Kowolux X3/X3eco

The Kowolux X3 and X3eco High Intensity X-Ray Film Viewers are designed for high end NDT x-ray film evaluation. These viewers feature the latest POWER-LED Technology, providing magnificent white light over the whole control range. The higher contrast helps inspection operators to find defects and discontinuities easily. Even with very dark films, the High luminance makes it possible to view without destroying them.

Due to the higher efficiency of LED’s, heat generation and power consumption is reduced by 80% when compared to conventional viewers with halogen lamps. With a life span of up to 40,000 hours, frequent bulb replacement is a thing of the past, making it a cost effective choice.

Constructed with an economically designed housing made of durable stainless steel, and a cooling fan that reduces irritating noise. A large variety of accessories make handling films very easy.


  • Thermally cured crystal glass viewing screen with 95% translucency and an anti-reflective coating
  • Interchangeable masks for different film sizes
  • Plug-in foot switch operable without foot switch (with optional operation plug)
  • 2 Potentiometer for brightness control – 1… 100%
  • Cooling fan with temperature dependent speed control – low noise level
  • Changeable filter in the cooling air in-let
  • Mounting threads on side panels for mounting loading device for roll films, or a densitometer holder
  • Mounting threads on the bottom panel for safe fixing of the viewer on a desk in mobile laboratories
Dimmer Control
Long Bulb Life
Low Heat Output
Low Noise
Viewing Window
17.8″ x 3.2″ / 450 x 80 mm17.8″ x 3.2″ / 450 x 80 mm
Maximum Intensity (Luminance)
300,000 cd/m2 *160,000 cd/m2 *
Maximum Density
>4.5 D **>4.2 D **
Color Temperature
5,000 K – white5,000 K – white
Lamp Life
40,000 hours40,000 hours
Power Requirements
88…264 V / 47…63 Hz88…264 V / 47…63 Hz
Rated Power
400 W250 W
21.2″ x 9.6″ x 8.6″ / 530 x 220 x 205 mm21.2″ x 9.6″ x 8.6″ / 530 x 220 x 205 mm
26 lbs / 11.8 Kg23.5 lbs / 10.7 Kg

*Luminance approximately 10% higher than specified when delivered.
**according to DIN EN 25580, ASTM E1390 maximum evaluable density.

Optional Accessories

Kowolux X Optional Accessories

Roll Film Adapter

Kowolux X Optional Accessories Roll Film Adapter


Calibration certificate for X3/X3eco
Kowolux film roll device for roll films 7 and 10 cm
Spare air filter KOWOLUX X3, 2-pack
X3 ancillary mask - hole Ø 30 mm
X3 ancillary mask - Iris Ø 4-75 mm
X3 ancillary mask for films 10x24 cm
X3 ancillary mask for films 10x40 cm
X3 ancillary mask for films 6x24 cm
X3 ancillary mask for films 6x40 cm
X3 ancillary mask for films 6x48 cm
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