Temperature Control Solutions - Labo Plus
Temperature Control Solutions - Labo Plus
Temperature Control Solutions - Labo Plus
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Technical Information | Glossary<br />
At PolyScience, we believe strongly in providing the very best products and the highest level of service to our<br />
customers. While we have tried to provide adequate product descriptions, features and explanations throughout<br />
our catalog, we realize that some customers may be interested in more in-depth information than that listed in the<br />
product pages. Additionally, some customers may not be familiar with the language and terminology used.<br />
The following pages provide explanations of many of the features that are listed within this catalog along with some<br />
guidance on selecting the best product for your application, performance curves, detailed specifications for each<br />
product listed, and additional information about our Company’s services. If you do not find the information you are<br />
seeking please contact our Customer Service and Sales Department; they will be happy to answer any questions you<br />
might have, and assist you in selecting the product best suited to the needs of your application.<br />
Glossary<br />
Air-Cooled (Chiller)<br />
A type of chiller that exhausts the heat absorbed from<br />
the process to the surrounding air. Most of the chillers<br />
listed in the catalog are air-cooled (unless otherwise<br />
specified). The cooling efficiency of air-cooled chillers is<br />
directly related to ambient air temperature.<br />
Ambient Air <strong>Temperature</strong><br />
The temperature of the room in which the Circulator,<br />
Chiller, etc., is located. Refrigerated equipment is<br />
generally required when the application temperature<br />
must be controlled near or below the ambient room<br />
temperature.<br />
Ambient <strong>Temperature</strong> Range<br />
This represents the highest and lowest ambient air<br />
temperatures at which the Circulator or Chiller was<br />
designed to operate.<br />
Calibration Capability<br />
The ability to match the reading of a device to that<br />
of a known standard or another device. PolyScience<br />
Circulators, Chillers, and Digital General Purpose Water<br />
Baths all feature calibration capability.<br />
Centrifugal Pump (magnetic drive)<br />
Available on many PolyScience Recirculating Chillers,<br />
this type of pump provides higher relative flow rates<br />
at lower pressures and is suitable for applications<br />
that are in close proximity to the chiller or require<br />
lower pressure. Centrifugal pumps are generally more<br />
sensitive to pressure drops than other types of pumps.<br />
Chiller/Recirculating Chiller<br />
A closed-loop refrigerated system designed to cool an<br />
external device. In general, Chillers have more cooling<br />
capacity and are capable of higher flow rates and higher<br />
fluid pressures than can be achieved by Refrigerated<br />
Circulators.<br />
116 | Phone: 800-229-7569 • +1-847-647-0611<br />
Circulator/Circulating Bath<br />
A general term referring to a category of temperature<br />
control devices. See Refrigerated/Heated Circulating<br />
Bath, Heated Circulating Bath, and Immersion Circulator.<br />
Closed-Loop Circulation<br />
This is generally used in reference to systems or<br />
applications where liquid is pumped from a Chiller or<br />
Circulating Bath through an external device such as<br />
a laser and then returned directly to the Chiller or<br />
Circulating Bath. Such systems are “closed” to the<br />
atmosphere. Closed-loop circulation may be achieved<br />
with both pressure only Simplex and pressure/suction<br />
Duplex pumps. All PolyScience Circulating Baths and<br />
Chillers are capable of closed-loop circulation.<br />
Cool Command<br />
A modulated refrigeration system that allows<br />
refrigeration to be activated at higher temperatures,<br />
providing faster cool downs and optimizing energy<br />
efficiency.<br />
Cooling Capacity<br />
This is the amount of heat removal that a refrigerated<br />
device, such as a Chiller or Refrigerated Circulator, can<br />
provide at a given temperature. It is generally stated in<br />
watts or BTUs/hour. It may also be expressed in tons.<br />
Duplex Pump<br />
A type of pump that provides both pressure and suction,<br />
making it suitable for both open-loop and closedloop<br />
applications. PolyScience Circulating Baths with<br />
Performance and Advanced Series <strong>Control</strong>lers are<br />
equipped with Duplex pumps.<br />
DuraTop<br />
A precision molded phenolic top plate that remains<br />
cooler at high temperatures, is highly resistant to all<br />
but the strongest laboratory chemicals, and is easily<br />
cleaned and/or disinfected. DuraTop is standard on<br />
all PolyScience Circulating Baths, Open Tank Systems,<br />
Viscosity Baths, Calibration Baths, and both the<br />
Histology and Coliform Baths.
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