How are the published specifications for PolyScience circulators determined?
The temperature range, temperature stability, cooling capacity and pumping specifications are determined under controlled conditions. These include an ambient temperature of 20°C, 50% relative humidity, Circulator lid on, no external load attached, and where, within range, distilled water is the fluid medium. For temperature measurements below +5C, we use Dynalene HC50 , or 50% ethylene glycol-water mixture. Silicone high temperature fluids are used above 100°C. Your ambient temperature and application conditions may vary from our standard conditions; therefore the results may be somewhat different than published specifications. All specifications are based on actual measurements, not averages as done by some manufacturers.
