Amprobe IR-450 Manuale d'uso - Pagina 12

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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.

Temperature

Range

Accuracy at

23°C ±2°C

<80﹪RH

Best display

Resolution

Response

Time

Wavelength

Spectral

Response

Emissivity

D:S

-30°C to 500°C (-22°F to 932°F)

-30°C to 0°C (-22°F to 32°F): ±2°C (±4°F)

1°C to 10°C (34°F to 50°F): ±1.5°C (±3°F)

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.

0.5°F / 0.2°C

0.5 s

630nm to 670nm

6.5µm to 18µm

E=0.95

8:1(calculated at 80% energy)