PCE Instruments PCE-320, Instruction Manual, Page: 5 / 14

Distance & Spot Size
As the distance (O) from the object increases,
the spot size (S) of the area measured by the
unit becomes larger. The relationship
between distance and spot size for each unit
is listed below. The focal point for each unit is
914mm (36"). The spot sizes indicate 90%
encircled energy.
Fig: 1
MODEL:
PCE-320
Distance(D) to Spot Size(S)
50@ 1500
mm
Sensor Beam
l
J � :;;:�t�=:t = ::;t=l;===:::::;t=i •
�=:::�g�,= 0.4@12
5
1·2
@
35
2.0@60
16mm
_____
D
lnch Laser Beam
1
5