The Rosemount 248 Temperature Transmitter is designed for industrial temperature monitoring in a wide range of process environments. Depending on the selected version, it can be installed in a transmitter housing near the sensor or used as a wireless solution for remote monitoring. It provides a practical option for applications requiring reliable temperature signals and straightforward integration into process control systems.
Key Features
- Reliable single-point measurement for common industrial temperature applications.
- HART® / 4–20 mA communication on the standard head-mount version.
- Open- and short-sensor diagnostics to help identify sensor-loop issues.
- One-year stability rating for the head-mount transmitter.
- Callendar–Van Dusen sensor matching to help reduce total measurement error when correctly configured.
- WirelessHART® communication on the wireless version, with reported data reliability above 99%.
- Optional local LCD and SmartPower™ module on the wireless version, depending on configuration.
Suitable Applications
- Industrial process temperature monitoring
- Chemical and petrochemical processing
- Oil and gas facilities
- Power generation
- Manufacturing and process automation
- Remote temperature monitoring points, with the wireless version
- Plant monitoring and control-system integration
Technical Highlights & Selection Considerations
- Transmitter type: Select the head-mount or wireless version according to installation and communication requirements.
- Input compatibility: Confirm the required sensor type and input configuration against the selected model and datasheet.
- Output and protocol: The standard head-mount version supports HART® / 4–20 mA; the wireless version uses WirelessHART®.
- Installation: Check housing, mounting, environmental protection and hazardous-area requirements for the intended location.
- Measurement performance: Consider sensor type, calibration requirements and whether transmitter-sensor matching is needed.
- Wireless power: The wireless version’s SmartPower™ module is rated for up to 10 years of operation under specified conditions; actual service life depends on application and configuration.
Frequently Asked Questions
1. What is the Rosemount 248 Temperature Transmitter used for?
It converts temperature-sensor signals into transmitter outputs for process monitoring and integration with industrial control systems.
2. What is the difference between the head-mount and wireless versions?
The head-mount version is designed for conventional wired measurement using HART® / 4–20 mA communication. The wireless version uses WirelessHART® to communicate measurements without requiring signal wiring to the control system.
3. Which sensor types can the Rosemount 248 support?
The head-mount transmitter supports common industrial sensor inputs, including RTDs and thermocouples, as well as specified resistance and millivolt inputs. Confirm compatibility with the exact model configuration.
4. Does the Rosemount 248 support sensor diagnostics?
Yes. The head-mount version includes open- and short-sensor diagnostics to help identify problems in the sensor loop.
5. How long does the wireless version’s battery last?
The SmartPower™ module is rated for up to 10 years of maintenance-free operation under specified conditions. Actual battery life varies with operating conditions and configuration.
6. What should be checked before ordering?
Confirm the transmitter version, sensor input, output protocol, mounting and housing requirements, display options, certifications and any required calibration or sensor-matching options.
