System introduction, 2 applications and limitations – Banner EZ-SCREEN Safety Light Curtain Systems User Manual
Page 6
page
6
Banner Engineering Corp.
•
Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
System Introduction
EZ-SCREEN Grid
Instruction Manual
1.2 Applications and Limitations
The Banner EZ-SCREEN Grid System is designed for use in access-guarding and
perimeter-guarding applications. It is designed to be mounted vertically, in order
to detect a body or torso (rather than a hand or an arm) as a person enters a
hazardous area. It is not intended nor designed for hand or finger detection in
point-of-operation guarding or for area-guarding applications.
In perimeter-guarding and access-guarding applications, the light grid is vertical
or nearly vertical. In these applications, personnel typically can pass through the
light grid (which removes or stops the hazard), then may continue into the
hazardous area.
A recommended set of beam placement positions has become accepted in the
United States and Europe. The standards (ANSI/RIA R15.06, ANSI B11 and
EN 999) recommend a safe beam placement, in order to hinder personnel from
crawling over, under or through the light grid, and into the hazardous area,
without detection. For more information, refer to Section 3.3.1.
WARNING . . .
Not for Point-of-
Operation or Area
Guarding
Do not use the EZ-SCREEN Grid
System for point-of-operation or
non-vertical area guarding.
!
CAUTION . . .
Proper Model
Selection
Ensure proper
selection of emitter models,
with respect to range (operating
distance) between emitter and
receiver, to minimize the
possibility of optical short circuits
(see Sections 2.1 and 3.3.4).
!
Figure 1-2. EZ-SCREEN perimeter-guarding application
Figure 1-3. Selecting the proper
emitter
Emitter
Receiver
0.8 to 20 m
(2.6' to 65')
Emitter
Receiver
15 to 70 m
(49' to 230')
Short-Range
Emitters
Long-Range
Emitters
Emitter
Receiver
Mirror #1
Mirror #2