IMPAC Pyrometer
IS 8-GS pro

Portable digital pyrometers for non-contact temperature measurement in foundries between 1000 and 2000 °C

IMPAC Pyrometer IS 8-GS pro Front Back View
IMPAC Pyrometer IS 8-GS pro Front View
IMPAC Pyrometer IS 8-GS pro Side View
IMPAC Pyrometer IS 8-GS pro Display Side View
IMPAC Pyrometer IS 8-GS pro LED Display View
IMPAC Pyrometer IS 8-GS pro Heat Protection Bag View

Key Features

  • Very robust aluminum die-cast housing for use in rough environments
  • Focusable precision optics for adjusting smallest spot sizes
  • Temperature display on the housing, in the view finder and on the multi-functional display sideways
  • Large data storage for subsequent analysis of measuring data
  • Integrated maximum value storage to determine the peak value achieved during a measuring series
  • Extremely short response time for measurements on fast-moving objects
  • USB interface for using the optional analyzing software PortaWin
  • The series 8 pyrometers are high-quality, battery driven portables for non-contact temperature measurement.


The pro series is a revision of the 15 years proven plus series. The instruments feature fully digital signal processing, resulting in wider temperature ranges as well as higher accuracy. With the additional integrated graphic display the measuring results can be shown and analyzed directly on site.

The aluminum die-cast housing is specially designed for the daily use under rough industrial conditions. The easy focusable precision optics provides small spot sizes for measuring distances between 500 mm and ∞. The bright, optimized view finder with exact spot indication and built-in temperature display facilitates the accurate aiming on the object. Moreover, the large measurement data storage offers the best possibility for subsequent interpretation of the measured values.

The extremely short response time of 1 ms allows exact measurements of fast moving objects and a very quickly detection of temperature differences. The maximum temperature can be stored in the built-in peak picker (maximum value storage).

For high temperatures the IS 8 pro is available in two temperature ranges between 600 and 2500 °C, for the medium temperatures the IGA 8 pro with a range from 250 to 1600 °C. The IS 8-GS pro is a special version for use in foundries.

The instruments are mainly used in foundries.


Technical Specifications

Measurement Specifications
Temperature Ranges

(MB 20)    1000 to 2000 ºC     

Spectral Ranges:

0.55 μm

Measurement Accuracy: 0.4% of reading + 1ºC (at ε=1, Tamb=23 ºC)
Temperature Coefficient: 0.01%  / K (Tamb=23 ºC) of reading
Repeatability: 0.1% of reading or 0.8 ºC (the larger value is valid; at ε = 1, Tamb=23 ºC)
Resolution: LED inside: 1 °C/°F; LED outside: 0.1° up to 1000 °C/°F, after this: 1°; LCD: 0.1 °C/°F
Response Time t90: 1 ms (IS 8-GS pro: 0.5 s)
Emissivity ε: Adjustable from 10 to 100% in 0.1% steps
Measuring Functions:

 Normal (normal temp. measurement),    MAX (maximum value measurement),  AVG (average temperature)

Parameters:  Emissivity, direct emissivity setting; storage interval, temperature indication in ºC or ºF
Instrument Settings: Side keypad
Data Storage:  4000 values, storage of: measurement value, date, time, parameters, emissivity, temperature unit
Storage Interval: Off; 0.001 s; 0.02 s; 0.1 s; 1 s; 10 s; 100 s; 500 s
Objective: Achromatic, adjustable from a=500 mm to ∞ With close-up lens: a=250 mm to 500 mm Effective lens aperture diameter D: 20 mm (distance ∞) to 25 mm (distance 500 mm)
Sighting: Optimized thru-lens view finder with dioptry correction -2.5 dpt. to +3 dpt., View magnification: 3 x, angle of view: 10° Indication circle for measuring spot

Instrument’s back side: LED, 4 digit, 7 segment, 10 mm high.

Additional built-in LED display in the view finder.

Left side: LC display, 128 x 64 pixel, illuminated.

3 values / s; last value is displayed for another 10 s after finishing measurement (HOLD function).

Display when exceeding the max. temp range: 20 °C above end of temp. range. Display when falling below the min. temp. range: 5 °C below beginning of temp. range.

Serial Interface: USB 2.0 (supplies the instrument when connected, but without battery charging function)
Physical Characteristics
Dimensions: 210 x 75 x 175 mm (L x W x H)
Weight: 1.2 kg with batteries
Housing: Aluminum. Handle: polyamide
Thread for Tripod: 3/8”
Environmental Specifications
Ambient Temperature: 0 to 50 °C
Storage Temperature: -10 ... 65 °C
Relative Humidity: Non condensing conditions
Protection Class: IP52 (housing, exclude handle with battery case), IP40 (handle)
Power Supply:

6 x 1.5 V alkali-manganese IEC LR6 or

6 x 1.2 V rechargeable batteries

(uninterrupted operation time approx. 35 hours with alkali-manganese batteries)

CE label: According to EU directives about electromagnetic immunity
IMPAC Pyrometer IS 8-GS pro
Foc. Optics a=500...∞ mm
Cose-up lens a=250...500 mm

Display of optical path:

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