Proximity Switches

 
Sai Control System has been manufacturing the wide range of high quality proximity switches over two decades. These are used in all areas of control & automation such as machine tools, packaging, injection molding, automboile industries, process industries, textile industries, pharmaceutical, forging and other automated systems.

Advantages

Non Contact Operation
 No Operating Force Require
Bounce free Operation
Corrosion Resistance
High Operating Frequency
Vibration Resistance
IP67 Grade of Protection
High Repeat Accuracy
Suitable for intrinsically safe operation in hazardous area.
Long Life


Operating Temperature
Operating Temperature fo Proximity Switches is 0 to 55° C & Temperature up to 100° C can be manufactured on request.

Protections
AC Proximity Switches are protected against transient and surges. DC switches are protected against short circuit and reverse polarity.

Mounting
 
Inductive Proximity Switches
 
Switching Hysteresis
This is the difference between Switch ON and Switch OFF point of the switch. This is adjusted within 5% to 15% of the specified sensing distance.
 
Output Connections
3 Wire / 4 wire DC
 
3 Wire DC PNP Output
3 Wire DC NPN Output
4 Wire DC PNP Double Output
     
3 Wire DC PNP Output
3 Wire DC NPN Output
4 Wire DC PNP Double Output
     
3 Wire DC NPN Output
2 Wire No/Nc Output
3 Wire AC Switch Complementary O/P
     
3 Wire DC NPN Output
2 Wire No/Nc Output
3 Wire AC Switch Complementary O/P
 
 
Types of Proximity Switches
 
Type
Sensing Principle
Features
Application
Inductive
Damping of Oscillations of Conductive Material
Senses only metallic objects
Machine Tools Automation Material Handling position Sensing
Capacitive
Senses Dielectric Properties of object material
Senses Metallic, Non Metallic, Liquid
Food, Pharmaceuticals, Plastic
Optical
Infra Red Reflection
Senses any object with longer sensing distance
Foundry, Automobile, Pharmaceuticals, Plastics, Position Level Sensing
Magnetic
Magnetic Reluctance Reed Switch
Senses only ferrous magnetic materials
Automation Pneumatic Hydraulic Cylinders
 

Constructions

The proximity Switches are available in tubular enclosures with Diameter 4 mm to 80 mm and square shapes. The enclosure are made of stainless steel, nickel plated brass tube or engineering plasitcs.

 
Ordering Information