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PerkinElmer Optoelectronics
6.4.3 Video Offset
Video Offset is determined by DIP switches 6, 7 and 8 as shown in Table 6
Table 6 Video Offset Selection
Range DIP Switch #6 DIP Switch #7 DIP Switch #8
Nominal Offset (mV)
0
ON
ON
ON
0
1
ON
ON
OFF
6.4
2
ON
OFF
ON
12.8
3
ON
OFF
OFF
19.3
4
OFF
ON
ON
25.7
5
OFF
ON
OFF
32.1
6
OFF
OFF
ON
38.6
7
OFF
OFF
OFF
45.0
6.4.4 Camera Powerup
1. Set DIP Switch #1 and DIP Switch # 2 to ON (Switch Up) to select
Master Mode.
2. Turn on the camera power.
6.4.5 Focusing the Camera
1. Adjust the external light source for an acceptable image intensity without
blooming.
2. Adjust the Z position of the camera to achieve the sharpest transition from
black to white.
Note:
Performing this action only ensures that the test target is imaged in focus on the
sensor array within the limitations of the customer supplied lens.
6.4.6 Verifying Camera Gain Control
1. Reposition the test target in the Y direction such that the gray shade strip
is displayed in place of the black and white bars.
2. Adjust the external light source such that the white portion of the strip is
displayed without blooming and note the number of gray shade steps that
are visible.
3. Decrease the external light source intensity such that some of the darker
gray shade steps are no longer discernable.
4. Increase the video gain of the camera and verify that the gray scale steps
reappear.
5. Return the video gain to the default setting of 1.
