Sutter Instrument Lambda 421, Руководство по эксплуатации

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LAMBDA 421 OPERATION MANUAL – REV. 1.00N (20170623)
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3. OPERATIONS
This chapter describes the operation of the Lambda 421. The locations of the individual
indicators, controls, and connectors are indicated in the following figure.
Figure 3-1. Locations of individual indicators, controls, and connectors on the Lambda 421 controller.
3.1 Controls
3.1.1 Power Switch
Main power switch turns unit off/on.
3.1.2 Light Source Channel Control Switch (ON/OFF/TTL)
This is a three-position toggle switch that is used to manually turn the LED on, off, or
activate TTL switching through the STROBE BNC connector.
ON: Manually turns on the channel for manual control.
OFF: Turns off internally generated light source and control for the channel. Does not affect
externally supplied light source.
TTL: Internally supplied LED light source on/off state is controlled by TTL triggering (via
STROBE).
3.1.3 Internal/External Control Switch (INT. / EXT.)
This two-position toggle switch is used to determine whether the internal light source for the
channel is controlled manually (front panel) or externally (via an interface to a computer)
turn the LED on, off, or activate TTL switching through the STROBE BNC connector.
3.1.4 Dimness/Intensity Control Knob (0-11)
This rotary knob dims or intensifies the light source for a given channel by adjusting the
current delivered to the internally-powered LED. Current control may cause color shift in the
LED’s spectral output. However, current-controlled dimming may be preferable in situations
involving the use of ultra high-speed cameras. For the CURRENT knob to be effective, the
LED Control Switch must be set to ON or TTL.