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Section IV OperationSection IV Operation
Section IV OperationSection IV Operation
Section IV Operation
OperationOperation
OperationOperation
Operation
Before starting the unit, double check all electrical connections and make
sure the cooling probe is properly immersed in the work area.
All CryoCools are operated by a single power switch.
The CC-100 has three lights: one indicates the unit is operating, a second
indicates the high stage compressor is operating, and a third indicates the
low stage compressor is operating.
Once the unit is turned on, the refrigeration system will reduce the tempera-
ture of the cooling fluid in the work area to the lowest achievable temperature
under the existing heat load conditions.
For best results, stirring or agitation in the work area is recommended.
When not stirred, cooling capacities will be reduced and the work area will
show temperature layering, with the coldest, most dense zone at the bottom.
When the unit is shut off, wait approximately five minutes before restarting.
This allows time for the refrigeration pressures to equalize. If the pressures
are not allowed to equalize, the compressor will short-cycle (clicking sound)
and no cooling will occur.
TemperatureTemperature
TemperatureTemperature
Temperature
AdjustmentAdjustment
AdjustmentAdjustment
Adjustment
If temperature control is desired, a Thermo NESLAB Cryotrol Temperature
Controller is required. Refer to the Cryotrol Temperature Controller Instruc-
tion and Operation Manual for installation and operation instructions.
Never operate any CryoCool unit above -25°C.Never operate any CryoCool unit above -25°C.
Never operate any CryoCool unit above -25°C.Never operate any CryoCool unit above -25°C.
Never operate any CryoCool unit above -25°C.
Older Cryotrols are equipped with a round 8 pin connector. If you wish to
connect your older Cryotrol unit to the CryoCool, an adapter cable is avail-
able from Thermo NESLAB. Contact our Service Department for more
information (see Preface, After-Sale Support).
A Thermo NESLAB Exatrol Digital Temperature controller may also be used
to control temperature. The Exatrol is designed for more precise temperature
control and offers tighter temperature stability than the Cryotrol.
Refer to the Exatrol manual for additional information.
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