Portable Thermometers
User Guide
Cyclops L
6 - 2
Fig. 6-2
Cyclops 055L
thermometer field of view
6.3 Neutral Density Filter
Some
Cyclops
instruments, designated suffix
-2F
, are fitted with an additional,
internal, neutral density filter within the visual sighting system. This will not
affect the brightness or clarity of the internal (viewfinder) temperature display,
but does provide some additional eye comfort when viewing high temperature
targets.
6.4 Lens protection window
The
Cyclops
is supplied, as standard, with a protective window which covers
and protects the instrument lens.
WARNING
Never look at the sun through this instrument - this could cause
severe damage to the eye.
6.2 Target Size Calculation for fixed focus instrument Cyclops 055L
The
Cyclops 055L
has a precision reflex optical system, which provides
‘Through The Lens’ sighting and gives precise definition of the target spot. The
focus is fixed at 5 metres.
Field of View
The precision reflex optical system gives a narrow field of view from the front of
the instrument to 5000 mm (Fig. 6-2).
Target distance (D) from optical datum
Optical
datum
Field of view
Beam diameter: nominally
28mm from front of
instrument to 5 metres
