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Three easy steps: Getting temperature sensors into a refrigerator

Three easy steps for getting a temperature sensor into a refrigerator. All refrigerators have a temperature probe which is connected to the compressor to regulate the internal temperature of the refrigerator.  However, the need exists for a second temperature sensor to trigger an alarm or keep a record of the internal temperature.  These temperature sensors […]

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Negative Pressure in a Positive Pressure Cleanroom

Not too long ago we were asked by a pharmaceutical manufacture why our TV2 pressure monitor showed a negative pressure indication on the Max/Min display. We investigated and found that if you quickly open the door into the room the pressure drops down into the negative range.  This had always been the case but he […]

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JCAHO Standards

JCAHO temperature standards, JCAHO tissue standards, tissue storage temperatures JCAHO Standards The Joint Commission of Accreditation of Healthcare Organizations, issued a new standardized procedures on storing tissue samples. This new standard, PC.17.10 applies to organizations that store or issue tissue, which may include areas outside of the clinical laboratory, for example, surgery and outpatient centers and tissue banks. […]

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Logging temperature

Data loggers: One way to monitor a freezer or cooler’s temperature Data loggers are devices that can be used to sample and store temperature and/or humidity at regular intervals. Before data loggers, chart recorders used paper charts to record the information. This was useful but the amount of data they could display was limited and if the user […]

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How a Refrigerator Maintains its Temperature

Recently we received a call from a panicked TV2 user. He sent a copy of his temperature history showing a number of alarms. He was convinced that the TV2 was giving false alarms. He also sent, at my request, a copy of his alarm settings. The alarm setting were set so that any time the […]

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Using Dormitory type refrigerators to store vaccines

An NIST study in 2009 determined that dormitory type refrigerators are completely inadequate for vaccine storage. The study which used 19 data loggers to record temperature in these small refrigerators concluded that: “ From these results, it is clear that the dormitory-style refrigerator can not be relied on to maintain vaccine storage temperatures, regardless of […]

A high temperature data logger

Many industries need to monitor heaters’ or ovens’ temperature over time. Most companies employ high temperature data loggers and/or temperature chart recorders since even small temperature changes, if unnoticed, can cause serious problems. Installing and operating a high temperature data logger (tips) Installation and set-up may require no more than an hour from the moment you take a high temperature data […]

TV2 Products Warranty

Warranty The TV2 line of Instruments is warranted by the manufacturer to be free from defects in material and workmanship for a period of twelve months after delivery. In the event of a claim under this warranty, the product or part must be returned to the factory for repair or replacement (shipping prepaid) with a […]