Inductive Proximity switch produces high frequency alternating field at the sensing face. When any metallic material enters in the sensing zone of the switch, the field gets disturbed. A Sensitive detector circuit senses this change which is further processed by amplifier circuit to produce output signal.

When the object enters in the sensing zone of the switch, capacitance between two plates of capacitor (one plate is represented by electrode at sensing .face of the switch and another by all surrounding material which is connected to the earth) changes. As soon as capacitance value crosses preset level, oscillator starts. This change is detected and resulted in an output signal.

Salient Features

Non contact operation
Potential free contacts suitable for 24 VDC / 240 VAC.
High operating distance up to 25 mm.
Totally enclosed - Robust - cast Al / Plastic enclosure for switch as well as magnet. IP 67.
A Special stay-put type of switch is developed which can be used to sense direction.
Operating Temp up to 0-120 'C

Beam of invisible pulsed modulated infra-red light is produced by emitter. This beam is sensed by receiver at another end (in through beam version) or reflected by object and received by received placed near emitter (in diffuse version). When this beam is interrupted by object, the receiver signal gets changed and signal is produced.

Ultrasonic sensors measure the distance or presence of target objects by sending a pulsed ultrasound wave at the object and then measuring the time for the sound echo to return. Knowing the speed of sound, the sensor can determine the distance of the object.

Most rugged, reliable and dependable range of safety switches, conveyor safety switches, electronic switches, electronic conveyor switches etc. A must for every conveyor and material handling plant. Thousands of switches are in use at cement, fertilizer, steel, mining and power plants. Specially developed field mounting enclosures with added safety features.

We are liquid level switches manufacturer providing Level Management Solutions from simple, single point, low cost level sensors, liquid level switches, cable end float switches to specialized & complex level monitoring solutions for conducting & non conducting liquids, granules, powders and heavy solids.

Protocontrol offers field sensors. We also bridge gap between field sensors and control room by offering variety of signal conditioning modules. These modules provide effective isolation, improve signal communication and hence improve plant performance. Fill the gap between sensors to control room by Protocontrol make signal conditioning modules.

Description / Specification of Indicating And Controlling Instruments

We are involved in offering a wide range of Indicating And Controlling Instruments to our most valued clients. Our range of these are widely appreciated by our clients which are situated all round the nation. We offer our range of it at most affordable prices.

We introduce ourselves as an eminent trader and supplier of an extensive array of  Indicating And Controlling Instruments. Prior to dispatch, our quality controllers run numerous tests on the entire range on various parameters of quality and durability. The offered equipment is manufactured using superior quality components with the aid of sophisticated techniques at the vendors' end. Moreover, our precious clients can purchase it in different technical specifications at reasonable price from us within promised time frame.
Features:

Sturdy design
Highly durable
Application specific design 

We believe in offering solution which will serve you best. We have specialized products to offer from our principles. Please talk to our application specialist with your requirement.