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:: Inductive proximity switches
Reliability and ease of use have made the Inductive Proximity switch the sensor of choice for numerous applications in Automation and Robotics. These switches can detect any metal target and are highly insensitive to harsh industrial environments containing dirt, humidity, dust and oil.
-- DC Three Wire
Dolphin Device provide both AC & DC type Proximity switches of high sensitivity operating distance. All Proximity switches are water and moisture proof as per IP-67 degree on ingress protection.

DC Proximity Switches has three wire available in both PNP and NPN transistor outout. The D.C. Proximity Switches sensing the target 1.5mm to 25 mm can switch ON/OFF D.C. carrying load current max. 200 mA with wide operating voltage 10-35 V D.C.


-- DC Four Wire
Dolphin Device provide D.C. four wire version are called antivalent type Proximity switch including both NO and NC function with operating voltage 10-35 V D.C. carrying max. load current 200mA.



-- DC Two Wire
Dolphin Device also provide D.C. two wire version with an operating voltage 20-100V D.C. with maximum load current 400mA.



-- AC Two Wire
AC proximity switches has two wire contain a thyristor output to drive a load in series. The A.C. proximity switch sensing the target 2 mm to 25 mm can switch ON/OFF AC circuit carrying the load current Max. 500 mA with wide operating voltage 20-25 V A.C.




-- DC NAMUR
We also produce NAMUR Proximity switches use for intrinsic safety application for hazardous area.
NAMUR type proximity switch is in two wire DC version contain only the sensing range circuit & used intrinsic safety application when used in conjunction with PLC or isolating amplifier unit.

-- Special Shape Sensor
} Capactive Proximity Switches
  It is used for sensing all kinds of non metallic material mainly liquid, glass, wood & paper and widely used in printing & liquid application. These are available in AC & DC supply voltage in cylindrical & flat shape.
} NAMUR Type Proximity Switches
  NAMUR type proximity switch is in two wire DC version contain only the sensing range circuit & used intrinsic safety application when used in conjunction with PLC or isolating amplifier unit.
} Flat Type Sensor
  Flat sensor ideally used where space is constraints mainly in machine where space is very small & switch mounted on surface. Available in different shape for wider choice used in different application.
} Plug in Sensor
  Used where cable lying more & shut down time is more for replacing the switch. For such applicationproximity switch with plugin socket is ideal solution, secondly is also eliminate the wiring of wrong connection.
} Ring Type Sensor
  The field is concentrated inside the ring & mainly used where flow meter application & level control required. These switch can sense any ant precise target which goes through the dia of the ring.
} Slot Sensor (U Shape)
  The field is concentrated between opposite sides of slots, mainly used to sense the lever through slot gap & also used for the counting, monitoring operation of both wheels.