Manual

- 8 -
Observation Setup
Observation Starting/Ending Airmass ：
Observation Switching Airmass ： Airmass to switch the way of measurement ※１
Scattering Measurement for Aerosol Observation ： If user do not select, skyradiometer perform only direct sun
measurement.
（ａ）Airmass ＜ Switching Airmass ： Airmass is smaller than ※１, max scattering angle = 180 deg
・Both Side ： skyradiometer steps to scattering angle both clockwise/counterclockwise
direction（※Page 12）
・Interval Setting ： Select time / airmass
・Zenith Measurement for Clouds： measurement at altitude 90 deg （Page 11）
（ｂ）Airmass ＞ Switching Airmass ： Airmass is larger than ※1, max scatting angle = 30 deg
・ Alternation ： Change the direction of scattering step alternately clockwise or
counterclockwise.（※Page12）
Direct Sun Measurement ： Minimum interval 1 minute
Auto Sun-Disk Scan ： Disk scan is recommended to schedule every 7 days
9:00 case-1（
sky：clear） 9:10 case-2（sky：cloud） 9:20
【Example】
Aerosol （every 10min）
and Direct sun （every 1min）
9:01 9:02 9:03 9:04 9:05 9:06 9:07 9:08 9:09 9:11 9:12 9:13 9:14 9:15 9:16 9:17 9:18 9:19
Obs SAVE
User can save obs file with button
[Obs SAVE] and select several files at
different location. User can read out
saved file with button [Obs LOAD].
Complete setting with button “OK”.
aerosol direct sun
direct sun