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10 Pelco Manual C1961M-B (3/01)
ECLIPSER ADJUSTMENT
The eclipser is set at the factory and usually does not need to be readjusted. However,
if fine tuning is necessary, do the following:
1. Set the DIP switches.
a. AGC: OFF
b. ELC: OFF
c. BLC: OFF
2. Set the IRIS MODE selector.
a. Auto iris lens controlled by video signal - VIDEO
b. Auto iris lens controlled by DC voltage - DC
3. Set the variable resistors and Eclipse DIP switch.
a. THRE: Counterclockwise
b. ECLP: Mechanical center
c. GRAY: Mechanical center
d. ECLIPSER DIP: OFF
4. Set the response selector of the auto iris lens (video type) to AVERAGE. While
viewing an object, set the video output level of the camera to 0.75 Vp-p (100 IRE)
by adjusting the LEVEL VR of the auto iris lens.
5. While viewing a brightly lit object (Refer to Figure 2):
a. Set ECLIPSER DIP switch to ON.
b. Adjust THRESHOLD variable resistor by turning it clockwise. Set the video
output level to clip at 0.8~0.85 Vp-p.
c. Set gray level to 0.35 Vp-p by turning the GRAY variable resistor clockwise
or counterclockwise.
6. While viewing an object in front of a bright background (refer to Figure 3), adjust
the ECLP variable resistor by turning it clockwise or counterclockwise until the
foreground is clear (sharp) and the background appears gray.
GRAY BACKGROUND
Figure 2. Gray Level Setting Figure 3. Image on Monitor
GRAY LEVEL
0.35 VP-P
0.8~0.85 Vp-p
v