Chentronics iScan 3 Manual page 6

TOLERANCE NOTES
FABRICATED TOLERANCES
≥ 2 ft (610 mm) ± 0.250 in (6.4 mm)
< 2ft (610 mm) ± 0.125 in (3.2 mm)
MACHINED TOLERANCES
± 0.050 DECIMAL DIM (1 PLACE)
± 0.010 DECIMAL DIM (2 PLACES)
± 0.005 DECIMAL DIM (3 PLACES)
LED STATUS INDICATORS; "Ring of Light":
The iScan®3 Flame Scanner provides visual feedback on flame conditions and system health with a bright
LED display.
The "Ring of Light" communicates the scanner's operating modes, including FLAME SIGNAL STRENGTH,
GAIN LEVEL (the amount of signal amplification), and WARNINGS/FAULTS. This ring aids with "sighting"
the flame, or in other words: proper aiming of the scanner. This must be done carefully to ensure a good
flame signal is present over various operating conditions. With the "Ring of Light," the operator can quickly
recognize marginal conditions (such as low flame strength and/or high gain).
RELATED DOCUMENT – MUST COMPLY WITH SCHEDULE DOCUMENT(S):
FOR A LIST OF RELEVANT PATENTS
AND TRADEMARKS PLEASE SEE
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MNL-ISCAN3
iScan®3 MANUAL
DCO No
.
14724
DWG. No.
Figure 2: LED Status indicator
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