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Proximity Photoelectric Switch

Photoelectric Switch works on the principle of modulated Infra-Red rays. These photoelectric beam sensors can sense any opaque, semi-transparent objects which comes in its sensing range. Proximity Photoelectric Switches have large operating distance. Photoelectric beam sensors are mainly divided into : Diffused Beam Sensors, Through Beam Sensors with Amplifier Unit, Through Beam Sensors with Built in Amplifier, Retro-Reflective Sensors.


Diffused Beam Sensor (DBT)

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Diffused Beam Sensor
Working Principle
This diffused photoelectric beam sensors consist of a transmitter and a receiver together. These beam sensors look alike Inductive Proximity Sensors and hence also known as IR Proximity Sensors. The emitter emits Infra red rays which are reflected on the receiver through the object to be registered. In the use of these photoelectric beam sensors, it is important to bear in mind the colour of the object. Light colour corresponds to the maximum distance and vice versa. In case of shiny object; the effect of surface of object is more important than the colour.

Advantages
Field of application
These beam sensors are particularly used for position sensing and counting of non metallic objects. It is also used for Bottle sensing, Level sensing, Height sensing Plastic film sensing Edge detection of paper or sheet metal etc.

Specifications
Response Time 5 msec
Switching Frequency 100 Hz
Operating Voltage 10-30 VDC
Maximum Load Current 100 mA
Output NPN or PNP
Maximum Current consumption
@ 24V DC {No Load)
24 mA (OFF)
34 mA (ON)
Voltage Drop 1 V Max
Short Circuit Protection Provided
LED Indicator Provided
Temperature Limit 0-55oC
Cable 2 Mtrs (std.)


Through Beam Sensor with Amplifier Unit (SBT)

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Through Beam Sensor with Amplifier Unit
Working Principle
This through beam photo electric sensors consist of two devices; a light emitter and a light receiver These two devices are kept apart facing each other. The Gallium-Aluminium-Arsenide-Luminescent diode integrated in the transmitter sends pulses of light in the infra-red range which are invisible lo the human eye. The receiver opposite to the transmitter receive these rays. Sensing is achieved when these rays are interrupted by the object.

Advantages
Field of application
Through Beam Sensors are used for sensing semitransparent opaque objects such as Glass/Plastic Bottle, Sliver breakage detection, Paper breakage detection. Door opening/closing etc.

Specifications
Response Time 250 msec
Switching Frequency 2 Hz
Maximum Load Current Not applicable, Output is through Amplifier Box 1 C/o potential free contact of 5A (resistive) @ 230V AC
Maximum Current consumption Transmitter-17 mA,
Receiver -5 mA
Voltage Drop Not applicable
LED Indicator Provided on Amplifier Box
Timer arrangement (Optional) Provided on Amplifier Box
Gain Adjustment Provided on Amplifier Box
Temperature Limit 0 - 55° C
Cable 2 Mtrs (std)


IR Amplifier Unit
Power supply 230VAC/110AC + 10%
Input Through Transmitter & Receiver
Output 1 C/o relay contact or Digital Output
Connection Through connector strip (12 Terminal)
Dimensions 70 x 60 x 110 mm (H x W x D)
Mounting Wall mounting or DIN RAIL mounting


Through Beam Sensor with Built In Amplifier (SBTA)

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Through Beam Sensor with Built In Amplifier (SBTA)
Working Principle
This consist of two devices, a light emitter and a light receiver. The light receiver device contains amplifier circuit which gives transistorised output. These two devices are kept apart facing each other. The transmitter sends pulses of light in the infrared range which are invisible to the human eye. The receiver device opposite to the transmitter receives these rays. On interruption of these rays by the target object, receiver gives a signal which is amplified and fed to output transistor.

Advantages
Field of Application

Specifications
Response Time 5 msec
Switching Frequency 100 Hz
Operating Voltage 10-30 VDC
Maximum Load Current 100 mA
Output NPN or PNP
Maximum Current consumption
@ 24V DC (No Load)
29 mA in OFF state
34 mA in ON state
Voltage Drop 1 V Max
Short Circuit Protection Provided
LED Indicator Provided
Temperature Limit 0-55°C
Cable 2 Mtrs (std.)


Retro-Reflective Sensor (RBI)

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Retro-Reflective Sensor
Working Principle
This is a system which consist of one device and a reflector. The device contains emitter and receiver The rays emitted by the emitter are reflected by the reflector to the receiver. The sensing of the object occurs when these rays are interrupted.

Advantages
Field of Application
This sensors can be used where it is difficult to install Through Beam Sensors due to space constraint. Further, simple wiring makes it suitable where sensing objects are bigger in size. Thus these sensors are used for loop control in decoiler, edge detection in paper/sheet metal etc.

Specifications
Response Time 5 msec
Switching Frequency 100 Hz
Operating Voltage 10-30 VDC
Maximum Load Current 100 mA
Output NPN or PNP
Maximum Current consumption
@ 24V DC (No Load)
25 mA in OFF state
35 mA in ON state
Voltage Drop 1 V Max
Short Circuit Protection Provided
LED Indicator Provided
Temperature Limit 0-55°C
Cable 2 Mtrs (std.)


Photoelectric Sensors ( Block Type )

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Photoelectric Sensors ( Block Type )
These block type sensors are available in Diffused, Through Beam and Retro-Reflective types with sensing range varies from 100 mm to 5 Mtrs. The technical specifications are similar to standard cylindrical sensors but useful when mounting space is a constraint.

TYPE DIMENSION (H X W X D) SENSING RANGE
Diffused Beam 40 X 16 X 54mm 100 / 200 / 300mm
Through Beam 1Mtr  / 2Mtrs / 3Mtrs / 5 Mtrs
Retro-Reflective 1Mtr


Specifications
Response Time 5 msec
Switching Frequency 100 Hz
Operating Voltage 10 - 30 VDC
Maximum Load Current 100 mA
Output NPN or PNP
Maximum Current consumption
@ 24V DC (No Load)
24 mA (OFF)
34 mA (ON)
Voltage Drop 1 V Max
Short Circuit Protection Provided
LED Indicator Provided
Temperature Limit 0 - 55° C
Cable 2 Mtrs (std.)


Compact Photoelectric sensor

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Compact Photoelectric sensor
These compact sensors having short length of only 50mm are available in Diffused, Through Beam and Retro-Reflective types with sensing range varies from 100 mm to 5 Mtrs. The technical specifications are similar to standard cylindrical sensors but useful when mounting space is a constraint.

TECHNICAL CHARACTERISTICS :
Response Time 5 msec
Switching Frequency 100 Hz
Operating Voltage 10 - 30 VDC
Maximum Load Current 100 mA
Output NPN or PNP
Maximum Current consumption
@ 24V DC (No Load)
24 mA (OFF)
34 mA (ON)
Voltage Drop 1 V Max
Short Circuit Protection Provided
LED Indicator Provided
Temperature Limit 0 - 55° C
Cable 2 Mtrs (std.)


TYPE DIMENSION (H X W X D) SENSING RANGE
Diffused Beam M18 X 1 X 50mm 100 / 200 / 300mm
Through Beam M18 X 1 X 50mm 1Mtr / 2Mtrs / 3Mtrs / 5 Mtrs
Retro Reflective M18 X 1 X 50mm 1Mtr

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Fiber Optic Sensor

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Fiber Optic Sensor
Fiber Optic Sensor consist of Fiber optic cable with Amplifier. This is been usedwhere user wants to detect presence of small objects ( opaque / semitransparent ). It is also beneficial where mounting space is the constraint and standardphotoelectric sensors cannot be used. The output from fiber optic amplifier is PNP / NPN transistorized with loadlogic NO ( Light ON ) or NC ( Dark On ) selectable. The fiber optic cable connected to Amplifier can be used in Diffused orThrough Beam mode. The fiber optic amplifier comes in thin 10 mm width housing for mounting on standard 35 mm DIN-rail.

Product Details :
BrandProximon
ConditionNew



TECHNICAL CHARACTERISTICS :
Model DFOAPN
Emitting light Red LED 660nm
Operating voltage DC12~24V + 10%
Current Consumption 45mA Max.
Load Current 100mA Max.
Output type NPN L.on / D.on
PNP L.on / D.on
Protection Circuit Reversed polarity protection, over-current protection
Response Time 1 ms
Indicators Output indicator : Red LED
Sensitivity adjustment 3 Digtals 000-999
Timer Function On Delay, Off Delay, one shot
Delay Time 2ms, 20ms, 50ms, 100ms, 500ms, 1s, 5s, 10s
Operating temperature - 10°C~ + 55°C
Ambient humidity 35% ~ 85% RH
Protection degree IP64
Material ABS
Wiring method Pre-wired Ø4.2 x 2 M/ 4-wires


Fiber Optic Sensor

Fiber Optic Sensor


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PRINT MARK SENSOR

Print mark sensors are used for sensing registration mark on packaging film. These sensors include state-of-the-art technologies for providing precision results. These sensors are used in various industrial segments.

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Print Mark Sensor
Working Principle
This is designed for sensing Registration Marks. It continuously scans the presence of registration mark on the moving packaging film. The electronic circuitry is capable of detecting / scanning any colours on any Background colour. A modulated, Green LED is focused on the moving packaging film. A highly sensitive Photo cell continuously accepts the reflections from the film (paper / plastic) and sends the signals to the electronic scanning circuit. On scanning the presence of Registration Mark; it gives transistorised output.

A Print Mark Sensor is also provided which accepts signals from scanning head & other Proximity Sensors to keep correct pouch / bag length by driving correction motor (110V AC, 4wire) or (230VAC, 3 wire).

Salient Features

Specifications
Supply Voltage 10-30 VDC
Scanning Distance 3 to 8 mm between the scanning head & the film
Output NPN or PNP
Dimensions 90 x 65 x 35 mm (H X W X D )


Print Mark Sensors With Teach – In Function
This is with micro controller based technology, wherein user has to press SCAN key (a feather touch key), keeping White spot light on Mark colour as well as on background colour and within 2-3 sec both colours will get registered in memory. The electronic scanning circuit then differentiate both colours and gives out put on detection of Registration Mark.

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