Place of Origin:
Singapore
Certification:
IS9001
Model Number:
248
High Accuracy 248 Temperature Transmitter Stainless Steel
Product Description
The 248 High Accuracy Temperature Transmitter delivers reliable and precise temperature measurement for a wide range of industrial applications. Designed with advanced sensor technology and robust construction, it ensures stable performance even in demanding environments. With accuracy up to ±0.1%, global certifications, and easy integration into existing systems, the 248 transmitter provides engineers and operators with confidence in process safety, efficiency, and long-term reliability.
Specification
Feature / Model | Rosemount 248 | Rosemount 644 | Rosemount 3144P |
---|---|---|---|
Mounting Type | Head-mount / Rail-mount | Head-mount / Rail-mount | Field-mount |
Accuracy | ±0.1% of span | ±0.1% of span (with advanced diagnostics) | ±0.04% of span (high-performance) |
Input Types | RTD, Thermocouple, mV, Ω | RTD, Thermocouple, mV, Ω | RTD, Thermocouple, mV, Ω |
Output Signal | 4–20 mA with HART® | 4–20 mA with HART®, FOUNDATION Fieldbus | 4–20 mA with HART®, FOUNDATION Fieldbus, Profibus |
Diagnostics | Basic sensor failure detection | Advanced diagnostics (sensor drift, loop integrity) | Comprehensive diagnostics (dual sensor, drift alert, hot backup) |
Display Option | Optional LCD | Optional LCD | Integral LCD with advanced menus |
Power Supply | 12–42.4 V DC | 12–42.4 V DC | 10.5–42.4 V DC |
Operating Temp. | –40 to +85 °C | –40 to +85 °C | –50 to +85 °C |
Certifications | CE, ATEX, FM, CSA | CE, ATEX, FM, CSA, SIL | CE, ATEX, FM, CSA, SIL |
Best For | Cost-effective, compact installations | Mid-range applications needing diagnostics | Critical processes requiring the highest accuracy & reliability |
Operation and Maintenance
The 248 temperature transmitter requires minimal maintenance due to its solid-state design. Regular checks and diagnostics can be performed using the Field Communicator to ensure optimal performance. The device also offers features like sensor input trim, output trim, and intermittent sensor detection to fine-tune its performance and ensure accurate readings.
Product Description
Q1. What is the Rosemount 248 Temperature Transmitter used for?
The 248 transmitter converts low-level signals from RTDs or thermocouples into a stable 4–20 mA output with HART® communication, ensuring accurate and reliable temperature measurement in industrial processes.
Q2. What types of sensors can it accept?
It supports a wide range of RTDs, thermocouples, millivolt, and resistance (Ω) inputs.
Q3. What is the accuracy of the 248 transmitter?
It provides accuracy up to ±0.1% of span, making it suitable for most general-purpose industrial applications.
Q4. How is the 248 powered?
It operates on a 12–42.4 V DC power supply through the 2-wire loop.
Q5. What communication protocol does it use?
The transmitter communicates via HART® protocol (HART 5 or 7 selectable).
Q6. What mounting options are available?
It is available in head-mount and DIN rail-mount versions, offering flexibility for different installation needs.
Q7. Does it have diagnostics?
Yes, it includes basic sensor failure detection. For advanced diagnostics, higher-end models like the Rosemount 644 or 3144P are recommended.
Q8. What environments can it operate in?
The 248 is designed for –40 to +85 °C ambient conditions and is certified for use in hazardous areas (ATEX, FM, CSA).
Q9. Can it be configured before installation?
Yes, it can be bench-configured using a HART communicator or asset management software before being installed in the field.
Q10. What industries typically use the 248?
It is widely applied in chemical, oil & gas, power generation, water treatment, food & beverage, and general industrial automation.
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