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Installation Instructions
Bulletin 42CS Stainless Steel Photoelectric Sensors
SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Refer to the product catalog pages for additional information.
Description
The 42CS family of sensors offers a wide range of sensing
modes in a smooth 316L stainless steel housing, designed for
food, beverage and pharmaceutical applications.
The ferromagnetic teach feature makes the sensor easy to
program by simply placing a ferromagnetic metal object on a
section of the sensors housing to initiate the teach process.
The smooth and clean design minimizes the collection and
accumulation of undesired particles and allows for a fast
cleanup.
Features
S Patented ferromagnetic teach for easy sensor
programming
S Extended temperature operating range
S Clean design minimizes the accumulation of undesired
particles allowing for a fast and easy cleanup
S 18 mm stainless steel 316L enclosure with laser etched
markings
S Two teach modes: standard and precision
S Complementary light and dark operate outputs
S Teach lockout feature prevents unauthorized users from
changing the settings
S Clear object detection models available
S Input to disable light source on transmitted beam emitter
S IP69K, ECOLAB and Johnson Diversey rated
Sensor Indicators
LED Status
OFF Teach function is locked
Green
Yellow
Pin 4 of Micro (M12) QD. L.O for diffuse, background suppression. D.O for polarized
retroreflective and transmitted beam
ON Teach function is enabled
Flashing (8 Hz) Short Circuit
OFF
ON
Flashing (3 Hz)
Output de-energized
Output energized
Output energized (Margin < 2)
Specifications
Certifications cULus and CE marked for all applicable directives
Environmental
Operating Environment IP69K, ECOLAB and Johnson Diversey rated
Operating
Temperature [C (F)]
Vibration 10…55Hz, 1 mm amplitude; meets or exceeds IEC
Shock 30 g with 1 ms pulse duration, meets or exceeds IEC
Relative Humidity 5…95% (noncondensing)
Ambient Light Immunity 5000 Lux (Incandescent light) and 100000 Lux
Optical
Sensing Modes
Standard Diffuse
Background
Suppression
Polarized Retroreflective 4 m (13.12 ft) Visible Red
Clear Object Detection 1 m (3.2 ft) Visible red
Transmitted Beam 20 m (65.62 ft) Infrared
Electrical
Voltage 10…30V DC
Current Consumption 35 mA max
Sensor Protection Short circuit, transient noise, reverse polarity
Outputs
Response Time 1 ms (diffuse, polarized retroreflectived, clear object),
Output Type PNP or NPN by cat. no.
Output Mode Complementary light and dark operate
Output Current 100 mA
Output Leakage Current 10 µAmax.
Mechanical
Housing Material Stainless steel 316L
Lens Material PMMA
Connector Material Grilamid
Connection Types 4-pin DC micro (M12) QD
Supplied Accessories Stainless steel teach rod, mounting nuts (threaded
-- 2 5 …+85° (--13…185°)
60947--5--2
60947--5--2
(Sunlight)
Sensing
Range
100 mm
(3.94 in.)
400 mm
(15.75 in.)
800 mm
(31.5 in. )
60…100 mm
(2.36…3.94 in.)
1.25 ms (background suppression),
2 ms (transmitted beam)
models only)
Light Source
Visible Red
(660 nm)
Infrared
(880 nm)
Infrared
(880 nm)
Visible Red
(660 nm)
(660 nm)
(660 nm)
(880 nm)
Spot Size @
max. distance
10 mm @
100 mm
50 mm @
400 mm
120 mm @ 1 m
12 mm @
120 mm
100 mm @
3 mm
50mm@1m
600 mm @
20 m
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Background Suppression Sensors
Target
Application Note
Due to the detection method, targets traveling horizontal to
the sensor’s optics are detected. Targets traveling vertically
may not be accurately detected. For reliable background
suppression, a minimum separation distance of 6 mm is
recommended between the target and the background.
Sensor Alignment
1. Pan the sensor left, right, up, and down to center the beam
on the sensed object (for diffuse), reflector (for polarized
retroreflective) or transmitter (for transmitted beam).
2. Fix the sensor position when the green LED is ON
(flashing) and the yellow output LED is ON (light sensed
and L.O. output energized). This set up assures a good
margin and that the signal received is greater than twice
the signal required to energize the L.O. output. The yellow
LED is on when the L.O. output is conducting.
Mounting the Sensor
Installing sensors on equipment running
IMPORTANT
Securely mount the sensor on a firm, stable surface or
support. A mounting which is subject to excessive vibration or
shock may cause intermittent operation. Mounting brackets
are available for a various installations. See accessories
section for an example.
above the indicated vibration and shock
specification may cause intermittent
operation.
Sensitivity Adjustment Modes
Two types of sensitivity adjustment modes are possible on the
42CS diffuse and polarized retroreflective: Standard Teach
and Precision Teach.
The Standard Teach is recommended for general purpose
detection of opaque targets, large objects or the absence of a
background that could interfere with the teach process. For
this teach process, the threshold levels are set at 50% of the
detected signal.
The Precision Teach is suited for the detection of small
targets or semi transparent objects, where a smaller variation
in gain needs to be sensed. For this teach process, the
threshold levels are set at below the hysteresis levels of the
detected signal.
Diffuse, Polarized Retroreflective and Clear Object
To teach the 42CS using the Standard Teach mode:
1. Place the target within the sensing range.
2. Enter teach mode by placing a ferromagnetic metal object
in the notch until the green LED flashes once. Note that the
green LED flashes while the teach process is active.
3. When the teach process is complete the green LED turns
solid ON. The yellow LED also turns solid ON when the
target is detected with at least twice the minimum amount
of light needed (Margin >= 2) for standard operation. A
flashing yellow LED indicates that the sensor operates with
a margin below the recommended 2X (1 < Margin < 2).
4. The sensor is now ready to operate (yellow LED is on
when the target is present)
To teach the 42CS using the Precision Teach mode:
1. Place the target within the sensing range.
2. Enter teach mode by placing a ferromagnetic metal object
in the notch until the green starts flashing. Note that the
green LED blinks multiple times while the teach process is
active.
3. When the teach process is complete the green LED turns
solid ON. The yellow LED also turns solid ON when the
target is detected with at least twice the minimum amount
of light needed (Margin >= 2) for standard operation. A
flashing yellow LED indicates that the sensor operates with
a margin below the recommended 2X (1 < Margin < 2).
4. The sensor is now ready to operate (yellow LED is on
when the target is present).
Background Suppression
To teach the 42CS background suppression:
1 Place the target within the sensing range.
2 Enter teach mode by placing a ferromagnetic object in the
notch until the green LED starts flashing. Note that the
green LED blinks multiple times while the teach process is
active.
3 When the teach process is complete the green LED turns
solid ON. The yellow LED also turns solid ON when the
target is detected.
4 The sensor is now ready to operate (yellow LED is on
when the target is present).
Teach Lock/Unlock
The 42CS teach is used to prevent unauthorized users from
changing teach settings and avoid interference from any
metal objects that could be in proximity of the teach notch
while in operation.
To lock the sensor:
Place a ferromagnetic metal object in the notch until the
green LED turns OFF. The sensor is now locked.
To unlock the sensor:
Place a ferromagnetic metal object in the notch until the
green LED turns ON. The sensor is now unlocked.
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