Trying to decide which WiFi extender to use can be very difficult. There are a lot of very confusing fact pertaining to the hardware to extend a WiFi signal. Even determining the need to extend your WiFi network can be a matter a guesswork. There are plenty of manufactures offering all types of equipment which […]
Sensors used with the TV2 monitors are of two different types: Wired sensors for TV2-202 monitors DD1 Temperature only (-40°C to 120°C) TSMRH3001 Temperature/humidity (-20°C to 80°C, 5% to 90%) WDP2 Differential pressure sensor (±0.5″wc) TC-x Thermocouples (200°C to 1250°C, type dependent) Wireless Sensors for TV2-201 monitors WS4HETM External Thermistor (-30°C to 80°C) WS4HITMIHM Temperature/humidity […]
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 […]
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 […]
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. […]
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 […]
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 […]
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 […]
