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motrona: control-motion-interface       
     control  -  motion  -  interface


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Panel Meters, Indicators

Electronic Counters

Tachometers, Frequency Meters

Timers, Industrial Stopwatches

SSI Indicators, Parallel Displays


Speed and Motion Monitors


Synchronization of Drives

“Flying” Saw and Shear Control

Rotating Cross Cutter Control

Rotary Eccentric Shear Control

Tubular Bag Machine Control

Winding and Traverse Control

Printing and Punching Control


Signal Converters Frequency >>

Signal Converters Analogue >>

Signal Converters SSI and Parallel >>

Signal Converters Incremental >>

Level Converters TTL-RS422-HTL

Encoder Distributors,  Splitters

Frequency Dividers, Multipliers

Interface for SinCos Encoders

Combinations with Converters


Tachometers, Rate Meters, Frequency Counters
Indicators for Speed, Differential Speed, Speed Ratio etc. 

* = instant stock availability

    DX 020*: Panel Tachometer and Frequency Counter

  • Simple low-cost panel tachometer with dimensions 48 x 24 mm (1.89 x 0.945’’)
    and LED size of 8 mm (0.315’’)
  • Power supply 10 – 30 VDC, Impulse input for max. 60 kHz
  • Suitable for display of RPM, frequency, speed and cycle rate in a range
    from 0 to 999 999 engineering units
  • Programmable full scale display at any  input frequency
  • Easy to set up by two front keys and menu support
  • Add-on frame for 50 x 25 mm panel cut-out (1.969 x 0.984’’)

Electronic Rate Meter / Tachometer


    ZX 122, ZX123*: Preset Tachometer with Relay Outputs

  • Multi-purpose tachometer with dimensions 48x48 mm (1.89 x 1.89’’)
    and operation modes as tachometer, counter or timer / stopwatch
  • Two presets and two output relays
  • ZX 122: 10 – 30 VDC power supply, 
    ZX 123: 90 – 250 VAC and aux. output 24 VDC for encoder supply,
    otherwise both models are similar
  • Max. input frequency 20 kHz respectively 10 kHz
  • Bright LED display, 6 decades at 8 mm size (0.315’’)
  • Programmable impulse scaling factor
  • Easy to set up by four front keys and menu support
  • Add-on frame for 50x50 mm panel cut-out (1.969 x 1.969’’)

Electronic Preset  Tachometer


    Tachometers, Speed and Rate Meters with Outputs and Interfaces

    DX 342*:  Speed and Rate Meter (2 relays, serial RS232/485 interface)
    DX 345*:  Speed and Rate Meter (display only)
    DX 346*:  Speed and Rate Meter (analogue output)
    DX 347*:  Speed and Rate Meter (2 presets / transistor outputs)
    DX 348*:  Speed and Rate Meter (serial RS232 / RS485 interface)

  • Universal multi-function units  with operation modes as tachometer, speed or rate meter and frequency counter.
  • Suitable for display of RPM, speed, cycle rate, baking and processing time, with supplementary counter and timer / stopwatch functions.
  • Counting frequency 25 kHz in speed mode and 100 kHz with  A/B quadrature count
  • Dimensions 96 x 48 mm (3.780 x 1.890’’) and 6 decade LED display at 15 mm
    (0.590’’) size
  • Universal inputs for sensors and encoders with PNP/ NPN or Namur characteristics (HTL level 10 - 30 V)
  • Easy scaling and setup by means of 3  front keys and menu support
  • Selectable linearization function with 16 interpolation points
  • Aux. output 24 VDC / 150 mA for supply of sensors and encoders
  • Power supply 115/230 VAC or 24 VDC (model DX342: 24 VDC only)

Speed and Rate Meter


    Dual Frequency Counters with 2 Encoder Inputs for Measuring of RPM, Speed,
    Baking and Processing Time, Speed Ratio, Differential Speed etc.

    SD 340*: Speed Ratio Meter (RS232 interface)
    SA 340*: Speed Ratio Meter (RS232 interface, analogue output)
    SR 340  : Speed Ratio Meter (RS232 and RS485 interface)

  • Measuring functions: tachometer, rate meter and frequency counter with two independent encoder inputs for use with incremental encoders, proximity switches, photocells
  • Both impulse inputs with individual scaling, each adjustable to 1, 2 or 4 tracks  (A, /A, B, /B), suitable for frequencies from 0,01 Hz up to 1 MHz
  • Programmable operating modes for rpm, speed, processing time (reciprocal speed), sum speed or differential speed, speed ratio and percentaged speed difference
  • 4 preselections with fast-switching outputs and programmable
    maintain / latch / start-up delay functions
  • Adjustable filtering functions, programmable linearization and more
  • Power supply 24 VDC or 24 VAC, dimensions 96 x 48 mm (3.780 x 1.890’’)

Speed ratio and differential speed

Speed Ratio Meter


    Dual Frequency Counters with Relay Outputs and optional Thumbwheel Switches

    SD 640-644 : Speed Ratio Meter (RS232 interface)
    SA 640-644 : Speed Ratio Meter (RS232 and analogue output)
    SR 640-644 : Speed Ratio Meter (RS232 and RS485 interface)

  • The frequency meters shown here provide exactly the same technical properties and functions as series SD/SA/SR 340 shown above
  • Moreover, these models are  additionally equipped with 4 output relays
     (one dry changeover contact each)
  • According to need, these models are also available with up to four front thumbwheel switch sets (preselection switches)
  • Front dimensions 96 x 96 mm (3.78 x 3.78 ‘’)
  • All available models and possible combinations are clearly described in the
    PDF operating instructions

Differential Speed Meter





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