Brookfield Cooler, TC-351 - Manual (Page 5)

6
APPLICATION NOTES
At fluid's low temperature extreme:
1. Presence of ice or slush adversely affects temperature stability.
2. Viscosity above 10 centistokes adversely affects temperature uniformity.
3. High fluid viscosity and high speed pumping generates heat in the fluid.
2.5 Operation
1. Depending on your application, connect the unit as shown in Figure A or B. When connecting
tubing to the fittings at the back of the unit, use the lower fitting as the inlet for the circulated fluid.
2. First, fill the circulator with fluid and power on circulator.
3. Set the circulator's temperature. After the circulator's temperature stabilizes, turn the cooler on.
APPLICATION NOTES
1. Your application may require fluid to be pumped through one or more external systems as in Fig. A.
The limitations are: the pump capacity; the unit's cooling capacity; and it must be a closed system.
2. The circulator must have adequate heating capacity in order to overcome the cooling effect of the
cooler. If the heating is insufficient, the fluid will continue to be cooled below the set temperature
and lack of control will result.
3. Fluid may need to be added to the circulator reservoir to compensate for fluid pumped into tubing,
the cooler and the external device.
Section 3. Maintenance
3.1 Required Maintenance
The refrigeration condenser fins are located just behind the side grill holes. Dust that accumulates
reduces the amount of cooling power available. The dust should be blown out periodically with
compressed air. All other items are permanently lubricated and need no attention.
Device to be
operated at
controlled
temperature
Input
Input
Fig. A - Interconnection of the flow-through cooler,
circulator and device at a controlled temperature
Fig. B - Interconnection of the flow-through cooler and
circulator when tempering samples in the circulator
Output
Output
Circulator
Circulator
Flow-Through Cooler
Flow-Through Cooler