5
MODES
STANDBY MODE. Just turn the unit ON. The unit recirculates the water in the BATH, The unit heats up and
maintains 37.0
O
C in the BATH.
THAWING MODE. The unit continues recirculating tempered water through the BATH and starts moving the RACK
back and forth. The hanging plasma bags are pushed against rods in the RACK mixing the plasma in the bags. A count-
down timer is started to display the time-to-completion of thawing. START initiates thawing. Timing out or pushing STOP
stops thawing.
DIAGNOSTIC MODE. Is for technician access. Hold MINUS as you turn the unit ON.
1.
To restore the unit to initial factory settings, press ENTER while still holding MINUS. The unit displays
“UNIT RESET”. Turn the unit off. You have to re-calibrate the temperature after reseting the unit.
2.
“PUMP TEST” is a diagnostic tool to check if each actuator turns on. It is checked only when a pump does
not operate. Release MINUS then push ENTER to verify that you are a technician. The display shows
“PUMP TEST”. MINUS turns on Pump 1, ENTER turns the cam to push the RACK back and forth. Push
PLUS to go to next function.
3.
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.
Calibrate the temperature.
3.
Set the target thawing temperature. The Alarm temperature is 1.0C above the target temperature.
4.
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. Hold or hang your thermometer so the end is in the water in the bath. 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.
