Encoders

What is an encoder?

An encoder (also known as a tachometer or rotary pulse generator) is an electromechanical appliance that converts mechanical rotations into electrical pulses. These pulses can be used to determine speed, position, and duration. A typical use is the feedback in AC and DC motor drive control systems. They are also used to measure and instrument process lines to improve productivity.

We, Kurt Maier Motor-Press GmbH, are the German general agency for the US company Nidec Avtron . Within our range of products we offer tacho-generators as well as incremental-  and  absolute encoders in optical and magnetic version. The main feature of these products is their robust design - they are specifically suitable for applications in the hoisting, crane and heavy industry. Further fields of application are in wind energy and in the petro-chemical industries.

AVTRON encoders are equipped with large bearings that guarantee a long service life.
In the magnetic encoder range, AVTRON also offers models without bearings (e.g. AV56, AV115) which are fixed directly on the motor shaft via a special clamping assembly. Associated to a non-contact sensor, which is completely moulded for protection against dust, water and oils. Thus offering a vertial wear-free encoder.

Magnetic encoders

The sensors of the magnetic encoders use resistors reacting to magnetic fields. When capturing, the encoder rotors with their magnetic poles create a sine wave that is transformed into a square wave. Depending on the model impluses (PPR) between  2 to 8192 can be generated. With the required power supply an operation down to zero is possible. Furthermore you can use cable lengths up to 600m (2000feet). Nidec-AVTRON`s „Wide-Gap magnetoresistive technology“ resists interferences from motors and brakes and are resistant against contaminants and mechanic damage like scratches to the sensor.

 

Optical Encoders

This system uses an infrared LED light source that shines through a rotating, slotted or photo-etched disk on to a photoelectric cell. It creates a signal puls when the rotated disk releases the light via the slots or transparent segments to the photo cell. This generated signal is amplified  and produces a square wave output. In this way 32768 pulses (PPR) can be reached. With the required power supply operation down to zero is possible. Nidec-Avtron's "Wide-Gap optical technology"  eliminates sensor damages by shocks or vibrations and Nidec-Avtron never uses fragile glass discs. There is always enough air between sensor and disc.

Avtron AV115 THIN-LINE III™ Incremental-Encoder – magnetic

  • Heavy Mill Duty
  • Suitable for 10 – 85 mm shafts
  • Simple, Secure Installation
  • All models are protected against all short circuits and wiring errors
  • Wide-Gap Technology: No Sensor Scraping or Adjustment
  • Impulses of 4 – 50000 PPR
  • No Couplings or Bearings
  • Sealed Electronics
  • Self-Diagnostic LED and Alarm Output
  • Universal 5-24 V Operation
  • 3 Year No-Hassle Warranty
  • Adapters available to fit 85 mm Euro B-Flanges

Avtron AV125 SMARTach II™ Incremental Encoder – magnetic

  • Heavy Mill Duty
  • Up to 7.88″ (200 mm) Shafts
  • Up to 8192 PPR
  • Removable Sensor
  • Wide-Gap Technology, No Air Gap Adjustment Required
  • Mounts Securely to Motor
  • Outputs Fully Short Circuit Protected
  • Self-Diagnostic LED & Alarm Output
  • Sealed Electronics
  • -40°C to +100°C Operation
  • 3 Year No-Hassle Warranty
  • Excellent for Brake Applications

Avtron AV20 Incremental-Encoder – optical

  • Shaft Sizes include 1/4″, 3/8″, and 10 mm
  • Simple Installation
  • Unbreakable Optical Disc
  • Up to 3600 PPR
  • Wide-Gap Technology: Up to 8X larger gap between sensor and rotor
  • Direct Replacement for Model H20 and Others without Rewiring
  • Industry Standard Face or Flange Mounting
  • IP65/Nema 4 Rating: Dust and Liquid Tight
  • Superior Bearings and Seals
  • -40°C to +100°C Operation
  • 2 Year No-Hassle Warranty

Avtron AV25 Incremental-Encoder – optical

  • Shaft Sizes Include 1/4″, 3/8″, and 10m
  • Simple Installation
  •  Unbreakable Optical Disc
  • Up to 5000 PPR
  • Wide-Gap Technology: Up to 8X larger gap between sensor and rotor
  • Directly Replaces H25, HA525, HA625, HC525, HC625, HR525, HR625, H42 and Many Other Standard 2.5″ Encoders
  • Industry Standard Face or Flange Mounting
  • IP65/Nema 4 Rating: Dust and Liquid Tight
  • Superior Bearings and Seals
  • -40°C to +100°C Operation
  • 2 Year No-Hassle Warranty

Avtron AV30 Absolute-Encoder – magnetic

  • Fits Industry Standard 2.5″, 58 mm and 85 mm Flanges
  • Shaft Sizes 1/4″-3/8″ (10 mm-18 mm)
  • Directly Replaces Standard Models
  • Up to 27 Bit Resolution
  • Moisture-Proof, Shock Resistant Magnetic Sensor
  • Singleturn or Multiturn
  • IP65 Rating
  • Bearings 20X Larger Than Standard Encoder!
  • No Batteries or Gears!
  • -40° to 85°C Operation
  • 3 Year No-Hassle Warranty

Avtron AV45 EuroSMART ™ Incremental-Encoder – magnetic

  • Suitable for the european B10 Standard Flange           Replaces Competitive Models Without Rewiring or Mechanical Changes
  • Universal 5-24V Operation
  • Protected from Wiring Errors
  • LED & Remote Alarm Diagnostics
  • Mechanical Overspeed Switch Option
  • -40°C to +100°C Operation
  • 3 Year No-Hassle Warranty

Avtron AV485 SMARTach II™ Incremental-Encoder – magnetic

  • Severe Mill Duty
  • Up to 5000 PPR
  • Replaces Competitive Models Without Rewiring
  • Self-Diagnostic LED & Alarm Output
  • Foot or NEMA 56C Face Mount
  • Removable Sensors
  • IP66 Enclosure
  • High-Power Output Standard
  • Outputs Fully Short Circuit Protected
  • Optional Dual Isolated Outputs

Avtron AV56 THIN-LINE III™ Inkremental-Encoder – magnetic

  • Heavy Mill Duty
  • Simple, Secure Installation
  • All models are protected against all short circuits and wiring errors
  • Wide-Gap Technology: No Sensor Scraping or Adjustment
  • Up to 50000 PPR
  • No Couplings or Bearings
  • Sealed Electronics
  • Self-Diagnostic LED and Alarm Output
  • Universal 5-24V Operation
  • 3 Year No-Hassle Warranty

Avtron AV56S THIN-LINE III™ Incremental-Encoder – magnetic

  • Heavy Mill Duty
  • Simple, Secure Installation
  • All models are protected against all short circuits and wiring errors
  • Wide-Gap Technology: No Sensor Scraping or Adjustment
  • Up to 50000 PPR
  • No Couplings or Bearings
  • Sealed Electronics
  • Self-Diagnostic LED and Alarm Output
  • Universal 5-24V Operation
  • 3 Year No-Hassle Warranty

Avtron AV67 THIN-LINE III™ Incremental-Encoder – magnetic

  • Heavy Mill Duty
  • Simple, Secure Installation
  • All models are protected against all short circuits and wiring errors
  • Wide-Gap Technology: No Sensor Scraping or Adjustment
  • 4 to 50000 PPR
  • No Couplings or Bearings
  • Sealed Electronics
  • Self-Diagnostic LED and Alarm Output
  • Universal 5-24V Operation
  • 3 Year No-Hassle Warranty

Avtron AV685 SMARTach II™ Incremental-Encoder – magnetic

  • Severe Mill Duty
  • Up to 5000 PPR
  • Replaces Competitive Models Without Rewiring
  • Self-Diagnostic LED & Alarm
  • Outputs Fully Short Circuit Protected
  • Removable Sensors
  • End of Shaft and Thru Shaft Models Available
  • IP66 Enclosure
  • High-Power Output Standard
  • Optional Dual Isolated Outputs
  • 1 Year No-Hassle Warranty

Avtron AV6A Absolute-Encoder – optical

  • Industry Standard 58 mm Size
  • Up to 30 Bit Resolution
  • Unbreakable Optical Disc
  • Singleturn or Multiturn
  • IP66 Rating
  • Superior Bearings and Seals
  • No Batteries
  • -40°C to +85°C Operation
  • 2 Year No-Hassle Warranty

Avtron AV6M Absolute-Encoder – magnetic

  • Standard 36mm and  58 mm Sizes
  • Up to 27 Bit Resolution
  • Moisture-Proof, Shock Resistant Magnetic Sensor
  • Singleturn or Multiturn
  • Up to IP69K Rating
  • Superior Bearings and Seals
  • No Batteries or Gears!
  • -40° to 85°C Operation
  • 2 Year No-Hassle Warranty

Avtron AV85 THIN-LINE III™ Incremental-Encoder – magnetic

  • Heavy Mill Duty
  • Simple, Secure Installation
  • All models are protected against all short circuits and wiring errors
  • Wide-Gap Technology: No Sensor Scraping or Adjustment
  • Up to 50000 PPR
  • No Couplings or Bearings
  • Sealed Electronics
  • Self-Diagnostic LED and Alarm Output
  • Universal 5-24V Operation
  • 3 Year No-Hassle Warranty

Avtron AV850 SMARTach II™ Incremental-Encoder – magnetic

  • Heavy Mill Duty
  • Installation in Minutes!
  • Up to 5000 PPR
  • Removable Sensors
  • Wide-Gap Technology, No Air Gap Adjustment Required
  • Mounts Securely to Motor
  • Outputs Fully Short Circuit Protected
  • Self-Diagnostic LED & Alarm Output
  • Sealed Electronics
  • -40°C to +100°C Operation
  • 3 Year No-Hassle Warranty
  • Excellent for Gear Motors and Brake Applications

Avtron Bullseye32™ Incremental-Encoder – magnetic

  • Suitable for 4 – 25 mm and 1/4″ – 1′
  • Replaces Hollow Shaft Models Directly
  • No Moving Wearing Parts
  • Universal 5-24V Operation
  • LED & Remote Alarm Diagnostics
  • -40°C to +100°C Operation
  • OEM-Programmable PPR
  • 2 Year No-Hassle Warranty

Avtron HS25A Incremental-Encoder – optical

  • Fits shafts 3/8″ to 3/4″ (6-16 mm)
  • Simple Installation
  • Unbreakable Optical Disk
  • Up to 8192 PPR
  • Wide-Gap Technology: Up to 8X larger gap between sensor and rotor
  • Replaces Competitive Models without Rewiring
  • Fits end of shaft applications
  • IP65/Nema 4, 13 Rating: Dust and Liquid Tight
  • Superior Bearings and Seals
  • -20°C to +100°C Operation
  • 2 Year No-Hassle Warranty

Avtron HS35A Incremental-Encoder – optical

  • Fits shafts 1/2″ to 1″ (12-20 mm)
  • Simple Installation
  • Up to 5000 PPR
  • Unbreakable Optical Disk
  • Wide-Gap Technology: Up to 8X larger gap between sensor and rotor
  • Replaces Competitive Models without Rewiring
  • Fits end of shaft and through shaft applications
  • IP65/Nema 4, 13 Rating: Dust and Liquid Tight
  • Superior Bearings and Seals
  • -20°C to +100°C Operation
  • 2 Year No-Hassle Warranty

Avtron HS35M Incremental-Encoder – magnetic

  • Fits shafts 1/2″ to 1 1/8″ (12-30 mm)
  • Simple Installation
  • Up to 3072 PPR
  • Replaces Competitive Models without Rewiring
  • No Solder Industrial EPIC Connector Available
  • Fits end of shaft and through shaft applications
  • High Power Outputs Available
  • -20°C to +85°C Operation
  • Optional Dual Isolated Outputs
  • Fully Insulated from Motor Shaft Currents
  • 2 Year No-Hassle Warranty

Avtron HS40 Absolute Encoder – magnetic

  • Fits Shafts 5/8″-1 1/8″ (16 mm-30 mm)
  • Up to 27 Bit Resolution
  • Moisture-Proof, Shock Resistant Sensor
  • Singleturn or Multiturn
  • IP65 Rating
  • Massive Bearings, Severe Duty Seals
  • No Batteries or Gears!
  • -40° to 85°C Operation
  • 3 Year No-Hassle Warranty
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