
PHOTOSWITCHR Photoelectric Sensors
1–129
Description
The
42BC photoelectric sensor of
fers
high performance background
suppression performance at sensing
ranges up to 2m (6.6ft). This type of
sensing capability is desirable in
applications where standard transmitted
beam or retroreflective sensing is not
practical due to no easy access to both
sides of the target or when economics
is a major factor
.
The 42BC photoelectric sensor uses a
triangulation method to mechanically
adjust the sensing angle, thereby,
ensuring reliable detection of the target
while ignoring the background. Using
the sensitivity adjustment on the top
cover, the desired sensing range can
be dialed in to meet the specific
application.
The 42BC is available in either a 1m
(3.3ft) or 2m (6.6ft) sensing range. For
applications where the sensing
distances are much shorter use of the
RightSight background suppression
sensor is recommended. These
sensors of
fer a fixed 50mm (2in) and
100mm (4in) sensing range. Similar
long range sensing distances may be
solved with the 42BT photoelectric
sensor also. This sensor provides a
smaller package style for space critical
installations.
General Specifications
Features
•Long range background suppression
diffuse sensing mode
•Adjustable range settings
•
Slim housing style
•
Highly visible LED Indicators
•
Screw terminal connections
•
Both NPN and PNP outputs (DC)
•
SPST relay output (AC)
•
Short-circuit protected outputs
General Information
Wiring
Diagrams
page 1–130.
. . . . . . . .
Dimensions page 1–130
. . . . . . . . . . . . .
Sensing Modes
Background Suppression page 1–131.
Accessories
Quick-Disconnect Cables page 5–1
. . .
Mounting Assemblies page 1–301
. . . .
Replacement Cover page 1–305
. . . . . .
42BC
Long Range Background Suppression
Unit Protection
Supply voltage
Current Consumption
Output Type
Output Mode
Output Rating
Response Time
Housing Material
Lens Material
LED Indicators
Connection Types
Supplied Accessories
Optional Accessories
Operating Environment
Vibration
Shock
Operating Temperature
Relative Humidity
Approvals
Output short circuit (SS version only), reverse polarity, false pulse,
transient noise
12–24V DC
30mA maximum
NPN and PNP (DC version)
SPST N.O. relay (AC version)
Light/dark operate selectable
100mA@24V DC
3A@240V AC
20ms maximum (DC version)
30ms maximum (AC version)
Polycarbonate
Acrylic
See User Interface on page 1–130
Screw terminal, 16 AWG (1.3mm2)
Right angle mounting bracket
Cordsets, mounting brackets—see Section 5
NEMA 1, 12, 13 IP65 (IEC529)
10–55Hz, 1mm amplitude, Meets or exceeds IEC 60947–5–2
30g with 1ms pulse duration, Meets or exceeds IEC 60947–5–2
–25_C to +55_C (–13_F to +131_F)
5…85%
UL listed, CSA certified, and CE marked for all applicable directives