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Profile Chambers Data Loggers Controllers Service / Maintenance Refurbish Calibration Chamber Hire Vibration Systems Used Chambers To address special requirements we are able to offer several accessories for the MRTP systems. Accessories are available such as:  Adapter plate  Dry Box Desiccator  Hold Down Clamp  Low Pressure Nitrogen Purge Kit  High Pressure Nitrogen Purge Kit |
Mechanically Refrigerated Thermal Platforms and Cryo-PlatesMRTP 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. 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:
Depending on the use or the space intended for the MRTP, two configurations are available. A flexible umbilical connects the thermal platform to the chiller cabinet or the platform is attached to the front of the cabinet and integrated into a work shelf.
Product Information:
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Rapid heating and cooling rates down to -25° C and a range to -35° C. Single Stage MRTP systems heat and cool a thermal platform very efficiently. They have rapid heating with good cooling rates down to about -20° or -25° C. They will cool down below -35° C but the rate of change decreases rapidly below -20° or -25° C. This is because a single stage system uses a single compressor and a single type of refrigerant. The refrigerant used has a boiling point near -40° C. Once the temperature differential between the thermal platform and refrigerant is less than 10° C then thermal transfer is slower and the platform cools much less rapidly.
Rapid heating and cooling rates down to -55° C and a range to -65° C. Cascade MRTP systems heat and cool a thermal platform very efficiently. They have rapid heating with good cooling rates down to about -50° or -55° C. They will cool down below -65° C but the rate of change decreases rapidly below -50° or -55° C. This is because the refrigerant used has a boiling point near -70° C. Once the temperature differential between the thermal platform and refrigerant falls below 10° C, then thermal transfer is slower and the platform cools much less rapidly. A cascade system uses two compressors and two different types of refrigerant. This allows it to economically and reliably reach temperatures that are much lower than a single stage system is able to achieve.