Ametek Land Cyclops 055L - Complex Temperature Measurement; Typical Complex Temperature Measurement Application

9 - 3
Cyclops LPortable Thermometers
User Guide
9.2 Operation (Example 2: complex temperature measurement)
Insomeindustrialapplications,awindoworviewingportmaybesituated
betweenthethermometerandthetargetobject.Thiscanleadtoareductionin
theamountofradiantenergyreachingthethermometerfromthetarget.
ThefollowinginstructionsdetailtheoperationofaCyclops inatypicalcomplex
temperaturemeasurementapplication(asinFig.9-1).
Fig.9-1Typicalcomplextemperaturemeasurementapplication
Viewing port window
e.g.Glass-typicalwindow
compensationfactor
(0.920)
Hottarget:Mild steel
Typicalemissivityvalue(0.35)
1) Checkthebatterystatus,ensurethatthereissucientbatterylife
remaining.
2) GointoMenu Mode,opentheTrigger ModemenuandselectClassic
Mode.
3) EntertheEmissivityvalueforthematerialunderobservation(0.35).
If the window compensation factor of the viewing window/port is known:
4) SetWindow Compensation to On.
5) Entertheknowncompensationfactor(e.g0.920forGlass,0.880for
Sapphire)
If the ‘Window Compensation’ factor of the viewing window/port is not known:
6) Takeandrecordareadingwiththethermometerofaknowntemperature
value,withtheemissivitysettocorrespondandtheWindow
Compensationfactorsettodefault(i.e.blackbodyheatsource,
emissivitysetto1.00andWindow Compensationsetto1.000).
7) Placeaspareviewingwindow/portbetweenthethermometerandthe
blackbodyheatsourceandtakeanewtemperaturereading.
8) EntertheWindow Compensation > Onsub-menuandamendthe
WindowCompensationfactorvaluewiththe
and keysuntilthe
displaytemperaturereadsthesameastherecordedvaluetakenfrom
theknownvaluesource.YoumustnowusethisWindow Compensation
value,asitiscorrectforthechosenviewingwindow/portmaterial(e.g.
0.880).
9) SelecttheInstantaneoustemperaturemeasurementoption.