Application Notes; Section 9 - Service And Technical Support - PolyScience 300-048 Manual De Operación

Application Notes

At a fluid's low temperature extreme:
1. The presence of ice or slush adversely affects temperature stability.
2. A viscosity above 10 centistokes adversely affects temperature uniformity.
3. A high fluid viscosity and high pump speed adds heat to the fluid being pumped.
At a fluid's temperature above ambient without refrigeration:
1. To avoid friction heating of the fluid, the viscosity of the fluid should be 10 centistokes or less
2. Heat loss should be encouraged by uncovering the fluid and lowering the pump speed.
At fluid's high temperature extreme:
1. Heat loss from vapor adversely affects temperature stability.
2. To prevent the accumulation of vapors inside the room, the reservoir may need to be placed
3. Use a cover and/or floating hollow balls to help prevent heat and vapor loss.
4. Replenish fluid lost from vapor frequently.

Section 9 - Service and Technical Support

If you have followed the troubleshooting steps outlined in Section 7 and your Circulator still fails to
operate properly, contact the supplier from whom the unit was purchased. Have the following
information available for the customer service person:
— Model, Serial Number, and Voltage (from back panel label)
— Date of purchase and purchase order number
— Supplier's order number or invoice number
— A summary of the problem
and within 15° C of room temperature.
in a fume hood.