The Rosemount 248 Wireless Temperature Transmitter is a state-of-the-art device designed to deliver reliable and accurate temperature measurements in industrial environments. As part of Emerson's industry-leading wireless instrumentation portfolio, it integrates advanced sensing technology with robust wireless communication to streamline process monitoring and control. The transmitter supports a wide range of temperature sensors, including RTDs and thermocouples, ensuring compatibility with diverse application requirements. Its compact, rugged design enables easy installation in harsh conditions, while the long-life battery (up to 10 years) minimizes maintenance needs. By eliminating the need for wired infrastructure, the Rosemount 248 reduces installation costs and complexity, making it an ideal solution for remote or hard-to-access locations.
Built on the WirelessHART® standard (IEC 62591), the Rosemount 248 ensures seamless integration into existing plant networks, providing real-time data access and interoperability with other HART-enabled devices. The transmitter features self-organizing mesh network capabilities, enhancing signal reliability and network resilience in dynamic industrial settings. With a configurable update rate, users can balance data freshness with energy efficiency, optimizing battery life. Advanced diagnostic tools, such as sensor health monitoring and communication status alerts, empower proactive maintenance and reduce downtime. Additionally, the device complies with global industry standards for safety and performance, including ATEX, IECEx, and FM certifications, ensuring suitability for hazardous areas.
The Rosemount 248 is widely adopted across industries such as oil and gas, chemical processing, pharmaceuticals, and food production, where precise temperature monitoring is critical to operational efficiency and safety. Its wireless capability supports scalable deployments, enabling plants to expand their monitoring systems without costly infrastructure upgrades. By delivering high-fidelity data to control systems or asset management software, the transmitter enhances process visibility and supports data-driven decision-making. Whether used for equipment health monitoring, environmental compliance, or process optimization, the Rosemount 248 exemplifies Emerson's commitment to innovation, sustainability, and the advancement of industrial automation through wireless technology.
| Product Type |
Wireless Temperature Transmitter |
| Model |
248 |
| Manufacturer |
Emerson/Rosemount |
| Input Types |
RTD, Thermocouple, mV |
| Output Signal |
WirelessHART |
| Power Supply |
Lithium Battery |
| Battery Life |
Up to 5 years |
| Accuracy |
±0.1% of span |
Installation Instructions
Installation and Setup of Rosemount 248 Wireless Temperature Transmitter
The Rosemount 248 Wireless Temperature Transmitter is designed for reliable, high-accuracy temperature measurement in industrial environments. To begin installation, first ensure the device is compatible with your temperature sensor (RTD, thermocouple, or dual-sensor configuration). Mount the transmitter in a location that minimizes exposure to extreme temperatures, vibration, or electromagnetic interference. Use appropriate brackets or a sensor-integrated assembly for secure placement. Connect the temperature sensor to the transmitter's terminal blocks, adhering to the wiring diagram specified in the manual (e.g., 2-wire, 3-wire, or 4-wire RTD connections). Verify polarity for thermocouple installations to avoid measurement errors. Install the antenna securely, ensuring it is vertically oriented and unobstructed to optimize WirelessHART communication. Power the device using a compatible lithium battery (e.g., ER26500), ensuring the battery compartment is sealed properly to maintain the IP66/NEMA 4X rating. Before finalizing, perform a visual inspection to confirm all connections are tight and the housing is intact.
Configuration and Operation
Once installed, configure the Rosemount 248 using a HART-compatible handheld communicator or asset management software like Emerson's AMS Trex. Establish a WirelessHART connection by ensuring the device is within range of a gateway (up to 200 meters line-of-sight). Assign a unique tag ID and network ID to the transmitter for seamless integration into the WirelessHART mesh network. Calibrate the device by inputting sensor type (e.g., Pt100, Type J/K) and temperature range parameters. Utilize diagnostics such as loop current test and sensor health monitoring to validate performance. The transmitter supports dual-sensor redundancy; configure fail-safe modes if using a backup sensor. For real-time data, pair the device with a control system via the WirelessHART gateway. Monitor battery life via software alerts, typically lasting 5-10 years depending on update rates. Regularly inspect the device for environmental wear and update firmware as needed. For troubleshooting, leverage LED status indicators: green for normal operation, red for faults, and flashing blue during communication. Always adhere to local safety standards and Rosemount's technical guidelines for maintenance.
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