The 201331 20 / 201331 20-1 is a 300 Watt Xenon light source designed for use in general endoscopic surgery. The light source provides the illumination necessary for most endoscopic documentation requirements. 

The Xenon lamp color temperature approximates bright sunlight and is considered unmatched for visual and photographic color rendition. Full intensity is reached immediately without a warm-up period. 

The 201331 20 / 201331 20-1 Xenon light source is run at a constant power (about 300 W) and is dimmed by a microprocessor-controlled opto-mechanical attenuator. This ensures the greatest range of illumination without arc instability problems and the longest lamp lifetime. 

The brightness of the 201331 20 / 201331 20-1 Xenon light source can be automatically controlled by any endoscopic video camera with automatic shutter

Basic features

• Manual brightness control

The brightness can be adjusted manually by means of buttons. The brightness can be temporarily

reduced to very low (standby) for convenience when changing operating instruments.

• Automatic video – XENON 300 model 201331 20

The light source controls the brightness of its light by measuring the video signal feedback from the

video camera (supplied by the user). When the video signal is greater than optimum, the illuminator

output is reduced (and vice-versa), preventing the loss of image quality. The microprocessor

automatically detects the position of the endoscope image on the screen and will follow it (if it stays

within the video field) to continue to monitor the brightness.

Video connectors (BNC type) are located on the rear of the device. Errant connections are impossible,

since both connections are auto-terminating types.

Video communications for 201331 20-1 Xenon light sources is provided via the KARL STORZ

Communication Bus (KARL STORZ-SCB®). KARL STORZ-SCB® connectors are provided at the rear of

the device.

Note: Manual or automatic mode is selected by pressing the "M" (Mode) button.

• Overheating indicator

If the operating temperature of the light source reaches 40 °C / 104 °F or more (and until it cools down

to about 38 °C / 100.4 °C), the high speed circuit of the fan is activated. At about 55 °C / 131 °F the

a digital display on the front panel blinks E01 and HOT continuously and an audible alarm sounds.

Returning the device to cooler temperatures (less than 55 °C / 131 °F) cancels the alarm and restores

normal operation.