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© 2012
Campbell Scientific
August 7, 2013
Specifications
Field of View (half angle):
IR100: 4-5
°
IR120: 20
°
Dimensions:
92 mm long by 28 mm diameter
Fitted with two 6 mm threaded
mounting
holes.
Response Time:
<1 second to changes in target
temperature
Target Output Signal:
IR100: 5 mV per
°
C
IR120: 20 mV per
°
C
(difference from sensor body)
Signal Offset:
Removed by calibration (supplied)
Typical Noise Level as measured by a CS datalogger:
IR100: 0.2
°
C
RMS
IR120:
0.05
°
C RMS
Wavelength Range:
IR100: effective bandwidth
(see the graphs below)
7-14 µm (some sensitivity from 2-6 µm)
IR120: 8 to 14 µm
Calibrated Range:
-25
°
C below body temperature to
+25
°
C above body temperature
Operating Range:
-25
°
C to +60
°
C
Accuracy over Calibrated Range:
±0.2
°
C (against a blackbody source
over
a
50
°
C temperature span under
laboratory
conditions)
Current Consumption:
0.4 mA (when excitation applied),
0
mA
quiescent
Sensor output impedance:
320 Ω
Thermopile Excitation Voltage:
+2 to +3.5V
Thermistor Excitation Voltage:
-2.5V
Options:
IR-SS Solar radiation shield
IR-SS Solar radiation shield (with optional pole band
clamp)
009905 IR1x0 Mounting Arm (0.9 m long)
Sensor mounted in the IR-SS Solar Sensor
Shield fitted to an 009905 mounting arm
The IR-SS is designed to protect the sensor from rapid changes of temperature
caused by direct exposure to the sun which can lead to transient errors in
temperature measurement. It can reduce direct heating of the sensor by the sun by
as much as 10
°
C. It also gives some protection from exposure to rain and snow. The
IR-SS is made from high grade UV stable plastic and has plastic mounting fittings
internally to prevent heat conduction with the outside of the tube. It has a 6 mm
threaded stainless steel mounting hole.
A mounting arm (009905) is available to hold the sensor out from the side of a
Campbell Scientific instrument tripod or tower. The sensor can be mounted directly
on this arm or for best accuracy when it is fitted inside an IR-SS Solar Shield.
An IR-SS fitted to a pole with an optional band
clamp fitting
