Sentry ST 653, Инструкция по эксплуатации

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Emissivity is the ability of an object to emit or
absorb energy. Perfect emitters have an emissivity
of 1, emitting 100% of incident energy. An object
with an emissivity of 0.8 will absorb 80% and reflect
20% of the incident energy. Emissivity is defined as
ratio of the energy radiated by an object at given
temperature to the energy emitted by a perfect
radiator at the same temperature. All values of
emissivity fall between 0.1 and 1.0.
(PS. Please refer to the chart next page.)
5-2 Emissivity
Gun-Type Professional Infrared Thermometer 8
6.Maintenance
Cleaning the lens: Blow off loose particles using
clean compressed air. Gently brush remaining
debris away with a camels hair brush. Carefully
wipe the surface with a moist cotton swab. The
swab may be moistened with water.
NOTE
:
DO NOT use solvents to clean the lens.
Cleaning the housing:
Use soap and water on a damp sponge or soft cloth.
Non-contact temperature sensors measure IR energy
emitted by the target, have fast response, and are
commonly used to measure moving and intermittent
targets, targets in a vacuum, and targets that inaccessible
due to hostile environments, geometry limitations, or
safety hazard. The cost is relatively high, although in
some cases is comparable to contact devices.