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RayTek 54301 Thermometer User Manual

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Installation

5.4.4TriggerandHoldFunction

TheFTC3inputcanbeusedasexternaltriggerinconjunctionwith

thesoftwaretriggermodesetting“Trigger”or“Hold”.



External switch:

- contact relay,

- transistor,

- TTL gate, …

Figure17:WiringofFTC3asExternalInput

Trigger:AlogicallowsignalattheinputFTC3willresetthepeakor

valleyholdfunction.Aslongastheinputiskeptatlogicallowlevel

thesoftwarewilltransfertheactualobjecttemperaturestowardthe

output. At the next

logical high level, the hold function will be

restarted.

Temp



object temperature

output temperature

FTC3

Figure18:FTC3forResettingthePeakHoldFunction

Time

28 MID

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