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OPKON – Linear & Rotary Potentiometer

OPKON Optic Electronic Ltd. established in 1993 in Istanbul / Turkey by Electronic Engineer Mustafa Kenan Ozeren.

Company philosophy is developing, designing and manufacturing electronic sensors and devices, with European quality, and distribute all over the world.
OPKON Ltd. has all R&D and manufacturing facilities in Istanbul, which has 2500 sq meter production area, 60 technicians and engineers with many years experience. Company is certified with ISO 9001-2008 – ISO 10002-2004

OPKON Production Portfolio :
– Linear Potentiometer
– Standard Series
– Electronic Conditioner Curcuit ( 0-10V,0-20mA,4-20mA) Series
– Slim Body Series
– Ultra Slim Body Series
– Draw Wire Potentiometer
– Contactless Magnetostrictive Position Sensor
– Optic Rotary Incremental Encoder
– Magnetic Rotary Incremental / Absolute Encoder
– Draw Wire Encoder
– Voltage Output, Absolute Encoder
– Magnetic Reader Head, Magnetic Tape
– Press Brake Scale
– Panel Type Measurement And Control Equipment

OPKON production portfolio covers very wide range of industry, such as;
– Plastic / Metal Injection Moulding
– Textile
– Marble / Stone
– Packaging
– Printing
– Wood Processing
– Press Brakes
– Roll Bending
– Metal Cutting / Forming
– Elevator
– Profile and Metal Processing
– Cranes / Lift
– Hydraulic Press
– Medical
– General Automation Applications

OPKON has sales network in 6 continents with 28 countries official distributors.

Company exports to Germany, Italy, Spain, Portugal, Netherland, Greece, Bulgaria and other European community countries, USA, Canada, Brazil, Mexico, Argentina, South Africa, Middle east countries, India, China, Korea, Taiwan, Australia and others.

General 2021 Opkon Catalogue – Linear

General 2021 Opkon Catalogue – Rotary

OPKON Models – kOhm Resistance Chart



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TWK-Inductive Linear Transducers

Inductive Linear Transducers for engineering and instrumentation.

The half-bridge technology for 1 to 360 mm stroke. The wide range of inductive linear transducers includes items with 10, 12 and 25 mm outside diameter and for measuring ranges from 1 to 360 mm. The smaller IW 10 and IW 120 series require external electronic modules for excitation and signal conditioning. IW 250 series with 25 mm housings have integral electronics consisting of oscillator, demodulater and amplifier. Analogue output signals are either 0(4) to 20 mA, 0 to 10 VDC or ± 10 VDC for full range or calibrated strokes. The transducers are completely potted to meet protection grades up to IP 68. Electrical connection is made either by leads, plug and socket or through cable glands. Various mechanical configurations are available to suit specific mounting conditions.

The IW 260 displacement transducers operate according to the new principle of fractional inductivity allotment within the hollow coil. Depending on the position of the core the inductivity changes within the corresponding coil section. This kind of layout provides for more position data than the classical half-bridge or LVDT configuration. An integral electronic circuit transforms these data into a signal proportional to the displacement of the plunger core.

The electronic circuit contains an oscillator, a demodulator, an amplifier and in some cases a current output source. Its SMD-design is short-circuit proof and protected against reverse polarity. The sensor system is completely sealed within a non-corrosive steel case to ensure positive protection against vibration, shock, humidity, oil and corrosive matter.

The new principle of fractional inductivity allotment as described above brings about an outstanding increase of the measuring stroke. In comparison to the IW 250 model the useful range of the IW 260 model increases by 70 to 100% based on the same length of the case.

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Opkon-Wire Draw Position Potentiometers & Encoders.

Draw Wire Potentiometer:

● Potentiometric, voltage divider
● Easy mounting
● High protection degree
Main Applications:
Offers easy mounting and quick solution for linear transducers
Hydraulic transducers
Medical applications
General automation applications

  • Measurement type Resistive
  • Linearity 0,5%, 0,1% or 0,05%
  • Measurement stroke – 800mm, 1800mm
  • Output signal type Voltage divider
  • Output signal Analogue voltage
  • Supply voltage + 28 VDC max
  • Electrical connection 2.5 meter cable (standard)
  • Working temperature -20°C ….+80°C
  • Case material Plastic, steel
  • Protection Degree IP 64

Draw Wire Encoder:
● Incremental output
● Easy mounting
● High protection degree
Main Applications:
Offers easy mounting and quick solution for linear transducers
Hydraulic presses
Wood working, profile and metal processing machinery
Medical applications
General automation applications

  • Measurement type Optical
  • Resolution 200mm/1000pulse
  • Measurement stroke – 1000mm, 2000mm,3000mm,4000mm
  • Output signal type Totempole, TTL, Linedriver or HLD
  • Output signal A, B, Z or A,A’, B,B’, Z, Z’
  • Supply voltage 8-24 VDC or 5VDC
  • Electrical connection 2.5 meter cable (standard)
  • Working temperature -20°C ….+80°C
  • Case material Plastic, steel
  • Protection Degree IP 64

Opkon Literature …

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Opkon-Angle Sensors

OPKON’s core product has traditionally been Resistive Linear Position Transducers. These position sensors are commonly applied in plastic injection machinery, textile machines, transfer and hydraulic, metal forming machines and general automation applications. In the recent years, OPKON has started production of rotary magnetic encoders and linear magnetic incremental sensors, and Rotary potentiometers for Angle Measurement.

Signal outputs from 0-5vdc  over a rotation angle of 45°, 90°, 180° or 360°, with IP Rating of IP-64.

Models are available in a male shaft version c/w Flexible coupling and Mounting bracket, or a Blind hollow shaft version with flexible tether mount.

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