![]() ![]() However, RS232 cable lengths are limited to 15 metres. The RS232 interface has been popular in the past for sensors with built-in electronics. High power, IP rated industrial transmitters are also available. Models are available for Temperature, Humidity and Barometric Pressure. The Omega Z-Series feature attractive wall mount, battery powered transmitters with built in sensors. A weather seal protects the internal sensor connections. These devices transmit the same data as those in standard enclosures, but have a much longer battery life (up to 3 years), since they may be installed in remote or difficult to access locations. In addition to temperature readings, these units transmit battery status information which help ensure timely battery replacement and prevent unexpected sensor-down situations.įor outdoor applications or harsh environmental conditions, a wireless IP or NEMA rated transmitter, shown on the left, the UWTC-NEMA Enclosure can be used. Depending on this sampling rate, battery life can be a year or more. The simplest transmitting devices, like the wireless thermocouple connectors shown on the left, the MWTC and UWTC (Patented by Omega Engineering, Stamford, CT), accept a plug-in sensor and transmit the data to a receiving device at programmable intervals of 5 seconds to 1 minute. The various types of transmitting units available will handle nearly any type or model, and, depending on obstructions and other factors that affect transmission, can have ranges of up to 120 metres, so there are not many applications that cannot be addressed. The temperature sensors most commonly in use are thermocouples and Pt100 RTDs (100 ohm platinum resistance temperature detectors). As a bonus, most of the devices shown also work with humidity and barometric pressure sensors. In any case, it is certainly worth a closer look. There are now so many wireless transmitting and receiving devices available for temperature measurement that nearly any application can benefit from their use. For simpler one or two sensor applications, it means installing the wireless sensor, setting up the receiver, and being done. For complex, multi-sensor applications, a Wireless Temperature Monitoring system provides a means to eliminate the nuisance of running multiple leads over long distances through harnesses or conduit to a control room, instrument panel, or equipment rack, while keeping track of which leads are which. Recently, the growth of wireless instrumentation technology, along with some clever innovations, has provided new ways to apply temperature measurement sensors combined with personal computers to collect, tabulate, and analyse the data obtained. Temperature is certainly among the most commonly measured parameters in industry, science, and academia. A Wireless Temperature Monitoring system delivers Great Benefits for Temperature Monitoring ![]()
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