Vibration control and data acquisition system

State-of-the-art vibration control and data acquisition system with a modular scalable architecture. Features simultaneous control of up to 8 shakers at a frequency of 0.1÷35 kHz, an LCD screen, and calibration functionality.

RL-C21 is a powerful multi-purpose device for vibration testing, data acquisition, and hardware calibration. 
The features of the system include:

  • Flexible configuration. Fully determined by the user and tailor-made for your needs. 
  • Scalability. The system can be easily scaled up to 8 devices in one network, allowing you to get up to 32 input and 8 output channels. 
  • High level of shaker protection. All calculations and safety checks are run by a DSP directly in the controller.
  • MEMS & MIMO capabilities. The system can simultaneously control up to 8 two- and three-axis shakers, as well as vibration shakers with up to 6 degrees of freedom.
  • Break protection. Galvanic isolation in the input chains allows effectively protecting input chains from breaks.
  • Calibration options. Calibrate transducers, shakers, and microphones — all in one box. 

RL-C21 is used with a specialized vibration test software package VisProbe SL & VisAnalyser.




VisAnalyser v11 (x86)
VisProbe SL

VisProbe SL

VisProbeSL v52 (x86)
Sensor Calibration

Sensor Calibration

VisProbeSL v48 (x64)
See all versions



  • Input channels
  • Sensor type
    IEPE, TEDS, charge, displacement, velocity, force sensors
  • Filtration
    Analog, digital high-pass and low-pass filters
  • Voltage range
    ±10 V
  • Dynamic range
    ≥ 120 dB
  • Noise level
    < 20 mV
  • Channels crosstalk
    ≤ -100 dB


  • Output channels
    1 ÷ 8 control channels, Up to 8 COLA channels
  • DAC resolution
    24 bits
  • Relative frequency error
    ≤ 5×10⁻⁵
  • Filtration
    Analog filters, digital high-pass and low-pass filters
  • Dynamic range
    120 dB


  • Frequency range
    0.1÷35000 Hz
  • Temperature range
    +5 ÷ +50 °C
  • Dimensions
    390×274×54 mm
  • Weight
    2.3 kg
  • Power supply
    110÷245 V

Electromagnetic Compatibility Directive 2014/30/EU

Low Voltage Directive 2014/35/EU

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.

Can I save channel and shaker configurations?

See more FAQ

Product information

RL-C21 and RL-C25. Sine test profile.

RL-C21 and RL-C25. Random test profile.

RL-C21 and RL-C25. Shock test profile.

RL-C21 and RL-C25. Mixed test profile.

RL-C21 and RL-C25. Channels settings.

RL-C21 and RL-C25. Shaker settings.

RL-C21. Graph Settings



VisProbe SL

VisProbe SL

Sensor Calibration

Sensor Calibration