Keeping up with preventive maintenance is important to ensuring the performance and longevity of any piece of equipment. For medical-grade cold storage, routine maintenance activities are vital to ensuring that the valuable products stored inside are safeguarded from adverse conditions. Fortunately, the tasks required for maintaining medical-grade refrigerators overly cumbersome or time-consuming. In addition, an optional feature has been introduced to make this process even more convenient.
Medical-grade refrigerators normally use probes inserted into a thermal buffer to monitor the temperature inside the cabinet. (This is important because it helps reduce nuisance alarms that can occur if the probes are placed in air with no buffer.) For medical-grade refrigerators, this has traditionally meant the use of a probe bottle filled with a glycerin solution. The temperature of the solution in the probe bottle represents the temperature of the products stored inside the refrigerator.
Probe bottles that are filled with solution require maintenance. They need to be checked periodically and topped off or refilled if the solution has evaporated. (A probe bottle that is low on solution or that has run dry is a common cause of erratic temperatures appearing on the display, nuisance alarms, and unnecessary service calls.) In addition, the probe bottles should be cleaned or replaced on an as-needed basis.
To help reduce the maintenance necessary for solution-filled probe bottles, an optional solid ballast feature is being offered for refrigerators from Helmer Scientific. The solid ballast, made of anodized aluminum, has been specifically designed to have the same temperature response as a solution-based thermal buffer. It also eliminates the effort involved in routine maintenance.
To learn more about the solid ballast option, download the product information, which includes features, specifications, and the results of an Equivalency Study showing the performance of the solid ballast compared to liquid solution.
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