SunScan User Manual v 1.05
Menus and Screens
••••
31
Settings
Titles
Title
≤≤≤≤
40 chars.
Title name is stored in the data file heading, and is displayed on
the Title screen.
(contd.)
Group
≤≤≤≤
40 chars.
Name for a group of readings. A new name (or setting change)
starts a new group.
Site
Site Name
≤≤≤≤
40 chars.
Name of your measurement site.
Latitude
-90
°°°°
to +90
°°°°
Latitude of your measurement site. Use negative numbers south
of equator.
Longitude
-180
°°°°
to
+180
°°°°
Longitude of your measurement site. Use negative numbers east
of Greenwich meridian.
Time &
Date
Local time
Set clock to the time at the measurement site.
Date
Today’s date.
Local time
is GMT
-12.0 to +13.0
Offset of local time zone from GMT. Remember to include
provision for any local “Summer” time etc.
Display
Display:
LAI
Display:
PAR
Display:
All
Same as for
PAR
, but individual readings stored to the data file.
'Sample'
name
≤≤≤≤
6 chars.
Change name if ‘Sample’ is not appropriate.
'Plot' name
≤≤≤≤
6 chars.
Change name if ‘Plot’ is not appropriate.
Utils
Calibrate
Restore
Factory
Calibration
Restores each photodiode's calibration coefficient as determined
by Delta-T.
Recalibrate
SunScan
Calculate and reset the individual photodiode calibration
coefficients using the Beam Fraction sensor as a reference.
Autolog
(setup
screen)
SunScan will operate unattended in whatever mode has been set-
up. Complete all the screen entries then press
Enter
to initiate
Autolog process.
Start
Date, time
Type in start date and time. These can be in the past 24 hours to
allow alignment with particular periods.
Stop
Date, time
Type in date and time to finish. Must be in the future.
Read
interval
hh:mm:ss
Type in the sampling interval. Every reading is stored.
Minimum 00:00:01, maximum 23:59:59.
Average
interval
hh:mm:ss
Stores averages at the specified interval. Should be a multiple of
the read interval. Zero gives no averages.
Ignore
nighttime?
yes, no
Yes: readings are not taken at night.
No: readings are continuous.
(progress
screen)
Sleep, (or
Off)
Blanks the screen. This is the usual condition. Press
On/Esc
to re-
awaken it.
Cancel
Stops the Autolog process on demand.
Comms
Test
Dumb terminal mode. Factory setup use only.
About
Displays Psion SunData s/w version, and the battery voltage and
status for both the SunScan probe and Workabout.
Solar Zenith
Incident PAR
Transmitted PAR
Photodiode spread
Beam Fraction
Leaf Area Index
Transmitted PAR
Photodiode spread
Incident total PAR
Incident diffuse PAR
