irTis BenchTop 2K, 4K and 6
Optional Components
Rev 007, 10/11 31
© SP Scientific 2011
BenchTop Cold Plate
The optional BenchTop cold plate can be cooled to -40 °C within 30 minutes when
fully insulated and covered. The cold plate will remain lower than -40 °C after the
cover is removed. These specifications are based on SP Scientific test data from
similar units operating with no load.
Initial Setup of the BenchTop Cold Plate
Remove all packing materials carefully and inspect for shipping damage. In the event
that shipping damage has occurred, retain all packing material and immediately
contact your freight carrier.
PROPERTY CAUTION! THE COLD PLATE IS CONNECTED TO THE BENCHTOP UNIT BY
A FLEXIBLE HOSE. THE FLEXIBLE HOSE IS CHARGED WITH REFRIGERANT AND
THEREFORE SPECIAL CARE SHOULD BE TAKEN WHEN REMOVING THE COLD PLATE
AND BENCHTOP UNIT FROM THE SHIPPING CONTAINERS. THE FLEXIBLE HOSE MAY
BE SHAPED OR FORMED WHEN THE UNIT IS AT ROOM TEMPERATURE. DO NOT BEND
THE HOSE WHILE AT LOW OPERATING TEMPERATURES.
1. Position the BenchTop unit on a stable, flat surface. The cold plate must be
fully insulated and have a removable cover (i.e., ½-inch thick Styrofoam board
or polyurethane foam). This will ensure that the lowest possible temperatures
will be achieved. The hose between the plate and the unit is very flexible and
can also be inserted into the rear of the unit (approximately 10 inches) so that
the length can be adjusted.
2. Verify that the outlet you intend to use provides the same voltage, frequency
and ampacity listed on the serial tag of your unit (i.e., 100/115 Volts, 15
Amps, 60 Hz).
3. Verify the shelf thermocouple probe is inserted into the well at the rear of the
cold plate, and the thermocouple connector is plugged into the shelf probe
receptacle at the rear of the BenchTop cabinet.
Cold Plate Operation
1. Ensure that the power cord is plugged in. Switch the circuit breaker on the
rear of the BenchTop cabinet to the ON position.
2. Press the COND button on the front panel of the BenchTop to start the
compressor and begin cooling the cold plate. Wait approximately 30 minutes
for the condenser temperature to reach -40 °C. After about an hour, the unit
will be capable of achieving lower temperatures (i.e., -50 °C).
3. The cold plate is now ready for use.
Note: When the cold plate is in operation and no product is being added, the cold plate
should be covered to prevent frost build-up.
4. When finished, press the COND button to disable the refrigeration system and
disable cooling to the cold plate.
PRACTICAL OPERATING TIP. THE ONLY BUTTON REQUIRED FOR OPERATING THE
COLD PLATE IS THE CONDENSER (COND) BUTTON. THE DEFROST, VACUUM AND
AUTO BUTTONS DO NOT HAVE A FUNCTION FOR THE COLD PLATE APPLICATION.
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