Temperature Measurement Products

Impac IN 140/5 Series

Fast, Digital Pyrometer for Measurement of Glass Surfaces, 250 and 2500°C

Advanced Energy’s digital Impac IN 140/5 series pyrometers are ideal for non-contact measurement of glass and quartz-glass surfaces.

  • Short response times
  • Small spot sizes
  • Focusable optics
  • Digital display
  • Test current output
  • Overview
  • Technical Specs
  • Documents
  • Service & Support
  • Distributors


The Impac® IN 140/5 digital pyrometers are ideal for non-contact temperature measurement of glass and quartz-glass surfaces between 250 and 2500°C.

The IN 140/5 series showcases very short response time and extremely small spot sizes. It has two model variations. The IN 140/5-L is equipped with a better field-of-view (optics 2-NL) and the high-speed IN 140/5-H has a short response time of only 10 ms.


  • Accurately measure fast-moving, small objects
  • Exactly align with laser targeting light or thru-lens finder
  • Use focusable optics to match application requirements
  • View temperature measurements via the built-in display or PC
  • Adjust pyrometer parameters on the instrument or PC using InfraWin Software


  • Thru-lens view finder or laser targeting light
  • Built-in digital display
  • Interface RS232 / RS485 switchable
  • Very short response time, minimum 10 ms
  • Extremely small spot sizes, minimum 0.9 mm

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

  • Temperature Ranges

    IN 140/5

    250 to 1400°C (482 to 2552°F) (MB 14)
    300 to 1600°C (572 to 2912°F) (MB 16)
    450 to 1500°C (842 to 2732°F) (MB 15)
    500 to 2500°C (932 to 4532°F) (MB 25)
    Any range adjustable within the temperature range, minimum span 51°C

  • Measurement

    Spectral Range

    5.14 μm (narrow band, for glass surfaces)

    Measurement Uncertainty


    0.3% of measured value in °C
    ε = 1, t90 = 1 s, Tamb. = 23°C

    Exposure Time t90

    IN 140/5 and IN 140/5-L: 40 ms, adjustable up to 0.05 s, 0.25 s, 1 s, 3 s, 10 s
    IN 140/5-H: 10 ms, adjustable up to 0.05 s, 0.25 s, 1 s, 3 s, 10 s

    Emissivity ε

    10 to 120% adjustable in the instrument or via interface in steps of 0.1%

  • Optical


    Through lens view finder or laser target light (maximum power level < 1 mW, l = 630 to 680 nm, CDRH class II)


    IN 140/5 and IN 140/5-H: Three focusable optics
    IN 140/5-L: One focusable and One fixed optics

    Distance Ratio (FOV)

    IN 140/5 and IN 140/5-H: minimum 150:1 (1 mm)
    IN 140/5-L: 180:1 (0.9 mm)

  • Interface and Communication


    Illuminated LC display for temperature indication or parameter settings


    Emissivity, exposure time, analog output, temperature subrange, settings of the maximum value storage, address, baud rate, internal temperature of the pyrometer

    Analog Output

    0 to 20 mA or 4 to 20 mA (linear), switchable
    Test current 10 mA or 12 mA by pressing test key

    Digital Interface

    RS232 or RS485 addressable (half duplex), switchable
    Baud Rate: 1200 up to 115200 Bd

  • Environmental

    Protection Class

    IP65 (DIN 40 050)

    Ambient Temperature

    0 to 70°C (32 to 158°F) at housing

    Storage Temperature

    -20 to 80°C (-4 to 176°F)


    ~0.550 kg (~1.21 lb)

    CE Label

    According to EU directives about electromagnetical immunity

  • Electrical

    Power Supply

    24 VAC/DC (14 to 30 VAC/DC) (AC: 48 to 62 Hz)

    Power Consumption

    Maximum 1.2 W


    0 to 500 Ω


    Power supply, analog output, and digital interface are galvanically isolated from each other

  • Typical Applications

    • Flat Glass Fabrication
    • Bulb Production
    • Car Glass Assembly
    • Glass Bending

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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