Temperature Measurement Products

Impac IS 140 and IGA 140 Series

Digital, Highly Accurate Infrared Thermometers With Optional Interfaces, 220 to 3500°C

Advanced Energy's Impac IS 140 and IGA 140 series includes pyrometers with focusable optics for non-contact temperature measurement.

  • Temperature ranges between 220 and 3500°C
  • Available with three different focusable optics
  • Short response times <1 ms
  • Extremely small spot sizes min 0.35 mm
  • Available with Ethernet, Profinet, and Profibus interfaces


  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The Impac® IS 140 and IGA 140 series are digital, highly accurate pyrometers for non-contact temperature measurement on metals, ceramics, graphite, etc. in temperature ranges between 220 and 3500°C. Three different focusable optics with extremely small spot sizes are available and pyrometers are equipped with switchable RS232 and RS485 serial interfaces. The interfaces enable you to can read temperatures and adjust pyrometer parameters via the provided InfraWin software.

The -PB types are equipped with a Profibus-DP interface and -PN types are equipped with a Profinet interface for easy integration into existing systems. As part of standard delivery, the GSD file (Profibus) and GSDML (Profinet) offer a selection of five different module configurations for varying requirements. The -ET types are equipped with an Ethernet interface.


  • Achieve extremely high accurate and fast temperature measurement
  • Connect to existing Profibus and Profinet systems with optional interfaces
  • Set any temperature subrange within the full temperature range
  • Achieve exact alignment of the pyrometer with an optional color camera module
  • Color camera module available for optical alignment via video screen or monitor


  • Standard switchable digital RS232/RS485 interface with optional Profinet, Profibus, and Ethernet interfaces
  • Adjustable settings via the instrument, integrated key pad, or via the interface
  • Laser-targeting light or through lens viewfinder
  • Built-in digital display with temperature indication

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

  • Temperature Ranges

    IS 140

    550 to 1400°C (MB 14)
    600 to 1600°C (MB 16)
    650 to 1800°C (MB 18)
    550 to 1800°C (MB 18L)
    750 to 2500°C MB 25)
    900 to 3300°C (MB 33)
    650 to 1400°C (MB 14, forging version)
    750 to 3500°C (MB 35L)
    1100 to 3500°C (MB 35L, 0.676 µm version)
    1000 to 2000°C (MB 20, 0.55 µm version)

    IGA 140

    300 to 1300°C (MB 13)
    350 to 1800°C (MB 18)
    450 to 2500°C (MB 25)
    220 to 1150°C (MB 11.5L) 
    250 to 1350°C MB 13.5L)
    300 to 2000°C (MB 20L)
    350 to 2500 °C (MB 25L)
    300 to 3000 °C (MB 30L)

    Any range adjustable within the temperature range, minimum span 51°C

  • Measurement

    Spectral Ranges

    IS 140: 0.7 to 1.1 µm
    IGA 140: 1.45 to 1.8 µm

    Measurement Uncertainty

    Up to 1500°C: 0.3% of reading in °C + 1°C;
    Above 1500°C: 0.5% of reading in °C
    ε = 1, t90 = 1 s, Tamb. = 23°C


    0.1% of reading in °C + 1°C
    ε = 1, t90 = 1 s, Tamb. = 23°C

    Exposure Time t90

    < 1 ms, adjustable up to 10 s (“L” temperature ranges: with dynamical adaption at low signal levels)

    Emissivity ε

    10.0 to 100.0% adjustable via interface in steps of 0.1%

  • Optical


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


    Three focusable optics

    Distance Ratio (FOV)

    Minimum 380:1 (minimum 0.35 mm)

  • Interface and Communication


    Built-in digital display


    Adjustable at the instrument or via serial interface: emissivity, response time, analog output, address, baud rate, waiting period tW, temperature unit °C or °F, setting of the maximum value storage, temperature subrange

    Analog Output

    Adjustable 0 to 20 mA or 4 to 20 mA, linear (via digital interface)

    Digital Interface

    Switchable inside the pyrometer: RS232 or RS485 addressable, half duplex; baud rate up to 115 kBd
    Alternatively: Profibus, Profinet, or Ethernet

  • 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)


    Approximately 0.55 kg (1.21 lb)

    CE Label

    According to EU directives about electromagnetic immunity

  • Electrical

    Power Supply

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

    Power Consumption

    Maximum 2 VA


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

  • Typical Applications

    • Preheating
    • Annealing
    • Tempering
    • Welding
    • Forging
    • Hardening
    • Sintering
    • Melting
    • Soldering
    • Rolling
    • Brazing
    • Normalizing

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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Global Support & Services

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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

Thin Film Support
Thermal Product Support
Other Technical Support


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