Temperature Measurement Products

Impac High Speed 740 Series

Stationary Pyrometers for Non-Contact, Metallic Surface Temperature Measurement, 160 to 3500°C

Advanced Energy’s Impac High Speed 740 series features stationary pyrometers for non-contact temperature measurement of metallic surfaces, graphite, ceramics, etc.

  • Targeting light
  • Very small spot sizes
  • Variable or fixed optics
  • Viewfinder
  • Fast response times
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The Impac® High Speed 740 pyrometers offer the extremely fast 6 μs response time and are ideal for high-speed applications.

IGA 740: The compact IGA 740 is available with either focusable or macro optics. Use focusable optics featuring a measuring distance between 450 and 3000 mm to achieve small spot sizes. And, depending on the temperature range, macro optics provide a spot size of only 0.7 mm or 1 mm at fixed distance.

IGA 740-LO: The IGA 740-LO uses an optical fiber and optical head for transmitting radiation. The fiber and optical head are unaffected by electromagnetic interferences (e.g. induction). They can be used in very high ambient temperatures up to 260°C without cooling.

The IGA 740 and IGA 740-LO pyrometers are also available as temperature measuring stations. These include a bench unit, digital display, USB interface, power supply, connecting cable, software, and a 1.5 m optical fiber (-LO version).



  • Easily align with targeting light
  • Shield the laser wavelength
  • Measure fast-moving objects or rapid temperature changes
  • Detect small measuring objects via high-quality optics


  • Built-in LED-target light
  • Optional laser protection filter
  • Focusable optics
  • Extremely fast 6 μs response time
  • Viewfinder available (IGA 740)
  • Optical fiber and head (IGA 740-LO)

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

  • Temperature Ranges

    IGA 740 / IMGA 740

    160 to 1000°C (320 to 1832°F) (MB 10)
    300 to 1400°C (572 to 2552°F) (MB 14)
    300 to 2300°C (320 to 4172°F) (MB 23)
    500 to 2500°C (932 to 4532°F) (MB 25)
    350 to 3500°C (662 to 6332°F) (IMGA 740 only)

    IGA 740-LO / IMGA 740-LO

    200 to 1000°C (392 to 1832°F) (MB 10)
    300 to 1400°C (572 to 1832°F) (MB 14)
    300 to 2300°C (572 to 4172°F) (MB 23)
    500 to 2500°C (932 to 4532°F) (MB 25)
    400 to 3000°C (752 to 5432°F) (IMGA 740-LO only)
    350 to 3500°C (662 to 6332°F) (IMGA 740-LO only)

  • Measurement

    Spectral Ranges

    1.58 to 1.8 μm (MB 14 + 25)
    1.58 to 2.2 μm (MB 10)
    2.0 to 2.2 μm (MB 23)

    Measurement Uncertainty

    0.75% of reading
    ε = 1, t95 = 1 s, Tamb. = 25°C


    0.3% of reading
    ε = 1, t95 = 1 s, Tamb. = 25°C

    Exposure Time t95

    9 μs via current output, 6 μs via voltage output

    Emissivity ε

    0.1 to 1, continuously adjustable

  • Optical


    IGA 740: LED target light or viewfinder
    IGA 740-LO: LED target light 


    IGA 740: Focusable optics, a = 450 to 3000 mm or macro lens
    IGA 740-LO: Fiber optical heads, two standard, eight special dedicated distance to spot ratio

    Distance Ratio (FOV)

  • Interface and Communication


    0 or 4 to 20 mA (specify when ordering), temperature linear, max load 500 Ω
    0 to 10 V linear voltage output (via BNC connector)

  • Environmental

    Protection Class

    IP54 (according to DIN 40 050)

    Ambient Temperature

    IGA 740: 0 to 40°C (32 to 104°F)
    IGA 740-LO: 0 to 40°C (32 to 104°F) (instrument), maximum 260°C (500°F) (fiber/optical head)

    Storage Temperature

    -20 to 70°C (-4 to 158°F)

    Relative Humidity

    Non-condensing conditions


    IGA 740: ~1.2 kg
    IGA 740-LO: ~0.9 kg (instrument), ~0.250 kg (fiber), ~0.150 kg (optical head)

    L x W x H

    IGA 740: 235 x 70 x 70 mm (9.25 x 2.76 x 2.76 in)
    IGA 740-LO: 200 x 70 x 70 mm (7.88 x 2.76 x 2.76 in)

    CE Label

    According to EU directives about electromagnetical immunity

  • Electrical

    Power Supply

    24 VDC or AC, maximum current consumption 0.2 A

  • Typical Applications

    • Laser applications (laser cutting, laser welding, soldering, etc.)
    • Material development / material testing
    • Combustion engines
    • Airbag testing
    • Wafer control
    • Air purge assembly
    • Turbines
    • Plasma measurements
    • Explosion processes

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

Maximize fab productivity and capital equipment ROI with world-class support through each product lifecycle stage — from startup to long-term operation. Our service offerings are based on more than three decades of precision power and applications expertise.

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Accelerate tool installations and process development programs, or address specific applications concerns with Advanced Energy's dedicated applications consultants and engineering staff. Benefit from on-site reviews, analyses, and consultations.

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Decrease variability in maintenance costs and provide additional cost protection. Advanced Energy offers whole-box extended warranties.

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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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