LINK Systems Max Presence Sensing Device - Manual (Page 10)

Link Lite Black Max Section 3 - Installation
3-5
When no stopping performance monitor is
used on a machine (you must use one when
required by OSHA or ANSI standards) and
there is no statutory or standards require-
ment to use a stopping performance
monitor, a stop time measurement device
can be used to measure T
s
. These are
portable devices that usually attach to the
moving slide of the machine to detect when
the slide is stopped after another mecha-
nism of the device gives a stop signal.
3.4 Mounting Considerations and
Requirements
Any installation of Link Lite Black Max
light curtains as a safety component of a
production or other system must include
determination of mounting locations and
orientations of the components of the
Black Max(s) that meet both the safety and
operational requirements of the production
system. General mounting requirements of
various Black Max components are
provided in the following subsections. Any
special requirements must be determined
by the user/employer and must not violate
the general requirements.
3.4.1 Black Max Main Transmitter and
Receiver Units.
All Black Max installations will have main
transmitter and receiver units that must be
located and oriented to create a primary
sensing field whose function is to detect a
person's hand or other body part and to
provide a stop signal to the machine
control to prevent or stop hazardous
machine action(s) when the hand or other
body part is detected. The main Link Lite
Black Max transmitter and receiver units
may be mounted vertically, horizontally, or
at an angle as long as the following general
requirements are met.
1. Any location and orientation of the
main Black Max transmitter and receiver
units must place the sensing field at a
distance from the hazard greater than or
equal to the safety distance required in
section 3.3 of this manual, i.e. so, that
hands or fingers are D
s
from the hazard
when the sensing field is interrupted by any
part of the body.
2. Locate the main Black Max transmitter
and receiver units at the same height and
orient at the same angle. The numbers
beside the acrylic lens on the front of the
transmitter unit and the receiver unit
designate the transmitter and sensor
channels. Each transmitter channel number
must be directly across from each similarly
numbered receiver channel. See Figures
3.3.a and 3.3b.
Figure 3.3a: Front view of transmitter and
receiver units mounted at a common height.
Figure 3.3b: Top view of transmitter and
receiver units.