Temperature Measurement Products

Impac IS 12 and IGA 12 Series

Digital, Infrared Thermometers for Non-Contact Temperature Measurement, 250 to 3500°C

Advanced Energy's Impac IS 12 and IGA 12 series pyrometers are robust, digital, and highly accurate for non-contact temperature measurement. 

  • Available with six fixed and three focusable optics that feature extremely small spot sizes
  • Short Response Times:
    • < 1 ms (IS 12, IS 12-S, IGA 12, IGA 12-S)
    • < 1.5 ms, adjustable up to 10 s (IS 12-AI)
    • 10 ms, adjustable up to 10s
  • Distance ratio up to 900:1 (IS 12, IS 12-S, IGA 12, IGA 12-S)
  • Overview
  • Technical Specs
  • Documents
  • Service & Support
  • Distributors


The Impac® IS 12 and IGA 12 series are highly accurate, fast, and fully digital pyrometers for non-contact temperature measurements on metals, ceramics, graphite, etc. between 250 and 3500°C.

The IS 12 and the IGA 12 are both also available as a special version with integrated scanner (IS 12-S and IGA 12-S) which moves the measuring beam adjustable up and down up to 4°. The IS 12-Al and IS 12-Al/S are specially designed versions for measuring aluminum.


  • Achieve extremely high accuracy and repeatability
  • Optimally match instruments to the right applications
  • Select parameters via keys or directly via push buttons
  • Achieve exactly alignment of the pyrometers with a thru-lens view finder or laser targeting light
  • Digitally and quickly process signals


  • Fixed and focusable optics
  • Switchable interfaces RS232 or RS485 (IS 12, IS 12-S, IGA 12, IGA 12-S, IS 12-Al)
  • Built-in digital display (IS 12, IS 12-S, IGA 12, IGA 12-S, IS 12-Al)
  • Short response times:
    • < 1 ms (IS 12, IS 12-S, IGA 12, IGA 12-S)
    • < 1.5 ms, adjustable up to 10s (IS 12-AI)
    • 10 ms, adjustable up to 10s
  • Small spot sizes


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

  • Temperature Ranges

    IS 12 and IS 12-S

    550 to 1400°C (1022 to 2552°F) (MB 14)
    600 to 1600°C (1112 to 2912°F) (MB 16)
    650 to 1800°C (1202 to 3272°F) (MB 18)
    750 to 2500°C (1382 to 4532°F) (MB 25)
    550 to 2000°C (1022 to 3632°F) (MB 20L)
    700 to 3500°C (1292 to 6332°F) (MB 35L)

    IGA 12 and IGA 12-S

    250 to 1000°C (482 to 1832°F) (MB 10)
    300 to 1300°C (572 to 2372°F) (MB 13)
    350 to 1800°C (662 to 3272°F) (MB 18)
    400 to 2300°C (752 to 4172°F) (MB 23)
    250 to 1400°C (482 to 2552°F) (MB 14L)

    IS 12-Al

    350 to 900°C (662 to 1652°F) (MB 9)
    400 to 1050°C (752 to 1922°F) (MB 10.5)

    IS 12-Si

    400 to 1300°C (752 to 3272°F) (MB 13)
    400 to 900°C (752 to 1652°F) (MB 9)
    350 to 1000°C (662 to 1832°F) (MB 10)
    500 to 1800°C (932 to 3272°F) (MB 18)

  • Measurement

    Spectral Ranges

    IS 12 and IS 12-S: 0.7 to 1.1 μm
    IGA 12 and IGA 12-S: 1.45 to 1.8 μm
    IS 12-Al / IS 12-Si: Narrowband in the near infrared

    Measurement Uncertainty

    All Versions
    Below 1500°C: 0.3% of measured value in °C + 1°C
    Above 1500°C: 0.5% of measured value in °C
    ε = 1, t90 = 1 s, Tamb. = 23°C

    IS 12-Al
    0.3% of measured value in °C + 1°C
    ε=1, t90=1 s, Tamb.=15 to 40°C, TM ≥ 400°C (MB 9), TM ≥ 450°C (MB 10.5)


    0.1% of measured value in °C + 1°C

    Exposure Time t90

    IS 12 and IGA 12: < 1 ms ("L" temperature ranges with dynamic adaptation at low signal levels), adjustable up to 10 s
    IS 12-Al: < 1.5 ms (with dynamical adaption at low signal levels) adjustable up to 10 s
    IS 12-Si: 10 ms, adjustable up to 10 s

  • Optical


    Built-in parallax free through lens view finder or laser targeting light (maximum power level < 1 mW, λ = 630 to 680 nm, CDRH class II)


    IS 12, IGA 12, IS 12-S: Three focusable optics and six fixed optics
    IS 12-Si: Three focusable optics
    IS 12-Al: Five fixed optics (MB 9) and six fixed optics (MB 10.5)

    Distance Ratio (FOV)

    IS 12 / IS 12-S / IGA 12 / IGA 12-S
    Fixed Optics: Minimum 900:1 (0.1 mm) | Focusable Optics: Minimum 900:1 (0.4 mm)

    IS 12-Al
    Minimum 120:1 (1.1 mm)

    IS 12-Si
    Fixed Optics: Minimum 370:1 (0.6 mm) | Focusable Optics: Minimum 130:1 (2.3 mm)

  • Interface and Communication


    Built-in five-digit LED display, additional function LEDs


    Adjustable at the instrument or via serial interface: emissivity ε, response time t90, clear time for maximum value storage tclear, subrange, 0 to 20 or 4 to 20 mA, switch points for limit switches, °C or °F, interface RS232 or RS485, address, baud rate, test current output

    Analog Output

    Linear 0 to 20 mA or 4 to 20 mA, DC, switchable; load max 500 Ohm

    Digital Interface

    Switchable at the pyrometer: RS232 or RS485 addressable, half duplex; baud rate 2.4 up to 115 kBd

  • Environmental

    Protection Class

    IP65 (according to DIN 40 050)

    Ambient Temperature

    0 to 70°C (70 to 158°F)

    Storage Temperature

    -20 to 70°C (-4 to 158°F)

    Relative Humidity

    Non-condensing conditions


    2.2 kg (~2.20 lbs)

    CE Label

    According to EU directives about electromagnetic immunity

  • Electrical

    Power Supply

    24 VDC (15 to 40 VDC) or 24 VAC (12 to 30 VAC), 48 to 62 Hz

    Power Consumption

    Maximum 7 W


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

  • Typical Applications

    IS 12 / IS 12-S / IGA 12 / IGA 12-S

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

    IS 12-Al

    Non-contact temperature measurement of aluminum

    Is 12-Si

    Non-contact temperature measurement of thin silicon

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

Thin Film Support
Thermal Product Support
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