THORLABS DC4104, Operation Manual

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© 2018 Thorlabs 14
DC4104
Attention
A wrong and too high LED maximum current limit can cause damage to the LED. Prior to chan-
ging the LED maximum current limit of the LED head check if the LED can handle this current!
LED Configuration
For LEDs with an EEPROM, the LEDs maximum current can be temporarily reconfigured. This
value remains valid until the DC4104 is switched off. After switching on, the individual LED's
limit current is read out from the EEPROM and becomes valid.
Warning
Exceeding a given limit may lead to destruction of the LED. Please be aware of the fact, that no
warranty applies for the LED in such case!
The modification of LED's max. current is a hidden entry in the 'User Limit Current' menu: Go to
the 'User Limit' screen described above and select the channel. Then press and hold the 'LED'
button for about three seconds.
A sub menu appears and the LED's maximum current can be set. Press the 'Ok' button to se-
lect the 'Maximum Current Limit' menu. The multicontrol knob is used to change the value and
has to be confirmed with the 'Ok' button or canceled with the 'ESC' button.
3.2.2 Settings
Within the system configuration the LCD backlight brightness can be set. Select 'Settings' from
the main menu via the multicontrol knob and press 'Ok'. A sub menu appears and the 'Bright-
ness' setting can be accessed by pressing the 'Ok' button. The multicontrol knob is used to
change the brightness of the LCD backlight between 0 and 100%. Confirm your setting with 'Ok'
or cancel it with 'ESC'.