Temperature Measurement Products

Impac IN 6/78

Accurate, Rugged, and Reliable Pyrometers for Non-Contact Temperature Measurement, 150 to 1100°C

Advanced Energy's Impac IN 6/78-L and IN 6/78-H are specially designed pyrometers for non-contact temperature measurement of thin glass sheets.

  • Temperature Ranges:
    • IN 6/78-L: 400 to 1100°C
    • IN 6/78-H: 150 to 800°C
  • Measurement of ultra-thin glass sheets with less than 1 mm thickness
  • Easy installation and maintenance due to compact, rugged IP65 stainless steel housing designed for harsh environments
  • Specially designed and coated high-end optics for high accuracy and excellent size of source effects
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The Impac® IN 6/78 pyrometer is designed specifically for non-contact temperature measurements on thin glass surfaces in ranges between 150 and 1100°C. The special 7.8 μm wavelength makes it possible to accurately and reliably measure glass sheets below 1 mm thickness (ultra-thin glass).

The version IN 6/78-L is equipped with optics with a better field of view for the measurement of small objects. The high-speed version IN 6/78-H has a shorter exposure time of only 30 ms and is suited for fast-measuring tasks.


  • Achieve high accuracy with the fully digital core sensor design
  • Easily integrate with a small, stainless steel housing
  • Connect to a PC via RS485 to USB connection for further analysis
  • Use in ambient temperature up to 70°C without cooling


  • Anti-reflective lens created with semiconductor material to reduce environmental sensitivity
  • Multiple onboard digital and analog interfaces for direct and fast PLC communication
  • Adjustable emissivity (10 to 125%) and transmittance (10 to 100%) in steps of 0.1%
  • Adjustable subrange

Select specifications are shown below. Please see product data sheet for additional specifications.

  • Temperature Ranges

    IN 6/78-L

    400 to 1100°C

    IN 6/78-H

    150 to 800°C

    Adjustable to any range within the temperature range, minimum span is 51°C

  • Measurement

    Spectral Range

    7.8 μm, FWHM 0.6 μm

    Measurement Uncertainty

    0.7% of reading or 3.5°C, whatever is greater, in °C
    ε = 1, t90 = 1 s, Tamb. = 44°C


    At ε = 1, t90 = 1 s

    Exposure Time t90

    IN 6/78-L: 80 ms
    IN 6/78-H: 30 ms
    Adjustable to 0.5 s, 1 s, 2 s, 5 s, 10 s, 30 s

    Emissivity ε

    10 to 125%, adjustable in steps of 0.1%

    Transmittance τ

    10 to 100%, adjustable in steps of 0.1%

  • Optical




    IN 6/78-L: Fixed optics (a = 370 mm)
    IN 6/78-H: Fixed optics (a = 350 mm)

    Distance Ratio (FOV)

    IN 6/78-L: 75:1 (minimum 5 mm) 
    IN 6/78-H: 50:1 (minimum 7 mm)

  • Interface and Communication


    12-pin connector


    Analog Output

    0 to 20 mA or 4 to 20 mA (linear)

    Digital Interface

    RS485 (half-duplex)

  • Environmental

    Protection Class

    IP 65 IEC 60529 (value in mated condition)

    Operating Position


    Ambient Temperature

    0 to 70°C (32 to 158°F)

    Storage Temperature

    -20 to 80°C (-4 to 176°F)

    Relative Humidity

    Non-condensing conditions


    0.410 kg (0.91 lb)


    Stainless steel

    CE Label

    According to EU directives about electromagnetical immunity

  • Electrical

    Power Supply

    24 VDC (18 to 30 VDC) nominal, ripple must be less than 0.5 V

    Power Consumption

    Maximum 50 mA


    Maximum 500 Ω


    Power supply, analog outputs, and digital interfaces are electrically isolated from each other

  • Typical Applications

    • Measurement of ultra-thin glass sheets

Specifications are subject to change without notice. Not all options and accessories are available for all models and configurations. Dimensions listed generally refer to standard configurations and module bodies only. Please confirm technical specifications and customizations with a sales representative. Advanced Energy is not responsible for errors or omissions.


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Product Support

U.S.: +1 800 446 9167
Asia: +86 29 8874 1895
China: 400 8899 130
EMEA: +44 800 032 1546
U.K.: 08000 321 546

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