Rosemount 248 Temperature Transmitter
The Rosemount 248 temperature transmitter, as an industry standard solution, provides consistent and reliable performance in process environments. It features a rugged design that can withstand various process conditions, meeting the requirements for conventional single-point temperature measurement applications. For application flexibility, this temperature transmitter can be configured for rail or top mounting, as well as various enclosure options.
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Rosemount temperature transmitter
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Detailed introduction
As an industry standard solution, the Rosemount 248 temperature transmitter provides consistent and reliable performance in process environments. It features a rugged design that can withstand various process environments, meeting the requirements for conventional single-point temperature measurement applications. For application flexibility, this temperature transmitter can be configured for rail or top mounting with various housing options.
Here are the key features of the Rosemount 248 Temperature Transmitter, distilled into a clear and practical list:
Single Input Capability: Accepts RTDs, thermocouples, ohm, and mV sensors—ideal for basic temperature monitoring.
4–20 mA Output with HART® Protocol: Ensures seamless communication with control systems while providing diagnostic support.
Galvanic Isolation: 2.5 kVAC between input and output for enhanced signal integrity and safety.
DIN B Head Mounting: Compact design fits neatly into connection heads for efficient installations.
Ambient Operating Range: -50 to +85 °C, making it robust in varying industrial environments.
Sensor Diagnostics: Built-in detection for open or shorted sensors and automatic ambient temperature compensation.
SIL 2 Capable: Complies with IEC 61508 standards, suitable for safety-instrumented systems.
Custom Configuration Options: Can be pre-configured and labeled at the factory to reduce installation time on site.
| Parameter | Specification |
|---|---|
| Input Types | RTD, Thermocouple, mV, Ohm |
| Output Signal | 4–20 mA with HART® Protocol |
| Mounting Style | DIN Form B Head-Mount |
| Power Supply | 11–35 VDC |
| Operating Temperature | -50 to +85 °C (Ambient) |
| Galvanic Isolation | 2.5 kVAC (Input to Output) |
| Sensor Diagnostics | Open/short sensor detection, ambient compensation |
| Configuration | Local via handheld communicator or factory pre-set |
| Approvals / Certifications | SIL 2 capable (IEC 61508), CE, CSA, FM, ATEX, IECEx |
Rosemount 248 Temperature Transmitter – FAQ
Q1: What types of sensors can the Rosemount 248 accept?
A: It supports RTDs (e.g., Pt100), thermocouples (e.g., Type J, K, T), millivolt, and resistance inputs.
Q2: Can I configure the transmitter in the field?
A: Yes, using a HART® communicator or AMS Device Manager. It can also be factory-configured before shipment.
Q3: Is it loop-powered?
A: Yes, it operates on an 11–35 VDC loop power supply and outputs a 4–20 mA signal.
Q4: What is the ambient temperature range?
A: The transmitter operates reliably from -50 to +85 °C.
Q5: Does it support sensor diagnostics?
A: Absolutely. It includes open/short sensor detection and ambient temperature compensation.
Q6: Is it suitable for safety applications?
A: Yes, it’s SIL 2 capable per IEC 61508, making it suitable for safety-instrumented systems.
Q7: Can I order it without a sensor?
A: Yes, it can be ordered as a standalone unit or as part of an assembly with sensor and thermowell.
Q8: What does “S/N” refer to in the configuration?
A: “S/N” stands for Sensor Serial Number, useful for tracking calibration and maintenance.
Q9: Does it have an Active Calibrator Mode?
A: Yes, but it must be disabled before returning the transmitter to service to ensure full diagnostics.
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