Apogee MI-220 Kullanıcı El Kitabı - Sayfa 6
Ölçüm Cihazları Apogee MI-220 için çevrimiçi göz atın veya pdf Kullanıcı El Kitabı indirin. Apogee MI-220 16 sayfaları. Mi series infrared temperature meter
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SPECIFICATIONS
Calibration Uncertainty (-20 to 65 C),
when target and detector temperature
are within 20 C
Calibration Uncertainty (-40 to 80 C),
when target and detector temperate are
different by more than 20 C
(see Calibration Traceability below)
Measurement Repeatability
Stability (Long-term Drift)
Response Time
Field of View
Spectral Range
Operating Environment
Meter Dimensions
Sensor Dimensions
Mass
Cable
Calibration Traceability
Apogee MI series infrared temperature meters 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
MI-210
MI-220
± 0.3 C
± 0.3 C
± 0.5 C
± 0.5 C
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; meter
firmware averaging results in a 3 s response for digital output on meter screen
22º half angle
18º half angle
8 to 14 µm; atmospheric window (see Spectral Response below)
0 to 50 C; less than 90 % non-condensing relative humidity up to 30 C; less than 70
% non-condensing-relative humidity from 30 to 50 C
126 mm length; 70 mm width; 24 mm height
23 mm diameter; 60 mm length
270 g (with radiation shield)
2 m of four conductor, shielded, twisted-pair wire; additional cable available;
santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold
MI-230
± 0.4 C
± 0.6 C
± 0.1 C
14º half angle
conditions)
Spectral response of MI 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).
6
MI-2H0
± 0.3 C
± 0.5 C
32º horizontal
half angle; 13º
vertical half angle