PHOTOSWITCH
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Installation Instructions
Bulletin 42KA Subminiature Flat Pack
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 500s 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 -- 1 3 Fto131F(--25Cto+55C)
Lens Material Polycarbonate, except 42KA--T2KNTK-- A2.
Housing Material Polyester
Operating
Environment
Approvals UL listed, CSA certified, class 2 source required,
Weight 40 grams max (1.4oz)
42KA--T2KPTK--A2, 42KA--S2JPSA--A2 and
42KA--S2JNSA --A2 have vinyl chloride lenses
NEMA 1 and IP40
CE marked for applicable directives
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
Cable
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
Cable
Brown: 24V DC (Transmitted Beam)
12-- 24V DC (All Other Models)
Black: Output
Blue: --DC
Brown: 24V DC (Transmitted Beam)
Load
12-- 24V DC (All Other Models)
Dimensions—mm (inches)
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)
(0.157)
1.3
(0.051)
Optical
Axis
18
(0.708)
2
(0.078)
Receiver Light Source
4
4.5
(0.177)
Photo
Detector
12.5
(0.492)
Dia. 2.8
(0.110)
Indicators (Red = Output,
Green = Stability)
2.5
(0.098)
3.5
(0.137)
11
(0.433)
Dia. 2.3
(0.090)
2Places
3.5
(0.137)
Dia. 2.3
(0.090)
2Places
2.5
(0.098)
11
(0.433)
12.5
(0.492)
Dia. 2.8
(0.110)
(0.157)
4.5
(0.177)
Light
Source
4
Black: Output
Blue: --DC
18
(0.0708)
2
(0.078)
Optical
Axis
3.5
(0.138)
Load
1.2
(0.047)
1.5
(0.059)
Dia. 3.8
(0.149)
1
Dimensions—mm (inches) (continued)
Catalog Number:
42KA--T2KNTK --A2
42KA--T2KPSK--A2
42KA--T2KPTK--A2
Photo
Detector
Optical
Axis
6.8
(0.268)
7
(0.275)
13
(0.511)
2.9
(0.114)
7.8
(0.307)
9
(0.354)
Indicators (Red = Output,
Green = Stability)
2
(0.078)
Dia. 3.2
(0.125)
Optical
Axis
Light
Source
6.8
(0.268)
7
(0.275)
13
(0.511
)
2.9
(0.114)
7.8
(0.307)
9
(0.354)
Dia. 3.2
(0.125)
Catalog Number:
42KA--D2JNHA--A2
42KA--D2JPHA --A2
42KA--D2JNFA--A2
42KA--D2JPFA--A2
42KA--D2JNHC--A2
42KA--D2JNFC --A2
42KA--D2JPHC --A2
42KA--D2JPFC --A2
Catalog Number:
42KA--S2JNSA --A2
42KA--S2JPSA--A2
3.5
(0.137)
(0.461)
2
2.3
(0.090)
Receiver Light Source
3.5
(0.137)
0.5
(0.019)
1.2
(0.047)
1.5
0.059
Dia. 3.8
(0.149)
2
(0.078)
6.75
(0.265)
20
11.7
(0.787)
3.5
(0.137)
(0.078)
Dia. 2.8
(0.110)
Indicators
(Red = Output,
Green = Stability)
7
(0.275)
Light Source
1.3
(0.051)
(0.708)
and Photo
Detector
4.8
(0.188)
18
2
(0.078)
4.5
(0.177)
Light Source and
Photo Detector
2.3
(0.091)
2.5
(0.098)
14
(0.551)
2.9
(0.114)
19.5
(0.767)
9
(0.354)
3.5
(0.137)
3.6
(0.141)
Dia. 2.8
(0.110)
(0.177)
4.5
Dia. 2.9
(0.144)
2.3
(0.090)
2.5
(0.098)
3.5
(0.1337)
11
(0.433)
Dia. 2.3
(0.090)
2Places
Indicators
(Red = Output,
Green = Stability)
2
(0.078)
Dia. 2.8
(0.110)
Sensitivity Adjustment for:
42KA--T2KNFK --A2
42KA--T2KPSK--A2
42KA--D2JNFC --A2
42KA--S2JNSA --A2
42KA--T2KPFK--A2
42KA--D2JPFC --A2
42KA--S2JPSA--A2
42KA--D2JNFA--A2
42KA--D2JPFA--A2
Optical
Axis
(0.078)
(0.078)
300
(11.811
)
16
(0.629)
5
(0.196)
2
2
Sensor
Dia. 2.8
(0.110)
Sensitivity Adjustment
5
(0.196)
9
(0.354)
Potentiometer
Dia. 2.8
(0.110)
2
Standard Diffuse Sharp Cutoff Diffuse Transmitted Beam
Field of View 42KA- D2JNHA- A2:30
Transmitting LED Visible red 660nm Visible red 660nm Visible red, 660nm
Connections
1:1 Margin
3cm (1.18in)
5cm (1.96in) 42KA- D2JNHC- A2
42KA- D2JPHA- A2:30
42KA- D2JNFA- A2:30
42KA- D2JPFA- A2:30
42KA- D2JNHC- A2:18
42KA- D2JNFC- A2:18
42KA- D2JPHC- A2:18
42KA- D2JPFC- A2:18
3-conductor 500V PVC
jacketedcable6.5ft(2m)
42KA- D2JNHA- A2
42KA- D2JPHA- A2
42KA- D2JNFA- A2
42KA- D2JPFA- A2
42KA- D2JNFC- A2
42KA- D2JPHC- A2
42KA- D2JPFC- A2
18
3-conductor 500V PVC
jacketedcable6.5ft(2m)
0.5cm--3cm (0.19in--1.18in) 50cm (19.68in)
42KA--T2KNHK: 40
42KA--T2KPHK: 40
42KA--T2KNTK: 50
42KA--T2KPTK: 50
42KA--T2KNFK: 50
42KA--T2KPFK: 50
42KA--T2KPSK: 50
Source:
2-conductor 500V PVC
jacketed cable 6.5ft (2m)
Receiver:
3-conductor 500V PVC
jacketed cable 6.5ft (2m)
Standard Diffuse
Output Characteristics Catalog Number
Operating
Vol tage
12--24V DC
10%
Supply
Current
20mA
27mA
Output
Energized
Light
Typ e
NPN
PNP
NPN
PNP
Max Load
Current
80mA 0.5mA 0.5ms
Max Leakage
Current
Response
Time
Size Cable
3.5mm x 18mm
x19.5mm
42KA- D2JNHA- A2
42KA- D2JNHC- A2
42KA- D2JPHA- A2
42KA- D2JPHC- A2
42KA- D2JNFA- A2
42KA- D2JNFC- A2
42KA- D2JPFA- A2
42KA- D2JPFC- A2
Sharp Cutoff Diffuse
Operating
Vol tage
12--24V DC 10% 27mA Light
Supply
Current
Transmitted Beam
Operating
Vol tage
24V DC 10%
Includes sensitivity adjustment
Supply
Current
Source: 15mA
Receiver: 15mA
Source: 15mA
Receiver: 15mA
Source: 15mA
Receiver: 22mA
Output
Energized
Dark
Output
Energized
Output Characteristics
Catalog Number
Max
Max Load
Typ e
NPN
PNP
Current
80mA 0.5mA 0.5ms
Output Characteristics
Max
Load
Typ e
NPN
PNP 42KA- T2KPHK- A2
NPN
PNP 42KA- T2KPTK- A2
PNP
NPN
PNP
Current
80mA 0.5mA 0.5ms
Leakage
Current
Max
Leakage
Current
Response
Time
Response
Time
Size
7mm x 9mm
x20mm
Size
3.5mm x 12.5mm x 18mm
7mm x 9mm x 13mm
3.5mm x 12.5mm x 18mm
Cable
42KA- S2JNSA- A2
42KA- S2JPSA- A2
Catalog Number
Cable
42KA- T2KNHK- A2
42KA- T2KNTK- A2
42KA- T2KPSK- A2
42KA- T2KNFK- A2
42KA- T2KPFK- A2
3
Response Curves—mm (inches)
B
Di
Standard Diffuse: 30mm
100
Beam Patterns—mm (inches)
Standard Diffuse: 30mm
20
10
10
Operating Margin
1
0.0 5
(0.2)
10
(0.4)
Standard Diffuse: 50mm
100
10
Operating Margin
1
0.0 13
(0.5)
Sharp Cutoff Diffuse
100
15
(0.6)
Operating Distance
25
(1.0)
Operating Distance
20
(0.8)
38
(1.5)
25
(1.0)
30
(1.2)
51
(2.0)
0.0
-- 1 0
Beam Diameter
-- 2 0
0.0 5
(0.2)
10
(0.4)
Standard Diffuse: 50mm
15
10
5
0
-- 5
Beam Diameter
-- 1 0
-- 1 5
0.0 13
(0.5)
Sharp Cutoff Diffuse
10
15
(0.6)
Distance
25
(1.0)
Distance
20
(0.8)
38
(1.5)
25
(1.0)
30
(1.2)
51
(2.0)
10
Operating Margin
1
0 10
Transmitted Beam
10000
1000
100
254
Operating Margin
25,4
2.54
(0.10)
(0.39)
Operating Distance
25
(1)
Operating Distance
20
(0.78)
254
(10)
30
(1.18)
2540
(100)
5
ameter
0
eam
-- 5
-- 1 0
0.0 5
(0.2)
Transmitted Beam
102
51
0
-- 5 1
Beam Diameter
--102
051
102
(2)
(4)
152
(6)
10
(0.4)
203
(8)
15
(0.6)
Distance
254
(10)
Distance
305
(12)
20
(0.8)
356
(14)
406
(16)
25
(1.0)
457
(18)
30
(1.2)
508
(20)
Publication 75009--057--01(F)
May 1998
PrintedinJapan
4
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