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RayTek MI Miniature Infrared Sensor Thermometer User Manual

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Operation

MI 41

6.4.3ValleyHold

Theoutputsignalfollowstheobjecttemperatureuntilaminimumis

found.Oncetheholdtimeisexceededtheoutputsignal,tracksand

outputtheactualobjecttemperatureandthealgorithmwillstartover

again.Therangefortheholdtimeis0.1to998.9s.



Figure27:ValleyHold

Adefinedholdtimeof999s(symbol“∞”inthedisplay)willputthe

deviceintocontinuousvalleydetectionmode.

A low level input (GND) at external input FTC3 will promptly

interrupttheholdtimeandwillstarttheminimumdetectionagain.

output temperature

object temperature

hold time

hold time

Temp

Time

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