Turn the unit off.
Calibrating Temperature. Turn the unit on and let it heat up to 37.0
o
C. Check the displayed temperature with your
accurate thermometer. There is a covered THERMOMETER WELL on the right side of the RACK. It is covered with a
cover bar. Rotate the cover bar to expose the thermometer well. Place your thermometer into the THERMOMETER
WELL. The thermometer stem should be at least 13 cm. (5”) long. If the displayed temperature needs to be changed, turn
the unit off. Enter PROGRAMMING MODE by holding ENTER as you turn the unit on. When the thawing time is
displayed push PLUS until the display shows “CALIBRATE TEMPERATURE”. Push MINUS because you want to
change the displayed temperature. Use PLUS or MINUS to make the displayed temperature agree with your
thermometer. Push ENTER to record the calibration. Turn the unit off. If the unit can not be calibrated, or if the
calibrated temperature is not stable, have a technician check the unit. See TECHNICIAN FUNCTIONS.
SWITCH FUNCTIONS
There are 6 switches on the front panel:
START. Starts function.
STOP. Stops function.
ENTER. Records parameter changes.
PLUS. Steps through parameters and increases value of parameter.
MINUS. Allows change in parameter and decreases value of parameter.
Sketch of FIN logo. Not currently used. Future expansion
