Eltra Encoder Incremental Rotary Encoder


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Incremental encoder


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Incremental encoder


Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.


Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental hollow shaft encoder

ELTRA EF36K4L1024Z5L8X3PR0,55
Series with incremental outputs and hollow shaft.
Motor Series.


Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Price on Request
One click request

Incremental encoder

Blind hollow shaft incremental encoder with rear fixing.

Incremental rotary encoder EltraEltra incremental encoder is a sensor that tracks the position and movement of a detail in space by using special pulses. In this type of sensors, before starting work it is necessary to set the initial position also known as zero-point.

Incremental encoder working principle

The incremental encoder uses two types of square waves as outputting signal, also called channel A and channel B.

In first type, rotary encoder signal provides information only about the speed of rotation of the detail, which is measured in the number of pulses in a determined unit of time.

In the second case, the channel provides data on the direction of rotation in accordance with a sequence created by two signals.

There is still a third type of signal, called the zero channel, also available and used as a reference point.

Structure of incremental rotary shaft encoder

By the principle of work, incremental encoders are divided into optical and magnetic.

In the first case, the reading of the pulses from the infrared LED goes through photodiodes or phototransistors. Between them, there is a special code rotary encoder wheel. The light projects the position of the marks on the disc onto the surface of the receivers. That device handles disc movement, changes and converts them into special code.

In magnetic shaft encoder, reading of detail position is performed by using a drive with a special magnet. Sensor detects the passage of magnetic poles and converts changes in the electric field into a digital code or signal.

Eltra incremental rotary encoder types

Today on the market, there are a huge number of models of this type, which manufactured by company. Eltra incremental encoders are segregated into three main categories:

Optical Solid Shaft incremental encoder Eltra. Coupling in these models occurs using a solid shaft.

  •  EL-ER 30 E/H ;
  •  EH 38 A/B/D ;
  •  EL-ER 40A/B/C/H/I/X/N ;
  •  EL-ER 58 B/C/H/T ;
  •  EL-ER 63 A/D/E ;
  •  EX 80 A/D ;
  •  EH 90A-115 A/R ;
  •  EL-ER 90A-115A.

Optical hollow shaft incremental encoder Eltra. The blind hollow shaft is used here as the encoder coupler.

  •  EH 17-30 M ;
  •  EH 17-30 MH ;
  •  EF 36 K ;
  •  EM-ER 36 F/G ;
  •  EL 48 C/P ;
  •  EL 49 C/P ;
  •  EF 49 C/P ;
  •  EH 50 FA/FP ;
  •  EH 53 A/B ;
  •  EL-ER 58F/G-63 F/G ;
  •  EL 63 GB/FB/PB/PBF/PC/PCF ;
  •  EL-ER 72 A/B ;
  •  EH 80 C/K/P/PG ;
  •  EF 80 C/P ;
  •  EH-EL 88 P ;
  •  EH 88 PE/PET ;
  •  EL 120.

Magnetic incremental encoder Eltra. Magnetic rotary encoder series:

  •  EMI 22 A ;
  •  EMI 30 M ;
  •  EMI 38 F/G ;
  •  EMI 40 A ;
  •  EMI 55 A/AY ;
  •  EMI 63 A/D ;
  •  ETMR.

Large numbers of models manufactured by producer allows client to select the most optimal sensor.

Encoder interface

Electrical interface is a method of transmitting data to a special receiver. It performed by using digital or analogue signals. Transmission coming on intelligent devices such as an interface board, PLC or some other appliances.

The interface depends on the type of sensor. Absolute and incremental encoders have their own types. Rotary position sensors created by company have four own kinds of electrical interfaces:

  1.  NPN.
  2.  NPN open collector.
  3.  Push pull.
  4.  Line driver.

Producer created each of them for specific options and you can find necessary type in the characteristics of the model.
On the eltra-trade.com, you will find the full catalog of incremental sensors. Our store is the official Eltra encoder distributor, therefore our clients can buy incremental encoder at the best price.

The most popular of Incremental Rotary Eltra Encoders:
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in international format without spaces