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Light Source Operation
D20980.022 Rev C CV-LS User Manual Page 45
Light Source Operation
General Operation
The CV-LS has a simplified user interface for easy startup and operation. To use the light source in
normal operation, press the Power Switch and adjust the intensity control knob.
The Digital Input pins on the rear Multiport can be used to strobe the LED in 200µs increments. This pin
can be controlled with just a contact closure switch between the Digital Input pin and GND pin, or driven
low from a digital control pin. The default behavior of this pin is Active Low. When the pin is driven low
or connected to GND, the LED will shut down.
More advanced controls over the light source are available through any of the digital interfaces, and are
documented in the Technical User Guide (See the
Error! Reference source not found. section on page
94).
CAUTION
Because of eye hazards, units outside the visible spectrum require a contact closure on the Digital Input
pins of the Multiport to turn the LED on. The user is required to supply sufficient interlocks on this pin to
protect the user from exposure to UV and Infrared (IR) light.
Unit Operating Modes
Mode Selection
There are operational modes that can be easily selected by only using the front knob and power button
on the unit. These modes allow a simplified use of the unit without the more advanced techniques
described in the Technical User Guide (See the
Error! Reference source not found. section on page 94).
The button on the front of the unit, when held down, has the following sequence:

0 to 2 seconds: No Effect (LED ring light will remain in the same state)

2 to 6 seconds: Mode Select (LED ring light will flash ten times per second)

6 to 10 seconds: Save Current Settings (LED ring light will flash two times per second)

>10 seconds: Soft Reset (LED ring light will flash one time per second)
The mode selections are different depending on the type of device you have. See the other sections on
Single Channel Devices and Quad Channel Devices below.