User manual
Table Of Contents
- N
- Introduction
- Introduction
- Getting Started
- S
- SunScan Tutorial
- M
- Menus and Screens
- More Psion and file handling notes
- M
- Measurement options
- L
- LAI theory
- Technical Reference section
- Maintenance and repair
- Troubleshooting
- Psion Workabout
- Problems running the SunData application.
- While running SunData
- SunData reports “SunScan probe not connected”.
- SunData recognises the SunScan probe, but fails to take readings.
- On running SunData, all the system settings are scrambled.
- “Out of memory” reported on drive A:.
- “Insufficient power to write data” reported.
- When transferring files to a PC, data is transferred, but there are repeated checksum or device IO errors.
- SunScan or BFS give inconsistent light readings.
- Technical Support
- Specifications
- PAR Performance
- Appendices
- Index
70 •
••
• Technical Reference section Document code: SS1-UM-1.05
Specifications
SunScan Probe type SS1
Active area 1000 x 13 mm wide. Sensor spacing 15.6 mm.
Spectral response 400 - 700 nm (PAR)
Measurement time 120 ms
Maximum reading
2500 µmol.m
-2
.s
-1
Resolution
0.3 µmol.m
-2
.s
-1
Linearity better than 1%
Accuracy +/- 10%
Analogue output
1 mV per µmol.m
-2
.s
-1
Serial interface RS232, 9 pin female 'D' connector
Environmental protected to IP65, 0° - 60°C working temperature
Size (overall) 1300(l) x 100(w) x 130(h) mm
Power 4 x AA Alkaline cells (lifetime up to 1 year)
Beam Fraction Sensor type BF1
Outputs
Total PAR, Diffuse PAR. 1 mV per µmol.m
-2
.s
-1
Maximum range
2500 µmol.m
-2
.s
-1
Cable length 7 m standard
Extension cables 10 m, 25 m, 50 m
Mounting 1/4 inch Whitworth tripod socket
Environmental protected to IP65, 0°...60°C working temperature
Size 160 x 80 x 65 mm (excluding shade ring)
Power Provided from SunScan (5 - 12 V)
Data Collection Terminal type DCT1 (Psion Workabout)
Full specifications for the Workabout are contained in its User Guide, app B p277.
Screen / keyboard 10 lines x 40 characters / full alphanumeric
Data storage Flashcards, 256k or 1Mb - effectively unlimited
Display options a) LAI b) PAR average c) ALL individual sensor readings
Environmental IP 54, RH 0%...90% non condensing, -20°...60°C
Drop resistance 1 m onto concrete
Power Ni-Cd pack (up to 15 hours per charge) or 2 x AA Alkaline cells
PC as Data Collection device
Alternatively, the SunScan probe can be operated directly from a PC, minimum
requirements:
• MS-DOS 3.3, and higher
• 512k RAM
• 80 x 25 character display
• RS232 port
• 3.5" FDD