Test Piece Model
Resolution
Depth Penetration Factor for U.S.
Applications
Factor "C" for European
Applications
STP-13
14 mm
24 mm (1 in)
0 mm
STP-2
19 mm
41 mm (1.6 in)
40 mm (1.6 in)
STP-16
25 mm
61 mm (2.5 in)
88 mm (3.5 in)
STP-14
30 mm
78 mm (3 in)
128 mm (5 in)
STP-4
32 mm
85 mm (3.3 in)
144 mm (5.7 in)
STP-17
34 mm
92 mm (3.6 in)
160 mm (6.3 in)
STP-1
38 mm
106 mm (4.2 in)
192 mm (7.6 in)
STP-3
45 mm
129 mm (5 in)
850 mm (33.5 in)
STP-8
51 mm
150 mm (5.9 in)
850 mm (33.5 in)
STP-5
58 mm
173 mm (6.8 in)
850 mm (33.5 in)
STP-15
60 mm
180 mm (7 in)
850 mm (33.5 in)
STP-12
62 mm
187 mm (7.4 in)
850 mm (33.5 in)
5.1.7 Use of Corner Mirrors
EZ-SCREEN LS Basic may be used with one or more corner mirrors. Mirrors are not allowed for applications that would allow
undetected personnel access into the safeguarded area. The use of glass-surface corner mirrors reduces the maximum
specified emitter/receiver separation by approximately 8 percent per mirror, as follows:
Light Screen Maximum Range
Light Screen Series
0 Mirrors
1 Mirror
2 Mirrors
3 Mirrors
4 Mirrors
14 mm EZ-SCREEN
®
(SLS)
6 m (20 ft)
5.6 m (18.4 ft)
5.2 m (17.0 ft)
4.8 m (15.7 ft)
4.4 m (14.5 ft)
30 mm EZ-SCREEN
®
(SLS)
18 m (60 ft)
16.8 m (55 ft)
15.5 m (51 ft)
14.3 m (47 ft)
13.1 m (43 ft)
EZ-SCREEN
®
LP (SLP)
7 m (23 ft)
6.5 m (21.2 ft)
6.0 m (19.5 ft)
5.5 m (18.0 ft)
5.1 m (16.6 ft)
EZ-SCREEN
®
LP Basic (SLPVA)
4 m (13 ft)
3.7 m (12.1 ft)
3.4 m (11.2 ft)
3.1 ft m (10.3 ft)
2.8 m (9.2 ft)
EZ-SCREEN
®
LS (SLL)
12 m (39 ft)
11 m (36 ft)
10.1 m (33 ft)
9.3 m (30.5 ft)
8.6 m (28 ft)
EZ-SCREEN
®
LS Basic (SLLV)
8 m (26.2 ft)
7.4 m (24.3 ft)
6.8 m (22.3 ft)
6.2 m (20.3 ft)
5.7 m (18.7 ft)
EZ-SCREEN
®
Type 2 (LS2)
15 m (50 ft)
13.8 m (45 ft)
12.7 m (42 ft)
11.7 m (38 ft)
10.8 m (35 ft)
See the specific mirror datasheet or
If mirrors are used, the difference between the angle of incidence from the emitter to the mirror and from the mirror to the
receiver must be between 45° and 120° (see
on page 29). If placed at a sharper angle, an object in the light
screen may deflect beam(s) to the receiver, preventing the object from being detected, also know as false proxing. Angles
greater than 120° result in difficult alignment and possible optical short circuits.
WARNING:
•
Retroreflective Mode Installation
•
Failure to follow these instructions may create unreliable sensing and may result in serious injury
or death.
•
Do not install emitters and receivers in retroreflective mode with less than a 45° angle of
incidence. Install emitters and receivers at an appropriate angle.
EZ-SCREEN
®
LS Basic Safety Light Curtain
28
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