Rockwell Automation 42KA Subminiature Flat Pack PHOTOSWITCH - Manual

1
Installation Instructions
PHOTOSWITCH

Bulletin 42KA Subminiature Flat Pack
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Description
Extremely small Bulletin 42KA self contained Subminiature
Flat Pack photoelectric sensors are useful in short range
sensing applications where compact size is a primary
concern. Their fast 500s response time and compact size
make them a practical, lower-cost alternative to separate
sensors and fiber optic cables in many applications.
Most Bulletin 42KA photoelectric sensors are available with or
without a sensitivity adjustment. Models without a sensitivity
adjustment are useful in applications where maximum range is
always required. Adjustable models feature a unique cable
mounted sensitivity adjustment to allow for the smallest
possible sensor size.
Each Bulletin 42KA comes complete with mounting hardware.
General Specifications
Relative Humidity 85% max
Ambient Temperature --13F to 131F (--25C to +55C)
Lens Material Polycarbonate, except 42KA--T2KNTK--A2.
42KA--T2KPTK--A2, 42KA--S2JPSA--A2 and
42KA--S2JNSA--A2 have vinyl chloride lenses
Housing Material Polyester
Operating
Environment
NEMA 1 and IP40
Approvals UL listed, CSA certified, class 2 source required,
CE marked for applicable directives
Weight 40 grams max (1.4oz)
Dimensions—mm (inches)
Features
S Dual LED indicators: output energized (red), alignment
(green)
S Models with in-line sensitivity adjustment potentiometer
S Reverse polarity protection (Standard Diffuse units without
sensitivity adjustment only: 42KA--D2JNHC--A2,
42KA--D2JNHA--A2, 42KA--D2JPHC--A2,
42KA--D2JPHA--A2)
S Transient noise protection
Wiring
NPN Output
Black: Output
Blue: --DC
Brown: 24V DC (Transmitted Beam)
12--24V DC (All Other Models)
Cable
Load
Note: Details regarding connection of Allen-Bradley Bulletin 42KA Photoelectric
sensors to Allen-Bradley programmable controllers can be found in
Publication 42BCFK--70.
PNP Output
Black: Output
Blue: --DC
Brown: 24V DC (Transmitted Beam)
12--24V DC (All Other Models)
Cable
Load
Optical
Axis
Catalog Number:
42KA--T2KNHK--A2
42KA--T2KNFK--A2
42KA--T2KPHK--A2
42KA--T2KPFK--A2
3.5
(0.138)
1.2
(0.047)
1.5
(0.059)
Dia. 3.8
(0.149)
1.3
(0.051)
4
(0.157)
2.5
(0.098)
3.5
(0.137)
4.5
(0.177)
2
(0.078)
Dia. 2.8
(0.110)
Dia. 2.3
(0.090)
2 Places
3.5
(0.138)
3.5
(0.137)
4.5
(0.177)
18
(0.0708)
Dia. 2.8
(0.110)
2
(0.078)
1.2
(0.047)
1.5
(0.059)
Dia. 3.8
(0.149)
18
(0.708)
12.5
(0.492)
12.5
(0.492)
4
(0.157)
2.5
(0.098)
Dia. 2.3
(0.090)
2 Places
Photo
Detector
Light
Source
Indicators (Red = Output,
Green = Stability)
Receiver Light Source
11
(0.433)
11
(0.433)
Optical
Axis