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Document: LT0273 MX4428 MXP Engineering / Technical Manual
Device Processing
Issue 1.5 24 March 2006 Page 9-7
Enhancement Multiplier
0
0.5
1
1.5
2
2.5
3
0 5 10 15
Temperature Rate of Rise (°C/min)
Multiplier
Param=12
Param=6
Figure 9.3 Enhancement of smoke reading for temperature rate of rise
9.4.3 FASTLOGIC PROCESSING
When “FastLogic” is selected, most processing is done within the proprietary “FastLogic”
module. The internals of that module are beyond the scope of this manual.
Subtractor
+
-
Calibration
Adder
TV = Tracked Value = Assumed Clean Air Value
(Average of 1st reading and factory stored pedestal)
Raw Smoke
Value
Calibrated
Value
Fuzzy Logic Module
Raw heat value
(direct from detector)
Mode
PreAlarm
Alarm
Figure 9.4 Photo Processing Diagram - FastLogic