Portable diagnostic unit for incremental encoders


  • Functional test of installed incremental encoders
  • Indispensable for commissioning, repairs and maintenance
  • Versatile measuring and test functions             
  • Including rotational frequency modulation
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Portable diagnostic unit for incremental encoders

Encoder diagnostic units are multipurpose, portable diagnostic units designed to test the functions of installed incremental encoders on site. They are equipped with a display and offer an extensive range of functions. Amongst others these include TTL/HTL recognition, pulse rate acquisition, signal testing, frequency measurement, speed measurement as well as amplitude measurements. Furthermore, they are suitable for rotational frequency modulation measurements to assess the quality of the encoder attachment.

Technical Data

Product usage

Perform function check of incremental encoders

Supply voltage

12 - 30 V DC

Signal input

Incremental encoder (0-30 V)

Signal output

Display following data/functions:

  • TTL/HTL detection
  • Pulse rate acquisition
  • Signal track check
  • Frequency measurement
  • Speed measurement
  • Signal amplitudes acquisition
  • Measure rotational frequency modulation
  • Measure symmetry (graphic and numeric display)
  • Phasing (graphic and numeric display)
Frequency range

0 - 100 kHz


Portable diagnostic unit in compact, impact resistant housing


190 x 90 x 35 mm

Device temperature range
Degree of protection
Electrical connection

24 pole PHOENIX COMBICON male header

Device options

Additional PC software to save, read and display values (included in scope of supply)

Mechanical options

Scope of supply of device:

  • Plug-in power supply unit
  • Rechargeable batteries (3x AA, max. 2100 mAh)
  • Connection cable for encoder type FG
Special features and certificates



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