UVP UVX - Page 3

UVX Radiometer 3
List of Figures
Figure 1: Rear and Side Views of Radiometer.............................................................................................. 4
Figure 2: Radiometer Functional Block Diagram ........................................................................................ 14
Figure 3: Radiometer Circuit Board (Component Location) ........................................................................ 14
Figure 4: Calibration Current Source .......................................................................................................... 15
Figure 5: LCD Display Pin-outs ................................................................................................................... 15
Figure 6: UVX-25 Sensor Solarization Curve ............................................................................................. 17
Figure 7: Typical UVX-25 Sensor Spectral Response ................................................................................ 17
Figure 8: Typical UVX-31 Sensor Spectral Response ................................................................................ 18
Figure 9: Typical UVX-36 Sensor Spectral Response ................................................................................ 18
Figure 10: Typical Sensor Response Versus Incidence Angle ................................................................... 19
Figure 11: Schematic of UVX Series Sensor .............................................................................................. 21
Figure 12: Measurement of Irradiance ........................................................................................................ 21
Figure 13: Typical Output From Low Pressure Mercury Lamp ................................................................... 22
Figure 14: Hypothetical Light Source Having an Output at 270nm Wavelength ........................................ 25
Figure 15: Response of Three Sensors Calibrated to Yield the Same Output at 254nm Wavelength ....... 25
Figure 16: Continuous Emitter, 285nm Phosphor Coated UV Lamp .......................................................... 26
Figure 17: Example, Illustrating Why Sensor Field of View is Important When Measuring Irradiance ....... 28
Figure 18: Projected Area of Sensor ........................................................................................................... 28
Figure 19: Cosine Response of Typical UVX Sensor (Polar Plot) .............................................................. 29