•
Recommended for applications where only one condition is known, for example a stable dark background with
varying lighter targets
•
See
on page 5 for programming the Offset Percent setting
NOTE: Offset Percent MUST be programmed to Minimum Offset to accept conditions of no signal (0
counts).
A single sensing condition is presented, and the sensor positions a threshold a programmable % offset above the
presented condition. When a condition lighter than the threshold is sensed, the output either turns ON or OFF, depending
on the LO/DO setting.
Sensor positions
threshold a programmable
% offset above the
presented condition
Threshold position
adjusted by
Manual Adjust
Darkest
(no signal)
Most Light
(saturated
signal)
Output OFF
Output ON
Condition
Presented
Figure 6. Dark SET (Light Operate shown)
Calibration SET
•
Sets a threshold exactly at the presented condition
•
Threshold can be adjusted using "+" and "-" rocker button (Manual Adjust)
A single sensing condition is presented, and the sensor positions a threshold exactly at the presented condition. When a
condition lighter than the threshold is sensed, the output either turns ON or OFF, depending on the LO/DO setting.
Sensor positions
threshold exactly at
the presented condition
Threshold position
adjusted by
Manual Adjust
Darkest
(no signal)
Most Light
(saturated
signal)
Output OFF
Output ON
Condition
Presented
Figure 7. Calibration SET (Light Operate shown)
Troubleshooting
Manual Adjustments Disabled
Manual adjustments are disabled when Auto Thresholds are ON. If a manual adjustment is attempted while Auto
Thresholds are ON, the Green display will flash
.
Percent Minimum Difference after TEACH
The Two-Point and Dynamic TEACH methods will flash a % minimum difference on the displays after a PASS or FAIL.
Value
PASS/FAIL
Description
0 to 99%
FAIL
The difference of the taught conditions does not meet the required minimum
100 to 300%
PASS
The difference of the taught conditions just meets/exceeds the required minimum,
minor sensing variables may affect sensing reliability
DF-G1 Expert
™
Dual Display Fiber Amplifier
8
www.bannerengineering.com - Tel: +1-763-544-3164
P/N 161275 Rev. D
