RayTek MI Miniature Infrared Sensor Thermometer User Manual


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Installation
MI 27
• Ambientbackgroundtemperaturecompensationfromasecond
temperature sensor (infrared or contact temperature sensor)
ensuresextremelyaccurateresults.Forexample,theoutputof
thesecondunit,setformVoutput,couldbeconnectedtothe
FTC2analoginput(0to5VDCcorrespondingtolowendand
high end of
temperature range) is utilized for real time
compensation,wherebybothsensorsmustbesetonthesame
temperaturerange.
Figure16:PrincipleofAmbientBackgroundTemperature
Compensation
Sensor 2
targeted
to ambien
t
Sensor 1
targeted
to ob
j
ec
t
Thermal radiation
of ambient
Thermal radiation
of target
0
–
5 VDC
analog outpu
t
at FTC2 inpu
t
Furnace wall
Target object
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