IRF

IRF Series Fiber Optic Online Infrared Thermometer

IRF Series

The IRF Fiber Optic Infrared Thermometer is a high-performance non-contact temperature measurement system designed for applications where conventional infrared sensors cannot be installed due to extreme temperatures, limited space, or electromagnetic interference. With a fiber optic sensing head and remote electronics, the IRF series enables reliable temperature measurement in harsh industrial environments. It is available in single-color and dual-color ratio pyrometry versions for precise monitoring of high-temperature processes.

  • Reliable measurement in extremely hot environments with high-temperature resistant sensing head
  • Immune to electromagnetic interference due to fiber optic signal transmission
  • Flexible installation in confined spaces thanks to bendable fiber optic cable
  • Accurate temperature measurement even in dusty or smoky environments with dual-color option
  • Precise targeting with built-in center laser aiming
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Data Sheet
Application Note
Product Manual

https://tipl.com/wp-content/uploads/2026/03/IRF.pdf

  • Fiber optic sensing head for high ambient temperature applications
  • Immune to electromagnetic interference
  • Flexible fiber optic cable for difficult installation locations
  • Available in single-color and dual-color ratio pyrometry
  • Built-in center laser aiming for accurate target alignment
  • Dual-color models provide accurate readings despite smoke, vapor, or dust
  • Measurement independent of target emissivity variations in dual-color mode
  • 4–20 mA analog output and RS485 digital communication
  • Industrial design suitable for harsh environments
  • Sturdy sealed construction with environmental temperature compensation
  • Iron and steel metallurgy processes
  • Industrial furnace monitoring
  • Glass melting furnaces
  • Vacuum furnaces
  • Single crystal and polycrystalline furnace equipment
  • Aerospace and scientific research applications
  • High-temperature manufacturing processes
  • Liquid metal temperature measurement
  • Temperature Range: 150°C – 3000°C (depending on model)
  • Accuracy: ±0.75%
  • Repeatability: ±0.2%
  • Display Resolution: 1°C
  • Output Resolution: 0.1°C
  • Emissivity (1-color mode): 0.10 – 1.30 adjustable
  • Slope (2-color mode): 0.80 – 1.20 adjustable
  • Optical Resolution: 44:1 / 120:1 / 200:1
  • Minimum Target Size: Ø2.5 mm @300 mm (120:1)
  • Response Time: 50 ms (customizable to 10 ms)
  • Analog Output: 4–20 mA fully isolated
  • Digital Communication: RS485 Modbus RTU
  • Power Supply: 18–24 VDC
  • Probe Ambient Temperature: up to 200°C (optional 315°C)
  • Electronics Ambient Temperature: 0 – 70°C
  • Fiber Cable Length: 2.2 m standard (optional 6 m, 10 m, 22 m)
  • Optical Head Weight: ~150 g
  • Electronics Box Size: 175 × 80 × 58 mm

    Comprehensive Services Using This Product

    From installation to ongoing support, we’re with you every step of the way.

    Thermography

    Infrared imaging for proactive maintenance and safety.

    Thermography
    Calibration

    Precise calibration ensuring measurement accuracy and compliance.

    Calibration

    Industries Using This Product

    Our solutions are trusted by top industries to drive growth and improve operations.

    Steel
    Steel
    Steel

    Advanced monitoring systems for efficient steel production, ensuring product consistency and safety.

    Metals
    Metals
    Metals

    Advanced monitoring systems for efficient metal production, ensuring product consistency and safety.

    Glass
    Glass
    Glass

    Advanced instrumentation to ensure precise control and quality in glass manufacturing.

    Chemicals & Fertilisers
    Chemicals & Fertilisers
    Chemicals & Fertilisers

    Precision solutions for chemical processes, ensuring compliance and operational efficiency.

    Power
    Power
    Power

    Optimizing power plant operations with real-time monitoring and predictive maintenance solutions.

    What Customers Say About Us

    Trusted Engineering Support

    The team provided clear technical guidance and practical solutions. Execution was smooth and well coordinated throughout.

    Mr. Vivek NairGeneral Manager – Operations, Cement Industry
    Dependable Technical Partner

    Their approach was systematic and aligned with our plant needs. Overall experience with product and service has been positive.

    Ms. Kavita RaoSenior Manager – Maintenance, Steel Sector
    Application-Focused Solutions

    They understood our process conditions before recommending equipment. Support during installation was handled professionally.

    Mr. Rohan MehtaProject Lead – Power Plant
    Consistent Service Delivery

    Product performance has been stable in regular operations. The support team responds in a timely manner.

    Mr. Anil DeshmukhInstrumentation Head, Process Manufacturing

    Insights & News

    Ensuring Environmental Compliance with CEMS: A Step Ahead
    Learn how Continuous Emission Monitoring Systems (CEMS) help industries stay compliant with environmental norms, providing real-time emission data, remote monitoring, and actionable insights for sustainable and responsible manufacturing.
    How Predictive Maintenance is Transforming Industrial Efficiency
    Discover how advanced monitoring tools like vibration and ultrasound solutions are helping industries move from reactive to predictive maintenance—reducing downtime, extending equipment life, and optimizing productivity across critical operations.
    View More

    Clients Who Have Transformed Their Operations with This Product

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    Frequently Asked Questions About This Product

    Fiber optic infrared thermometers allow the sensing probe to be installed in extremely hot or restricted areas, while the electronics remain in a safer location.
    Depending on the model, the IRF series supports measurement from 150°C up to 3000°C.
    Dual-color pyrometers are ideal when emissivity varies, smoke or dust is present, or the target does not fully fill the measurement spot.
    Yes. The IRF provides 4–20 mA analog output and RS485 Modbus communication, making it compatible with PLC and SCADA systems.
    Yes. The sealed industrial construction and fiber optic sensing head make the IRF series suitable for demanding environments such as furnaces, metallurgy, and glass production.

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    Download Resources

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