Temperature Measurement Products

Impac ISR 6 Advanced

Digital Ratio Pyrometer with One-Color and Two-Color Modes for Non-Contact Temperature Measurement, 600 to 3000°C

Advanced Energy’s Impac ISR 6 Advanced is a digital, compact and fast two-color pyrometer for non-contact temperature measurement.

  • Wide temperature ranges for flexible process adaptation
  • High accuracy and repeatability
  • Dirty-window warning
  • Four-digit LED supply
  • Fast response times
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The Impac® ISR 6 Advanced pyrometer measures in the two-color method (ratio method). Two adjacent wavelengths are used for temperature determination. Temperature measurement is largely independent of the object’s emissivity and, in wide ranges, unaffected by dust and other contaminants in the field of view.

The ISR 6 can be connected to a PC through an RS485 to USB connection. This enables you to adjust parameters using InfraWin software. This can be used for temperature indication, data logging, and complete temperature processes analysis.


  • Switch to one-color mode and use as a conventional pyrometer in a spectral range near 0.9 μm
  • Measure fast processes and objects smaller than the spot size
  • Connect to a PC through an RS485 to USB connection
  • Make parameter adjustments via the InfraWin software


  • Complete digital core for subrange and adopted analog output
  • Very fast 2 ms response time for highly dynamic processes
  • High-quality optics with manual focus capability
  • Robust, stainless steel sensor for harsh environments (IP65/NEMA4)
  • Available with integrated line optics (line-spot shape)

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

  • Temperature Ranges

    ISR 6 Advanced

    600 to 1400°C (1112 to 2552°F) (MB 14)
    700 to 1800°C (1292 to 3272°F) (MB 18)
    800 to 2500°C (1472 to 4532°F) (MB 25)
    1000 to 3000°C (1832 to 5432°F) (MB 30)
    Any range adjustable within the temperature range, minimum span: 50°C

  • Measurement

    Spectral Ranges

    Channel 1: 0.9 μm
    Channel 2: 1.05 μm

    Measurement Uncertainty

    < 1500°C: 0.3% of reading in °C + 2°C
    > 1500°C: 0.6% of reading in °C
    κ = 1 or ε = 1, t90 = 1 s, Tamb. = 25°C


    0.15% of reading in °C + 1°C
    κ = 1 or ε = 1, t90 = 1 s, Tamb. = 25°C

    Exposure Time t90

    2 ms (with dynamic adaption at low signal levels); adjustable to 0.01 s, 0.05 s, 0.25 s, 1 s, 3 s, 10 s

    Emissivity ε

    0.050 to 1.000 in steps of 1/1000 (one-color mode)

    Emissivity Slope K: 0.800 to 1.200 in steps of 1/1000 (two-color mode)

    Transmittance τ

    0.050 to 1.000 in steps of 1/1000 (one-color mode)

  • Optical


    Built-in laser aiming light (maximum power level < 1 mW, λ = 630 to 680 nm, CDRH class II) or through lens sighting


    Manually focusable from rear cover measuring distance a = 210 to 5000 mm

    Distance Ratio

    Approximately 100:1 (MB 14), 190:1 (MB 18), 350:1 (MB 25 and MB 30)

  • Interface and Communication


    12-pin connector


    In Rear Cover: LED, four-digit matrix, 5 mm high for two-color or one-color temperature signal or measuring distance


    Adjustable via Interface: two-color / one-color temperature signal, accordingly emissivity slope or emissivity, metal mode, temperature subrange, settings for maximum value storage, address, baud rate, switch off limit, dirty-window warning, transmittance, response time t90, 0 to 20 mA or 4 to 20 mA analog output range, °C / °F

    Readable via Interface: Measured value, internal temperature of the unit, measuring distance

    Analog Output

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

    Digital Interface

    RS485 addressable (half-duplex)
    Baud rate: 1200 Bd to 115.2 kBd
    Or RS232, not addressable

    Switch Off Limit

    2% to 50% (adjustable via interface)

    Dirty-Window Warning

    Relay contact, maximum continuous current 0.4 A, setting of the warning level: 0 (off) to 99%

  • Environmental

    Protection Class

    IP 65 IEC 60529 (value in mated condition)

    Operating Position


    Ambient Temperature

    0 to 65°C (32 to 149°F) at housing

    Storage Temperature

    -20 to 80°C (-4 to 176°F)

    Relative Humidity

    Non-condensing conditions


    0.6 kg (1.32 lb)


    Stainless steel

    CE Label

    According to EU directives about electromagnetical immunity

  • Electrical

    Power Supply

    24 VDC ±25%, ripple must be less than 50 mV

    Power Consumption

    Maximum 3 W (including laser)


    0 to 500 Ω


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

  • Typical Applications

    • Metal and Steel Making
    • Metal and Steel Finishing: induction hardening, tempering annealing, induction soldering, brazing, welding, wire/rod mill, induction heating and cooling processes, sintering, noble metals melting and purifying
    • Solar Industry: silicon processing, polycrystalline casting in vacuum melting furnace, silicon ingot growth in CVD reactors (Siemens process), crystal pulling of monocrystalline silicon (Czochralski process)
    • Glass Industry: gob temperature measurement
    • Cement Industry: clinker temperature in rotary kilns

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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