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Inductive Ring Sensors from Veederline

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article image Inductive Ring Sensors

In ring sensors, sensing is made within the ring itself. The sensor is activated when a metallic object is introduced within it.

Application / function:

General characteristics 

Ring sensors are particularly suitable for applications where detection of small metal objects such as screws, nuts, washers etc is requested and also for break detection of continuous metal wires that pass through it.

The sensor’s housing is made of plastic and the electrical attachments are available by means of a cable or M8 and M12 connectors depending on the models.

They are supplied with fixed timing impulse (100mS) insertable by means of an ON/OFF switch that makes them suitable for detection of fast moving small metal objects.

They are available with internal diameter of 5- 12-15-22-25-30-44-63-100 mm and supplied with NPN or PNP output, sensibility regulation, insertion/disinsertion of impulse retention time and LED state of condition.

All ring sensors have antivalent output (NO+NC) accept for the types with H1 connectors.

Differentiate features:

Selection of ring sensor

Selection should be made based on the minimum hole diameter required. In this way the sensitivity adjustment can be made within normal parameters and need not be pushed to the maximum risking the proper functioning of the unit.

Use with a delayed amplifiers

All types of ring sensor can work in combination with a delayed amplifier of the programmable ALTP series which ensures the sensing of small objects in rapid movement.

Sensitivity adjustment

After having followed the instructions regarding to the choice of the most suitable unit it is recommended that the sensitivity adjustment be carried out when the sensor is installed in the final position taking into account how much metal mass is close by which could alter its functioning. The sensitivity increases turning the trimmer clockwise and reduces by turning it anti-clockwise.

Effects of metal in the close vicinity

If a moving metal part is close to the sensing area the functioning can be disturbed. In order to avoid this, install the units some distance from metallic objects. Ensure that this does not interfere with the functioning.

Use of sensor

A distance equal to the width of the sensor should be left between each object that passes through the sensor. If more than one sensor is to be installed in close vicinity, the minimum distance indicated between sensors should be observed. 

Inductive Ring Sensors are available from Veederline.

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