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Learn Status
Status values can be MAN, ON, OFF, or BOTH. (see note)
MAN: Manual mode, no Learning done, or USER has changed at least ONE
of the learned parameters.
ON: Learn ON is done, OFF is not done.
OFF: Learn OFF is done, ON is not done.
BOTH: Both Learn ON and OFF have been done. (see note)
Note: If a user conducts both a Learn On and a Learn Off, then changes any value effecting the
flame calculations, the status will read MANUAL.
Front End Gain
The InSight II scanner has automatic gain control circuitry that continuously adjusts the scanner's
Front End Gain (FEG). The purpose is to keep the raw flame signal within measurable limits. The
FEG value can range from 5 to 255. The current "real-time" Front End Gain value is displayed on
this screen.
With a very weak dim flame (or in darkness) the automatic gain control circuit would increase the
FEG, (up to a maximum value of 255). With a very bright flame, the automatic gain control would
decrease the FEG, (down to a minimum value of 5).
The scanner stores the current real-time FEG value any time a Learn Flame ON procedure is
performed.
To assist in proper flame discrimination, the Flame Quality number will be
automatically reduced whenever the real-time FEG value is higher than the Learned FEG
value.
Example:
If the Learned FEG value was 20, and the real-time FEG is now 40, (indicating a
dimmer
flame), the scanner will
decrease
the Flame Quality number by 50% (20/40). However, if the
Learned FEG value was 20, and the real-time FEG is now 10, (indicating a
brighter
flame), the
Flame Quality number will not be affected.
Flame Signal Strength, Individual Sensors
This screen shows the
individual sensor’s contribution
to the Flame Quality number. Each value is
identified by the corresponding Flame Relay (1:, 2:) indicating whether it is the IR, or UV sensor.
Example 1: "IRFS 1:060 2:010, UVFS 1:030 2:070"
For Flame Relay 1, the infrared sensor has a current Flame Signal of 60, and the ultraviolet sensor
has a Flame Signal of 30. The
Flame Quality
displayed would be their sum of 90.
For Flame Relay 2, the infrared sensor has a current Flame Signal of 10, and the ultraviolet sensor
has a Flame Signal of 70. The
Flame Quality
displayed would therefore be their sum of 80.
Example 2: "IRFS 1:120 2:150, UVFS 1:220 2:000"
For Flame Relay 1, the infrared sensor has a current Flame Signal of 120, and the ultraviolet sensor
has a Flame Signal of 220. Although their sum is 340 the
Flame Quality
display will be capped at
100.
For Flame Relay 2, the infrared sensor has a current Flame Signal of 150, and the ultraviolet sensor
has a Flame Signal of 0. Although their sum is 150 the
Flame Quality
display will be capped at 100.
