Presentation; Functioning - Emissivity - Chauvin Arnoux C.A 1864 Manual De Instrucciones

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SUMMARY
1. PRESENTATION ............................................................................................... 18
2. FUNCTIONING - EMISSIVITY .......................................................................... 18
3. DESCRIPTION .................................................................................................. 19
4. USE .................................................................................................................. 20
5. SPECIFICATIONS.............................................................................................. 24
6. WARRANTY ...................................................................................................... 25
7. MAINTENANCE ................................................................................................ 25
8. TO ORDER ........................................................................................................ 27
APPENDIX ............................................................................................................ 64

1 PRESENTATION

The C.A 1864 and C.A 1866 infrared thermometers are for the remote
measurement of the temperature of most materials without physical contact, with
an emissivity coefficient situated between 0,1 and 1.
They can also measure the temperature of polished metal surfaces after treatment
(marking with opaque labels or mat spray paint) to limit the "mirror" reflexion effect
of stray infrared ray interference. This treatment brings the emissivity coefficient to
above 0,1 which ensures correct measurement. An emissivity table gives the
emissivity ranges of a wide range of materials.
To measure a body's temperature, simply point the probe at its surface. The
temperature displayed on the digital screen depends on the measurement
parameter selected and on the emissivity chosen (according to material). The
thermometer automatically switches off after 10 seconds.

2 FUNCTIONING - EMISSIVITY

All objects above absolute zero (-273.15° C) give ou t infrared energy. This radiated
energy is emitted in all directions at the speed of light.
The instrument's lens picks up this energy and focuses it on an infrared detector.
This detector gives a voltage signal proportional to the quantity of energy received
and hence proportional to the temperature of the object.
C.A 1864 - C.A 1866 18