Instruction manual
4.1 TEACH Selection
The DF-G1 can be programmed for one of the following TEACH/SET methods:
•
Two-Point TEACH
• Dynamic TEACH
• Window SET
• Light SET
• Dark SET
• Calibration SET
NOTE: A TEACH Selection
must be selected by programming before TEACH/SET methods can be
used.
4.2 Response Speed
The DF-G1 can be programmed for one of the following Response Speeds:
Response Speed Display Range Crosstalk Avoidance Algorithm
200 µs (High Speed) 0 - 4000 Disabled
500 µs (Standard) 0 - 4000 Enabled
2000 µs (Long Range) 0 - 9999 Enabled
5000 µs (Extra Long Range) 0 - 9999 Enabled
4.3 Offset Percent
The Offset Percent is used during the Window, Light, or Dark SET methods. The threshold(s) are positioned a
programmable % offset from the taught condition. The allowable range depends upon the Response Speed Mode, as
shown below:
Response Speed MIN % MAX %
200 µs (High Speed) 10 999
500 µs (Standard) 10 999
2000 µs (Long Range) 2 999
5000 µs (Extra Long Range) 2 999
The offset percent can also be programmed to Minimum Offset. This allows the
DF-G1 to set the
threshold(s) as close as possible to the presented condition, but still provide for reliable sensing.
NOTE: Offset Percent MUST be programmed to Minimum Offset for Dark SET to accept conditions of
no signal (0 counts).
4.4 Auto Thresholds
Auto Thresholds can be programmed to be ON/OFF. The Auto Thresholds algorithm continuously tracks slow changes in
the taught condition(s), and optimizes the threshold(s) to provide for reliable sensing. For Two-Point and Dynamic TEACH,
the algorithm optimizes the threshold to be centered between the light and dark conditions. For Window, Light, and Dark
SET, the algorithm optimizes the threshold(s) to maintain the programmed Offset Percent from the taught condition.
•
After programming Auto Thresholds to ON, it is highly recommended to re-perform the TEACH/SET method
• Manual Adjustments are disabled when Auto Thresholds are ON
• Auto Thresholds are automatically disabled in Calibration SET (see Calibration SET on page 22)
DF-G1 Expert
™
Dual Display Fiber Amplifier
10