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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.
