Shown – Under Becnh MRTP with 12×24″ Thermal Plate and Optional Dry-Box Dessicator
The ESS, Inc. MRTP thermal platform systems rely upon a closed loop mechanical refrigeration cooling system. This eliminates the need for expendable refrigerants such as liquid nitrogen and liquid carbon dioxide. Eliminating the non-reusable refrigerants also eliminates the purchasing cost and handling expenses, not to mention the associated icing and water condensation. To learn more about this question, please read the white paper entitled Environmental Testing. See also our MRTP Configuration Choices page.
Shown – Under Becnh MRTP with 12×24″ Thermal Plate Rear View with Umbelical
The MRTP utilizes an efficient mechanical refrigeration system that re-circulates the refrigerant in a closed loop system. Only environmentally friendly zero-ozone depleting refrigerants are used. Proprietary design features provide fast ramp rates with efficient heat removal. The system is portable and a single AC outlet is all that is needed to operate it. The system normally uses an air-cooled condenser, which rejects a certain amount of heat into the room. If a water cooling source is available, the system can operate with a water-cooled condenser. If many systems will operate in the same room a water cooling circuit should be considered to remove the heat rejected by the refrigeration cycle.
There are two types of MRTP systems. The first type is called single stage and uses one refrigeration loop to cool the thermal platform. The second type called cascade uses two refrigeration loops in series enabling the temperature of the thermal plate to be as low as -80ºC.
Depending on the use or the space intended for the MRTP, several configurations are available. The Upright configuration has a flexible umbilical that connects the thermal platform to the chiller cabinet and the platform can be used right on top of the cabinet or on a bench top. Second, the Under-Bench configuration is very similar except that the cabinet is wider and not as high so that the it can be operated under a table or work bench while the plate (attached with an umbilical) can be used above. Third, the Console configuration, built with a standard rack-mount width can be mounted within your rack system or used stand-alone. It presents a platform attached to the front of the cabinet. Optional shelves provide additional workspace. Fourth, we offer the Benchtop Unit. To address special requirements, ESS, Inc. offers several Accessories for its MRTP systems. Accessories are available such as a polycarbonate cover, an adapter plate, a hold down clamp, a clam shell dry-box desiccator, a low pressure nitrogen purge kit and a high pressure nitrogen purge kit.
Several standard sizes for the thermal plate are listed in the MRTP ordering information form