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Wireless solution to temperature monitoring

01 April 2011

Data logging experts Signatrol has launched Spydaq, a new low-cost wireless temperature and humidity monitoring system for the food manufacturing industry

Spydaq allows users to deploy sensors in various locations without the restrictions and cost of hard wiring and monitor results from a PC, either locally or any where in the world via web access with easy to use software.

Ideal for food manufacturing and warehouse sites where temperature control is essential, Spydaq offers an affordable alternative to hard wired monitoring systems. There is no capital investment to make since Signatrol is offering the hardware free of charge in return for use of the software especially developed for use with Spydaq.

At the heart of the Spydaq system is a BaseStation which receives data from up to 16 remote transmitters and passes it to a PC either via a Modbus RTU or by GPRS direct to the Spydaq website.

Each remote transmitter can have up to three inputs – temperature, relative humidity and universal – and sends it via a licence-free ISM radio band using a sophisticated data redundancy system (patent pending) to ensure virtually error free data acquisition. Antenna diversity is another feature that is also provided and which enables multiple antennas to be connected to ensure reliable radio connection from diverse areas.

Users can choose from up to 16 transmitters to be located at points for monitoring. Types available include a range of room sensors, duct sensors, external sensors, immersion sensors, pipe mount sensors and fridge/freezer/oven sensors, which can be combined to suit the required application. A typical application would be around six sensors, with larger more complex sites requiring all 16 sensors.

A choice of operating frequencies means that two systems can be run concurrently side by side providing up to 32 transmitters for even larger applications.

Spydaq’s wide range of inputs means that by connecting to the appropriate sensor, virtually any parameter can be measured and accurately logged.

The BaseStation also checks locally for alarm conditions via its inbuilt audio and visual alarms. Alarming locally means that any potential trouble spots can be identified quickly and corrective action taken, often saving vulnerable goods from damage or rapid decay. SMS alarm messages can also be automatically sent to a number of mobile phones to advise users remotely that an alarm has occurred.

Management of the Spydaq system via PC, with accurate results available on-line at any time allows for accurate monitoring of temperature even from remote locations. This is particularly suitable to multi-site operations allowing the site or operations manager to easily track temperature control at any site, using real time information rather than having to rely on paper based readings.

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Small investment in temperature control