Laboratory Temperature Monitoring & Alarming Using a Data Logger
By: CAS DataLoggers
CAS DataLoggers provided the laboratory temperature monitoring (https://www.dataloggerinc.com/
We supplied the lab with an Accsense VersaLog TC Temperature Data Logger (https://www.dataloggerinc.com/
The Accsense VersaLog thermocouple data logger measures ambient temperature on 1 channel and also logs temperature on up to 7 external input channels which can connect to all types of thermocouple (https://en.wikipedia.org/
The thermistor data logger also has one channel measuring the temperature of its environment along with 7 external channels to record data from thermistor sensors. It accepts standard thermistors that have a resistance value of 10K at 77°F (25°C). Using thermistors gives the lab high accuracy and reliable incubator measurement and alarming.
These battery-powered, standalone recorders are cost-effective compared to the cost of an external probe while the 16-bit analog-todigital converter meets the lab's high-resolution requirements. For extended logging, Accsense VersaLog products all feature a rugged, splash-resistant aluminum enclosure, and their internal electronics are protected against moisture by a conformal coating. Due to their small size and light weight, the data loggers can be installed anywhere within a facility, preventing the need for long sensor cables. In the event of expansion, users can utilize multiple data loggers for a truly comprehensive laboratory temperature monitoring solution to record a large number of channels.
Accsense VersaLog temperature recorders are accessible via USB, modem or Ethernet connections for easy local and remote access. It's easy for technicians to power the data loggers and connect them to a PC via USB. The loggers store data in non-volatile flash memory for easy retrieval. The data logger's large 4MB memory stores up to 2 million measurements and lets users log for extended periods with the choice to stop or overwrite logging when the memory is full.
Users can program the data loggers ahead of time and start logging when needed. Two configurable alarm thresholds are available per channel, and the ALARM1 & A2/EXT terminals can be configured as alarm outputs so users can stay on top of sudden changes in their parameters. The onboard LED lights in red when in alarm condition, and with purchase of VersaLog SiteView software, the data loggers also report their alarm status to a host PC via USB, modem or Ethernet. Alarm delay is programmable at 0-10 minutes delay with 1-minute increments.
The Windows-based VersaLog SiteView (https://www.dataloggerinc.com/
Users can view all alarm triggers, zoom in on important data, add comments and label graph functions, and view dynamic statistics to provide a detailed view of results. Users can set low and high programmable alarm thresholds for the alarm outputs and trigger on/off external alarm devices such as warning lights, horns or alarm telephone dialers so the facility is alerted whenever inventory is threatened.
Our Accsense VersaLog data loggers now ensure that this lab's users are never without a quick way to check their data. The lab now has its own distributed laboratory temperature monitoring system, demonstrating how data loggers can be used to easily monitor, alarm and log all refrigeration units and temperature sensitive environments across the standard laboratory temperature range.
Accsense VersaLog Product Manager Pete Martin comments, "Accsense VersaLog offers you 7-8 channel monitoring with high-precision data and your choice of connection. They're great for monitoring and alarming everything from medical storage units to incubators, and you'll find them a lot less expensive than chart recorders, and there is no maintenance or paper or pens to replace. Their memory, accuracy and software feature list is unmatched for the price."
For more information on Accsense VersaLog data loggers (https://www.dataloggerinc.com/