SolarLight Model 540 µTops II Sunphotometer

Overview

The Model 540 µTopsII sunphotometer is a 5 channel hand-held instrument for measuring the atmospheric column easily, accurately and dependably. The Facility’s µTops II sunphotometers have been configured with five filters for the determination of aerosol optical thickness (AOT), including filters at 936nm and 1020nm for the measurement of total water vapour.

Technical Specification

Value
Filters 440±1.5 nm, 675±1.5 nm, 870±1.5 nm, 936±1.5 nm, 1020±1.5 nm,
Full Width Half Maximum 10 nm
Resolution 0.01 W/m²
Dynamic Range 300,000
Field of View 2.5°
Resolution 0.01 W/m²
Precision 1 - 2%
Non-linearity max 0.002% FS
Power Source 4 × AA Alkaline batteries
Weight 0.6 kg
Size 10 × 20 × 4.3 cm
Operating Environment 0 - 50°C

Example Applications

  • Spectral Solar Irradiance
  • Airborne and Satellite Sensor Calibration and Validation
  • Determination of Aerosol Optical Thickness
  • Pollution monitoring
  • Photobiology
  • Environmental monitoring

Units Available for Loan

Model and Serial Number Documents and Software
µTops II Sunphotometer 7321 Manual PyMicrotops3
µTops II Sunphotometer 7343 Manual PyMicrotops3
µTops II Sunphotometer 7346 Manual PyMicrotops3
µTops II Sunphotometer 10563 Manual PyMicrotops3
µTops II Sunphotometer 15621 Manual PyMicrotops3

Field Operation Training Video