Temperature Measurement Products

Impac IGAR 6 Smart

Stationary, Digital Ratio Pyrometer with Various Operating Modes, 100 to 2550°C

Advanced Energy’s Impac IGAR 6 Smart pyrometer is a digital, compact and fast pyrometer that can be operated in different modes.

  • One-Color Mode: 100 to 2550°C
  • Two-Color Mode: 250 to 2550°C
  • Smart Mode: 100 to 2550°C (temperature-dependent, automatic transition from one-color to two-color mode)
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The Impac® IGAR 6 Smart pyrometer can operate in one-color mode (100 to 2550°C), two-color mode (250 to 2550°C), or special smart mode.

In two-color mode (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. The measuring object can be smaller than the spot size. You also can measure through dirty-viewing windows up to a certain contamination point.

In Smart mode, the measurements at lower temperatures will be taken in 1-color mode and the measurements at higher temperatures will be taken in 2-color mode (ratio method).

Via InfraWin, the user can set the temperature at which the instrument automatically transitions from 1-color mode to 2-color mode. The minimum transition temperature is 250°C and the minimum transition temperature range is 30°C.


  • Measure fast processes thanks to a two milisecond response time
  • Connect to a PC via an RS485 to USB connection
  • Adjust parameters and analyze data using InfraWin software
  • Automatically determine emissivity when using the two-color or smart mode


  • Complete digital core for sub-ranging and adopted analog output
  • High quality optics with manual focus capability
  • Robust, stainless steel sensor for harsh environments (IP65/NEMA4)
  • Four-digit LED display
  • Dirty-window warning

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

  • Temperature Ranges

    One-Color and Smart Mode

    100 to 2550°C

    Two-Color (ratio) Mode

    250 to 2550°C

    Any range adjustable within the temperature range, minimum span 50°C

  • Measurement

    Spectral Ranges

    Channel One: 1.5 to 1.6 µm
    Channel Two: 2.0 to 2.5 µm

    Measurement Uncertainty

    <1500°C: 0.4% of reading in °C +2°C
    >1500°C: 0.8% of reading in °C
    At κ = 1 or ε = 1, t90 = 1 s, Tamb. = 25°C


    0.2% of reading in °C + 1°C
    At 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 (1-color mode)
    Emissivity Slope K: 0.600 to 2.000 in steps of 1/1000 (2-color mode)

    Transmittance τ

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

  • Optical Specifications


    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

  • 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


    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 to 115.2 kBd

    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


    Stainless steel

    CE Label

    According to EU directives about electromagnetical immunity

  • Electrical

    Power Supply

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

    Power Consumption

    Maximum 3 W (incl. 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 Forming: pouring stream, casting, and forging
    • Metal and Steel Finishing: induction hardening, tempering, annealing, induction soldering, brazing, welding, wire/rod mill, induction heating and cooling processes, sintering
    • Vacuum Processes: coating and brazing
    • Laser Applications

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.


Electrical Accessory

Impac Other Electrical

Other Electrical Accessories Compatible With Impac Pyrometers

Product Display Option Accessory

Impac DA 4000

Digital LED Display With 2-Wire Supply Voltage

Product Accessory

Impac Mechanical Accessories

Other Mechanical Accessories Compatible With Impac Pyrometers

Product Accessory

Impac MultiTempLogger

Multi-Channel Measuring Data Logging Software Supplementary downloads only; contact sales for software

Product Accessory

Impac Power Supplies

Impac Pyrometer DC and AC Power Supply Units

Product Display Option Accessory

Impac PI 6000 Controller

Extremely Fast, Digital, and Programmable PID Controller

Product Display Option Accessory

Impac DA 6000-N

LED digital display with RS232 or RS485 interface for digital pyrometers

Product Display Option Accessory

Impac DA 6000

Digital LED Display With 2-Wire Supply Voltage

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.

Learn More

Applications Support & Consulting

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.

Learn More


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

Learn More

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


Find an AE Representative or Distributor

To find distributors and representatives who sell AE products in your area, select your location and vendor type (optional).

Contact Us

Thank You

You may now view any resource on the Advanced Energy site. Click the button below to view your requested resource.

Thank You

You may now view any resource on the Advanced Energy site. Click the button below to view your requested resource.