Wireless Temperature Measurement - Emerson Automation Experts

Wireless Temperature Measurement

It’s hard to read technology-based news sources without finding discussions on the Internet of Things (IoT). In looking at the Industrial Internet of Things (IIoT) from a process manufacturing and producing standpoint, wireless measurement devices play a big role IIoT.

Emerson's Cheng Vue

Cheng Vue
Temperature Marketing Engineer

I wanted to share a quick 2:12 YouTube video, Rosemount 248 Wireless Temperature Transmitter featuring Emerson’s Cheng Vue. Cheng introduces this new device which provides a cost effective solution for wireless process monitoring, based on the IEC 62591 WirelessHART communications standard.

He opens describing the 248 as a single input transmitter with an integral antenna and optional five-digit LCD display configured via a HART Field Communicator or AMS Device Manager.

Rosemount-Power-ModuleHe describes the housing that suitable for tough environments including offshore, salt-spray marine environments. The wireless temperature transmitter opens up many measurement opportunities that were previously difficult or impossible to reach due to location and available wiring infrastructure.

Cheng shows how field replacements can be made to the power module without removing the transmitter. For more on the specifications, here is the product data sheet and configuration data sheet. You can also contact a temperature measurement expert to discuss your application.

To connect and interact with other temperature measurement peers, join the Temperature group in the Emerson Exchange 365 community.


  1. Here’s why, in my personal opinion. Temperature is a very useful indicator. For instance, temperature is a leading indicator of several equipment problems such as motor winding issues, overloading, bearing/lubrication problems etc. Others include boiler tubes and other hot spots. Temperature can also be used as an external “switch” to detect if wells are flowing or not. Temperature transmitters is probably the most common instrument in a plant. Yet I personally believe there are hundreds if not thousands missing temperature points around the plant. Data is either collected manually using temperature gauges, using a temperature gun, or not collected at all. Modernizing an existing plant with a second layer of automation, a pervasive sensing infrastrucutre, allows all this data to be collected automatically. In my personal oppinion, installing thousands of wires and system I/O is impractical and even risky, so wireless is the most practical way to do it. A single plant-wide WirelessHART infrastructure handles all these temperature measurements, plus other types of missing measurements as well including pressure, level, and acoustics. These improve productivity, but also help reliability/maintenance, energy efficiency, and can reduce HS&E incidents and response times. See further explanation in these articles:

    Beyond the Control Room

    Second Layer of Automation

    Maintenance with a Hart

    Smart Sensing: Situational Awareness

    Are you sending people in harm’s way?

    Wireless for Asset Uptime

    For a new plant, pervasive sensing infrastructure beyond the P&ID has to be planned from the very beginning of a project

  2. Jim Cahill says:

    Thanks for adding your perspectives and additional articles for our readers, Jonas!

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