Installation
• Ambientbackgroundtemperaturecompensationfromasecond
temperature sensor (infrared or contact temperature sensor)
ensuresextremely accurateresults. Forexample,the outputof
thesecondunit,setformV output,couldbeconnectedtothe
FTC2analoginput(0to5VDCcorrespondingtolowendand
high end of
temperature range) is utilized for real time
compensation, wherebyboth sensors mustbe setonthe same
temperaturerange.
Target object
Furnace wall
0
–
5 VDC
analog outpu
t
at FTC2 inpu
t
Thermal radiation
of ambient
Thermal radiation
of target
Sensor 1
targeted
to ob
j
ec
t
Sensor 2
targeted
to ambien
t
Figure16:PrincipleofAmbientBackgroundTemperature
Compensation
MID 27