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EZ-SCREEN
Type 2 Light Screen
4.3.4 Optical Alignment Procedure with Mirrors
EZ-SCREEN Type 2 sensors may be used with one or more corner mirrors for guarding more than one side of an area. The MSM-... and
SSM-... rear-surface glass mirrors are rated at 85% efficiency. Thus, excess gain and sensing range are reduced when using mirrors; see
Use of Corner Mirrors
on page 16.
During any adjustments, allow only one individual to adjust any one item at any one time.
In addition to the standard optical alignment procedure, verify:
1. The emitter, receiver, and all mirrors are level and plumb.
2. The middle of the defined area and the center point of the mirrors are approximately the same distance from a common reference
point, such as the same height above a level floor.
3. There are equal amounts of mirror surface above and below the defined area such that the optical beams are not passing below or
above the mirror.
Note: A LAT-1-LSLaser Alignment Tool is very helpful by providing a visible red dot along the optical axis. See
28 and Banner Safety Applications Note SA104 (p/n 57477) for further information.
Figure 14. Optical alignment using the LAT-1-LS
4.3.5 Trip Test
After optimizing the optical alignment, perform the trip test to verify the detection capability of the EZ-SCREEN Type 2 System. This test
will also verify correct sensor orientation and identify optical short circuits. Once the installation has passed the trip test, the safety
outputs may be connected and the commissioning checkout may be performed (initial installations only).
1. Use the 30 mm (1.18 in) diameter specified test piece supplied with the receiver .
2. Verify that the System is in Run mode, the Status Clear indicator is ON steady Green (or flashing if reduced resolution is
enabled), all Zone indicators are Green, and the Yellow Status indicator is ON. A manual reset may be required in Latch mode.
3. Pass the specified test piece through the defined area in three paths: near the emitter, near the receiver, and midway between
the emitter and receiver.
4. During each pass, while the test piece is interrupting the defined area, at least one Zone indicator must be Red. The Red Zone
indicator must change with the position of the test piece within the defined area.
28
Component 1 (Emitter)
Emitter
Test Piece
Figure 16. Trip Test
www.bannerengineering.com - Tel: 763.544.3164
Component 2 (Mirror)
Component 4 (Receiver)
Figure 15. Corner Mirror Alignment
Receiver
Figure 14
on page
Component 3 (Mirror)
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