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Rosemount 148 Temperature Transmitter

Rosemount 148 Temperature Transmitter is a compact, cost-effective device designed for single-point temperature measurement using RTDs, thermocouples, and other inputs. It delivers reliable 4–20 mA output, improved signal integrity, and up to ±0.15% accuracy, making it suitable for general industrial monitoring applications.

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Description

The Rosemount 148 Temperature Transmitter is engineered as a DIN B head-mounted unit that installs directly on the sensor, reducing wiring complexity and lowering installation costs compared to direct sensor wiring. It supports universal input types including 2-, 3-, and 4-wire RTDs, thermocouples, millivolt, and ohmic signals, providing flexibility across various process environments. With a reference accuracy of ±0.15% of span or ±0.3°C for Pt100 sensors, it ensures dependable and consistent temperature measurement. The transmitter outputs a standard 4–20 mA analog signal that is less susceptible to electrical noise, improving signal reliability in industrial settings.

In addition, the transmitter includes PC-based configuration capabilities using HART-compatible tools, allowing easy setup and calibration. Its ambient temperature compensation enhances measurement stability under changing environmental conditions, while its rugged design supports operation in humidity levels up to 95% (non-condensing). The device is also available with hazardous area certifications, making it suitable for use in oil & gas, chemical, and utility industries. With its simple design, low cost, and reliable performance, the 148 is widely used for basic temperature monitoring points where efficiency and affordability are key.

QTech Safety is a leading supplier of Rosemount 148 Temperature Transmitter in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Rosemount Temperature Transmitter from one of Ireland’s most trusted industrial safety equipment suppliers.

Features of Rosemount 148 Temperature Transmitter

  • Accuracy up to ±0.15% of span or ±0.3°C (Pt100)
  • 4–20 mA analog output (noise-resistant signal)
  • Supports RTD, thermocouple, mV, and ohm inputs
  • DIN B head-mounted design for direct sensor installation
  • PC/HART configurable for easy setup
  • Ambient temperature compensation for stable performance
  • Operates up to 95% humidity (non-condensing)
  • Cost-effective solution for single-point measurement

Technical Specifications of Rosemount 148

  • Type: Head mount temperature transmitter
  • Input: Single sensor – RTD (Pt100), Thermocouple (J, K), mV, ohm
  • Output: 4-20 mA with HART
  • Accuracy: ±0.30 °C (±0.54 °F) or 0.1% of span
  • Power supply: 12–42.4 V DC
  • Ambient temperature: -40 to +85 °C (-40 to +185 °F)
  • Mounting: DIN B sensor head or rail mount adapter
  • Design: Compact, low-cost, epoxy encapsulated
  • Certifications: Hazardous area approvals available

Temperature Transmitter Part Number & Configuration Guide

Standard (Example) Part Number

148HNNAN0

This is a reference configuration for the Rosemount Temperature Transmitters. It represents one commonly supplied setup and helps customers understand how the part number is structured.

Configurable Part Number Format

148HNXXXX

Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as Certifications, Software Configuration, NAMUR Alarm, Enclosure Material, Calibration, Line Voltage Filter, Assembly Option & Warranty.

Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.

Applications

The Rosemount 148 Temperature Transmitter is commonly used in industrial calibration and testing applications, including:

  • General industrial temperature monitoring
  • Oil & gas process temperature measurement
  • Chemical and petrochemical plants
  • Food & beverage processing systems
  • Utilities and HVAC temperature control

Why Choose QTech Safety?

At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:

  • Comprehensive Range of Safety Equipment:
    From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices.
  • Test & Measurement Instruments You Can Trust:
    We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications.
  • Expert Health & Safety Training:
    We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job.
  • Fast, Reliable Delivery Worldwide:
    Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently.
  • Trusted by European Businesses:
    We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.

We Ship Worldwide

At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.

🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)