LumaSense Technologies, Inc., An Advanced Energy Company

- Model LUXTRON m924 - OEM Module Fiber Optic Temperature Sensor



Advanced Energy's Luxtron m924 OEM module is a four-channel fiber optic unit for medical magnetic resonance imaging (MRI) and radio frequency (RF), implantable medical device testing, and research and development labs. Flexible configuration for OEM and lab applications. Up to a 50 Hz sampling rate/channel. Temperature range: -100 to 330°C. Unique superior measurement accuracy of 0.5°C (with calibration).

Advanced Energy's Luxtron® m924 OEM module uses Fluoroptic® technology. It consists of the electronics module assembly plus Luxtron probes and accessories. The m924 provides precise and repeatable in-situ temperature measurements for control of processes involving RF, EMI, magnetic fields, and high voltages.

The m924 module replaces the Luxtron m600 OEM series module and FOT lab kit and provides better performance and modern architecture.

  • Easily integrate into OEM equipment
  • Utilize experienced application support and custom probes for medical and general purpose applications
  • Achieve better performance and a modern architecture
  • Measure temperature on minute samples without perturbing or heat sinking the sample
  • Receive support from experienced applications engineers to customize probes for medical and general purpose applications

  • Four channels, expandable up to 64 with RS485 Modbus
  • Single PCB design with options for analog output and metal enclosure
  • Proven Luxtron Fluoroptic STB and STF probes, immune to electromagnetic interference, such as high voltage, RF, plasma, and microwave
  • Backward compatibility with Luxtron m600 series OEM module, FOT Lab Kit, and Luxtron Fluoroptic Probes
  • Options for 0 to 10 V and 4 to 20 mA analog output and metal enclosure for lab and R&D applications


  • Channels: 4 or up to 64 with RS485 Modbus
  • Temperature Range: -100to330°C
  • Measurement Resolution: 0.01 °C (digital output)
  • Measurement Rate: Up to 50 Hz per channel
  • Accuracy after Calibration:
    • Single Point Calibration: ±0.5°C, ±50°C of calibration point
    • Three Point Calibration: ±0.1°C over a 100°C range (probe dependent)
    • Custom Calibration: ±0.05°C over complete calibration range
  • Noise: < O.rc (1-sigma STD at 1 Hz)

Environmental Specifications:

  • Operating Temperature Range: -40 to 85°C
  • Storage Temperature Range: -30 to 75°C
  • Relative Humidity: 80% RH (max) non-condensing
  • HxWxL:
    • Enclosure: 47 x 114 x 144 mm
    • Overall: 23.7 x 100.6 x 134.4 mm (main board and main board with analog outputs)


  • Analog Output: 0 to 10 V or 4 to 20 mA
  • Serial Output: RS232 and RS485
  • Protocol: ASCII (RS232) and Modbus (RS485)
  • Probes: STB and STF


  • Input Power: 5 to 24 VDC +5%

Typical Applications

  • MRI and RF medical treatment
  • Pacemakers and implantable device testing
  • Temperature monitoring of critical military equipment and facilities
  • Temperature control of microwave processes
  • Temperature measurement for electronic testing applications

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