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How to Select an Under Counter Lab Freezer

underbench freezers

underbench freezers

How to Select Under The Counter Lab Freezers

An underbench freezer may be the solution if room is limited for safely keeping temperature-sensitive medications, lab samples, or expensive biological specimens. Laboratory freezers are more advanced than those used in homes or businesses. They have features that are necessary for protecting contents from temperature changes. This post contains information that will aid researchers in their choosing process.

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What to consider when selecting under counter lab freezers

Let’s start by putting the dollar sign in context. These units will be more expensive than comparable residential or commercial units. You (and your accounting department) must weigh the lab freezer’s purchase price against the value of its contents. Many medications, specimens, and biological samples have specific storage temperatures.

Temperature excursions above or below certain levels may result in irreplaceable losses in some circumstances. In the article Cost of Research Lab Freezer Loss Claims on the Rise, the cost of loss due to freezer malfunction is described.

Start with the Basics

Where will the unit be placed?

If you intend to put your unit in an existing facility, double-check that it will fit. New construction gives you more choices. Allow enough room around the lab freezer according to the installation instructions to ensure proper cooling system airflow. Because extension cords are not authorised, a local power source is required.

How much storage capacity do you need?

These machines have limited storage capacity by definition, although there are storage capacity options available. You, as the user, will have calculated the amount of storage space necessary over a specific time period. What matters is that a lab freezer that is fully stocked is more efficient than one that is nearly empty. Make sure your lab freezer isn’t too full. Tips on storage can be found in the section below.

What are your storage temperature requirements?

The temperature of undercounter laboratory freezers ranges from -150 to – 250 degrees Celsius. If you need lower temperatures, ultra-low temperature freezers are a good option, albeit they aren’t available in under-counter designs.

Features Essential to Protecting Lab Freezer Contents

Temperature Control

High-end machines have advanced temperature control mechanisms. Users can adjust specific refrigeration temperatures within a range of -15°C to -25°C for freezers using digital LED display microprocessor controls. The temperature ranges offered vary depending on the type, but the important is that there is control and that the temperature is displayed on the equipment’s outside.

Equipment with dial temperature settings is less expensive, but it provides less precise temperature control.

Monitoring and Alarming

To maintain important products, more than just correct refrigeration selection is required. A power outage or malfunction might result in significant losses. Monitoring and recording storage temperatures is critical for GLP compliance and to give backup during FDA and other regulatory agency audits.

Temperature monitoring, alerting, and record-keeping are all important considerations when choosing a lab freezer. We’ll show you several instances, but keep in mind that features differ per unit model.

A glycerin-filled bottle with a temperature sensor is placed inside the freezer and connected to an outside control module with alert in digital thermometer alarms. Free-standing temperature chart recorders, which use internal sensors and are placed next to or on top of the freezer cabinet, offer paper records of temperature history.

Refrigerator or freezer cabinets with digital LED microprocessor controllers that can be adjusted to specified temperatures. Temperature excursions above or below the set parameters trigger auditory and visual alarms on these controllers. Some types include remote alarm contacts that can be used to notify staff in different parts of your facility. A built-in digital display with high/low alerts is another form of alarming device.

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