Kurth Electronic KE8100, Operating Manual

© Kurth Electronic GmbH, All Rights Reserved

4

Operation

1.  ON / OFF

Press the 

ON

 button for 2 seconds to turn on the light source. The display 

will show the wavelength, battery level and modulation frequency. By default, 

the device is set to the wavelengths 1310 nm (KE8200), 850 nm (KE8100) 

and DC light (0 Hz). Press the 

OFF

 button for 2 seconds to turn off the unit.

The 



 symbol in the lower left corner of the display indicates that the 

auto-off 

function is active and that the unit switches off 10 minutes after the last key 

was pressed. Briefly pressing the 

OFF

 key switches off the 

auto-off

 function, 

pressing the 

OFF

 key again reactivates the 

auto-off

 function.

2. Wavelength selection

Pressing the 

𝛌

 button allows you to select the wavelength. The selected wa-

velength is shown in the centre of the LCD display.

3. Modulation output

Pressing the 

Mode

 button allows the selection of the different laser light mo-

dulations. The following options can be selected: 

0 Hz ( DC ), 270 Hz, 330 Hz, 1 kHz and 2 kHz. The selected modulation 

frequency is automatically detected by the 

KE8000 Optical Power Meter

 and 

the measured value is displayed correctly. The selected modulation is shown 

in the upper right corner of the display. 

4. Backlight on / off

Pressing the 

🔆

  button  turns  the  LCD  backlight  on  or  off.  However,  if  the 

backlight is turned off, it will be turned on for 8 seconds each time the key is 

pressed.

5. Battery charge status

When the inserted batteries reach the lower state of charge, the battery in-

dicator changes to  . If the battery voltage falls below the protective voltage, 

the device switches off automatically.

6. Measurement

The measurement is usually carried out in combination with the 

KE8000 Op-

tical  Power  Meter

. Please compare the explanations in the corresponding 

operating instructions or on the following pages.