Rev: 2.2, 31-Jan-2022 © 2022 Thorlabs Page 14
DC4100 4 Computer Interface
Select your DC4100 - 4 Channel LED Driver and click 'Accept'. The device will be connected
and the last active mode will be entered. The upload of the actual values on the system may
take some seconds.
You can disconnect the DC4100 by clicking on the 'Disconnect' button or by selecting 'Menu ->
Disconnect':
4.4.2 Constant Current Mode
The constant current can be selected by pressing the 'Constant Current Mode' tab. All connec-
ted LEDs must be switched off.
The value can be changed directly by typing into the numeric control, using the small arrows, or
changing the slider. If you enter a numerical value, please press 'Enter' to confirm it. The maxi-
mum value depends on the user current limit, which is set in the configuration menu.
The individual LEDs can be switched on or off by clicking on the LED figure below the corre-
sponding slider. In the picture below, channel 2 and channel 4 are switched on.
The button in the left lower corner is used to change between the output modes 'Single Selec-
tion' and 'Multi Selection'. Within the 'Single Selection Mode' only one LED can be switched on
while within the 'Multi Selection Mode' up to four LEDs can be used.
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