Vibration control and data acquisition system

Top-of-the-line vibration control system for electrodynamic shakers, featuring up to 8 input channels in one box, direct control of power amplifiers and climatic chambers, as well as support for voltage and temperature measurements.

A direct successor to RL-C21, RL-C21M is an advanced multi-purpose device with improved metrological characteristics and powerful testing capabilities:

  • Extended frequency range: DC ÷ 80000 Hz;
  • Extended voltage measurement range up to 40 V;
  • DC current and voltage measurement;
  • Thermistor and thermocouple connection.

The device has a modular scalable architecture and comes in two modifications with up to 8 input channels in one unit. RL-C21M can be scaled up to 64 input and 16 output channels.

RL-C21M system allows for direct power amplifier control and combined vibration and climatic tests. The controller records and visualizes temperature-related data automatically.

RL-C21M is used with a specialized vibration test software package VisProbe SL & VisAnalyser.


VisProbe SL

VisProbe SL

VisProbeSL v52 (x86)
See all versions



  • Input channels
    1 ÷ 64
  • Sensor type
    IEPE, linear, charge, TEDS, displacement, velocity, force, temperature
  • Voltage range
    ±10 ÷ ± 40 V
  • Dynamic range
    120 dB
  • Number of digital inputs


  • Output channels
    1 ÷ 16
  • Number of digital outputs


  • Frequency range
    DC ÷ 80 000 Hz
  • DAC/ADC resolution
    24 bits
  • Temperature range
    10 ÷ 40 °C
  • Dimensions
    < 395 x 280 x 55 mm
  • Weight
    2.7 kg
  • Power supply
    110 ÷ 245 AC V
  • Sample rate
    up to 216 kHz

Program interface

Frequently Asked Questions (FAQ)

VisProbe SL does not see the device. There is a message saying that the device has not been found.

Are the settings of channels and shakers, which I specify, saved?

See more FAQ

Product information

RL-C21M - Vibration Testing System Expert Review

RL-C21M - All Advantages in One Video

VisProbe SL

VisProbe SL