RayTek MI Miniature Infrared Sensor - Trigger and Hold Function

Installation
28 MI
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”.

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.

Figure18:FTC3forResettingthePeakHoldFunction
External switch:
- contact relay,
- transistor,
- TTL gate, …
object temperature
output temperature
FTC3
Temp
Time