ADDAC System ADDAC812V Assembly Manual page 11

ADDAC812V Assembly Guide
CALIBRATION:
The side trimmers are attenuator/amplifiers for the led
voltage references.This allows the user to calibrate the led
reaction to more specific needs.
INPUT 1
By default the process described will calibrate the module
TRIMMER
for the ±5v range.
You can set the amplification level up to a factor of 2.1.
For ex. at a factor of 2 the red led will light up if the input
receives a +10v input.
To adjust, rotate clockwise to amplify and counter-clock-
wise to attenuate.
The process is quite simple, preferably input a source
slightly above +5v and rotate the trimmer clockwise until
the red led lights up.
If no precise source is available plug an LFO at about a 1hz
rate and rotate the trimmer clockwise until the red leds
barely lights up.
INPUT 2
TRIMMER
NOTICE:
The trimmers do not influence the THRU Outputs which are
always buffers of the Inputs.
ADDAC SYSTEM page 11