os4500 Multipoint High Temperature Probe

Multipoint, High Temperature Probes

Luna’s os4500 Series Multipoint, High Temperature Probes are sealed, stainless steel tubes that are designed to make handling easy and sensor installation fast and repeatable in the most challenging environments. It is based on femtosecond grating technology. and since there are no epoxies holding the fiber to the tube, long term stability is ensured by design. 

Product Description

In side by side comparisons with conventional thermocouples, the os4500 is equally sensitive and accurate, while providing sub-second response time, wider operating range, no calibration, and no EMI noise.  The os4500 temperature probe is qualified for use in harsh environments and delivers the many advantages inherent to all FBG based sensors. 

This sensor can be used alone or in series at the end of an FBG sensor array. Installation and cabling for such arrays is much less expensive and cumbersome than comparable electronic gage networks. Options  include packages that operate like conventional thermocouples with armored cables and protected connectors, and small probes that provide the user with both installation flexibility and sub-second response time. 

The os4500 series of sensors are compatible with ENLIGHT Sensing Analysis Software, which provides an integrated suite of tools for data acquisition, computation and analysis of optical sensor networks as well as the HYPERION platform's comprehensive Application Programming Interface (API) and examples written in LabVIEW, Python, Matlab, C++ and C#.

  • Key Features
    • Multipoint temperature measurements on the same probe
    • Ease of  installation simple and repeatable installation 
    • 500 and 700 °C capable  
    • Up to 304 sensors on a single HYPERION instrument
    • Multiparameter various physical parameters measurements coupled onto the same instrumentation platform 
    • Included in ENLIGHT’s sensor templates - allows for quick and easy optical to temperature conversions. 
  • Specifications
    Sensor Type os4510 os4520
    Operating temperature range

    up to 500 °C

    up to 700 °C
    Probe Length

    Available in both 1 and 2 meter configurations 

    Number of Sensing Points

    Available in both 10 and 20 point configurations 

    +/- 3 °C

    +/- 4 °C
    Housing Material

    SS304 Probe


    High Temperature FC/APC (150 °C capable)

    Measurement Points

    Up to 304 with 16 channel si255, 19 sensors per channel

    Scan Frequency

    1kHz and 5kHz instrument options available

    Wavelength Options

    1512 to 1548nm for 10 sensing point probes and 1512 to 1588nm for 20 sensing point probes


    For full specifications, please download the data sheet.

  • Documentation

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