SI-111 and SI-111SS Precision Infrared Radiometers
5
6. Specifications
Features:
•
Measures surface temperature continuously in the field
•
Provides road surface, plant canopy, soil surface, snow surface, and
water surface temperature measurements
•
Avoids influencing the temperature providing more accurate
measurements
•
Ideal for providing spatial averages
•
Rugged construction—two temperature probes housed in an
aluminum body with a germanium window
•
Compatible with Campbell Scientific CRBasic dataloggers: CR300
series, CR6 series, CR800 series, CR1000, CR1000X, CR3000,
CR5000, and CR9000(X)
Input Power:
2.5 V excitation for thermistor
Absolute Accuracy:
±0.2 °C @ –10 to 65 °C
1
±0.5 °C @ –40 to 70 °C
2
Uniformity:
±0.1 °C @ –10° to 65 °C
±0.3 °C @ –40° to 70 °C
Repeatability:
±0.05 °C @ –10 to 65 °C
±0.1 °C @ –40 to 70 °C
Mass:
190 g
Length:
6.3 cm
Diameter:
2.3 cm
Response Time:
Less than 1 second to changes in target
temperature
Target Output Signal:
60
µ
V per °C difference from sensor body
Body Temperature
Output Signal:
0 to 2500 mV
Optics:
Germanium lens
Wavelength Range:
8 to 14 µm
Field of View:
22° half angle
Operating
Environment:
Highly water resistant, designed for
continuous outdoor use; operating range is
–55 to 80 °C, 0 to 100% RH
1
Where target temperature is within 20 °C of sensor body temperature.
2
Where target temperature is greater than 20 °C of sensor body temperature.