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New Norlake Ultra Low Freezers Have Faster Temp Recovery than Other Models

Published: Thursday, May 24, 2012
Last Updated: Thursday, May 24, 2012
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Positive feedback received from Norlake ultra low freezer beta test sites.

Several features of the new Nor-Lake line of -86⁰C ultra-low temperature freezers now offered by Tovatech were identified as extremely useful by clinical lab staff during beta tests, according to Tovatech director Dr. Rachel Kohn. “We were pleased to hear that a beta test lab is now employing the Norlake Scientific Select ultra low freezer to store everyday samples largely because of its rugged construction and extremely fast temperature recovery after door opening,” Dr Kohn reports. “The latter feature helps prevent temperature alarms from sounding in their control center. The lab now uses their other ultra low freezers to store samples that are not handled on a routine basis.”

Lab personnel also commented that transferring samples to the Norlake Select ultra-low freezer was facilitated by its internal design, which readily accepts rack systems and storage containers from other manufacturers’ models. These narrow profile units are available in 18.9, 23.1 and 27.5 cubic feet capacities, each with 5 internal compartments with separate, latched insulated doors and adjustable shelving. Along with optional inventory racks, cell dividers and fiberboard storage boxes the design minimizes content exposure to ambient air.

Ultra-Low Freezer Content-Protection Features

These scientific ultra low temperature freezers can be set and display temperature in 0.1⁰C increments from -50⁰C to -86⁰C. Standard features include 24/7 alarming for internal and ambient temperature, power failure, and door ajar. Remote alarm contact connections alert personnel in other areas in the lab. Each lab freezer’s door-mounted eye-level programmable logic microprocessor controller (PLC) is fitted with a real-time clock and provides event logging alarming history, advanced alarms, alarm test, and memory functions all with battery backup. Operating parameters are password protected. An optional chart recorder is available for GLP record keeping.

Compressor performance is monitored and automatically adjusted to internal and external conditions. Operators can program a delay in compressor restart after a power failure to help avoid false starts. Other equipment protection is provided by surge protectors and a boost/buck system to ensure proper operating voltage.

As an added convenience the Nor-Lake Select ultra-low temperature freezers have a door-mounted dry erase board and a pocket organizer for document storage. They come with an 18-month parts and labor, and 5-year compressor warranty.


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