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
µ
mol.m
-2
.s
-1
Resolution
0.3
µ
mol.m
-2
.s
-1
Linearity
better than 1%
Accuracy
+/- 10%
Analogue output
1 mV per
µ
mol.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
µ
mol.m
-2
.s
-1
Maximum range
2500
µ
mol.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
