Emissivity
77
-
8.2 Determination of unknown emissivity
► First determine the actual temperature of the measuring object with a thermocouple or contact sensor.
Second, measure the temperature with the infrared thermometer and modify the emissivity until the
displayed result corresponds to the actual temperature.
► If you monitor temperatures of up to 380 °C you may place a special plastic sticker (emissivity dots –
Part
No.:
ACLSED
) onto the measuring object, which covers it completely.
Figure 43:
Plastic sticker at metal surface
Set the emissivity to 0.95 and take the temperature of the sticker. Afterwards, determine the temperature
of the adjacent area on the measuring object and adjust the emissivity according to the value of the
temperature of the sticker.
Summary of Contents for 05M
Page 1: ...Operator s Manual optris PI 400i 450i 450i G7 640i 640i G7 05M 08M 1M Infrared camera...
Page 30: ...30 Figure 5 PI 400i PI 450i PI 450i G7 dimensions mm...
Page 31: ...Mechanical Installation 31 Figure 6 PI 640i PI 640i G7 optics 29 33 53 60 dimensions mm...
Page 32: ...32 Figure 7 PI 640i PI 640i G7 optics 13 15 dimensions mm...
Page 33: ...Mechanical Installation 33 Figure 8 PI 640i PI 640i G7 optics 80 90 dimensions mm...
Page 34: ...34 Figure 9 PI 640i microscope optics 10 12 dimensions mm...
Page 35: ...Mechanical Installation 35 Figure 10 PI 05M PI 08M PI 1M dimensions mm...
Page 38: ...38 Figure 16 Focusing screws for focus ring...
Page 58: ...58 Figure 34 USB Server Gigabit...
Page 64: ...64 6 2 Software window Figure 36 Software window 1 2 2 2 3 4 5 6 7 8 9 10 11...
Page 73: ...Basics of Infrared Thermometry 73 Figure 40 Non contact thermometry...
Page 80: ...80 Appendix A Table of emissivity for metals...
Page 81: ...Appendix A Table of emissivity for metals 81...
Page 82: ...82 Appendix B Table of emissivity for non metals...
Page 90: ...90 Figure 49 Relay output at industrial PIF...
Page 91: ...Appendix G Declaration of Conformity 91 Appendix G Declaration of Conformity...
Page 92: ...optris PI MA E2021 06 A...
