Apogee SIL-411 Kullanıcı El Kitabı - Sayfa 6

Ölçüm Cihazları Apogee SIL-411 için çevrimiçi göz atın veya pdf Kullanıcı El Kitabı indirin. Apogee SIL-411 20 sayfaları. Commercial infrared radiometer

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Apogee SIL-411 Kullanıcı El Kitabı

SPECIFICATIONS

Input Voltage Requirement
Current Drain
Calibration Uncertainty (0 to 50 C),
when target and detector
temperature are within 20 C
Measurement Repeatability
Stability (Long-term Drift)
Response Time
Field of View
Spectral Range
Operating Environment
Dimensions
Mass
Cable
Calibration Traceability
Apogee SI series infrared radiometers are calibrated to the temperature of a custom blackbody cone held at
multiple fixed temperatures over a range of radiometer (detector/sensor body) temperatures. The temperature of
the blackbody cone is measured with replicate precision thermistors thermally bonded to the cone surface. The
precision thermistors are calibrated for absolute temperature measurement against a platinum resistance
thermometer (PRT) in a constant temperature bath. The PRT calibration is directly traceable to the NIST.
Spectral Response
1.5 mA (quiescent), 2.0 mA (active)
Less than 2 % change in slope per year when germanium filter is maintained in a
clean condition (see Maintenance and Recalibration section below)
0.6 s, time for detector signal to reach 95 % following a step change; fastest data
transmission rate for SDI-12 circuitry is 1 s
8 to 14 µm; atmospheric window (see Spectral Response below)
-55 to 80 C; 0 to 100 % relative humidity (non-condensing)
23 mm diameter, 60 mm length
5 m of six conductor, shielded, twisted-pair wire; TPR jacket (high water resistance,
high UV stability, flexibility in cold conditions); pigtail lead wires
Spectral response of SI series infrared
radiometers. Spectral response (green line) is
determined by the germanium filter and
corresponds closely to the atmospheric window
of 8-14 µm, minimizing interference from
atmospheric absorption/emission bands (blue
line) below 8 µm and above 14 µm. Typical
terrestrial surfaces have temperatures that yield
maximum radiation emission within the
atmospheric window, as shown by the blackbody
curve for a radiator at 28 C (red line).
SIL-411
5.5 to 24 V DC
0.5 C
Less than 0.05 C
22° half angle
190 g (with 5m of lead wire)