KL 2500 LED – Operating instructions
2.4 Light intensity setting
The brightness can be adjusted continuously by
turning the light intensity setting knob (1). The
brightness setting is shown in the LCD display (12)
as a percentage.
Every stop position of the setting knob increases or
decreases the value by 1.0%.
Maximum brightness is reached at a setting of
100.0%. When the brightness control is set at
0.0% there is no more intensity, i.e. the lamp is off.
Attention: Please note that when the brightness
control is set at 0.0% the instrument is not
switched off. When the instrument is switched on
the green control light (11) is lit. Switch off the KL
2500 LED by pressing the on/off switch (2) once
(see
point
2.3
The LCD display (12) indicates the LED energy consumption as a percentage. The control is linear,
whereas the illumination power of the LEDs is not proportional to the current consumption. For this
reason the change in intensity in the upper control range (> approx. 50.0%) is not particularly great,
whilst in the lower control range accordingly greater.
To ensure sensitive brightness adjustment in the lower control range or coarse brightness
adjustment in the higher control range, press the light intensity setting knob (1) to achieve fine-tuned
control in increments of 0.1% or coarse-tuned control in increments of 5.0%. If the light source is in
"fine-tuning mode", "FINE" is shown in the LCD display (12). If the light source is in "rough setting
mode", "COARSE" is shown in the display (12). To reset the light source to "standard setting mode"
press the light intensity setting knob (1) again; the indication will be removed from the display.
2.5 Filter slide
The KL 2500 LED has a filter slide (8) which can be fitted with an insert filter from the filter set
(available as accessory).
"Start-up
procedure").
Please ensure safe power disconnection
by pulling out the power plug!
7/12