Emissivity; Specification - Amprobe IR-450 Manual De Uso

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3. Not recommended for use in measuring shiny or
polished metal surfaces (stainless steel, aluminum,
etc.). See Emissivity.
4. Steam, dust, smoke, etc., can prevent accurate
measurement by obstructing the unit's optics

Emissivity

Most organic materials and painted or oxidized surfaces
have an emissivity of 0.95 (pre-set in the unit). Inaccurate
readings will result from measuring shiny or polished
metal surfaces. To compensate, cover the surface to be
measured with masking tape or flat black paint. Allow
time for the tape to reach the same temperature as the
material underneath it. Measure the temperature of the
tape or painted surface.

SPECIFICATION

Temperature -30°C to 500°C (-22°F to 932°F)
Range
Accuracy at -30°C to 0°C (-22°F to 32°F): ±2°C (±4°F)
23°C ±2°C 1°C to 10°C (34°F to 50°F): ±1.5°C (±3°F)
<80﹪RH 11°C to 40°C (52°F to 104°F): ±1°C (±2°F)
41°C to 500°C (106°F to 932°F): ±1.5°C
(±3°F) or ±1.5% of reading, whichever
is greater.
Best display 0.5°F / 0.2°C
Resolution
Response 0.5 s
Time
Wavelength 630nm to 670nm
Spectral 6.5µm to 18µm
Response
Emissivity E=0.95
D:S 8:1(calculated at 80% energy)
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