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

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

  • Frequency range: DC ÷ 5 kHz;
  • Extended voltage measurement range up to 40 V;
  • DC current and DC 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 to acquire data from a large number of sensors.

RL-C21M system allows for direct power amplifier control and climatic tests. The controller visualizes temperature and humidity-related data and generates automatic reports.

RL-C21M combines two primary functions in one box thanks to the dedicated software solutions:

  • Sensor calibration system with a calibration module
  • Data acquisition system with software for data recording and analysis SignalUp

Specifications

Input
Input channels
1 ÷ 64 (4/8 per unit)
Input type / Sensor type
IEPE, TEDS, linear, charge, displacement, velocity, force, strain*, temperature
Voltage range
±10 ÷ ± 40 V
Dynamic range
120 dB
Number of digital inputs
8
Output
Output channels
1 ÷ 16
Number of digital outputs
8
Other
Frequency range
DC ÷ 5000 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, 47(63) Hz V
Sample rate
up to 216 kHz
Power consumption
< 50 VA

Program interface

SignalUP. Signal view
SignalUP. Spectrum
SignalUP. File editor
SignalUP. Filtering
SignalUP. Statistical analysis
SignalUP. Waterfall Analysis
TestUp. Sine vibration testing
TestUP. Sine on Random test
TestUp. Shock vibration testing
TestUp. SRS test
TestUp. TTH test
TestUp. Data recording
TestUp. Field Data Replication
TestUp. Test Sequence
TestUp. Multishaker Random
TestUp. Multishaker Sine
TestUp. Fatigue test
TestUp. Transient Capture

Frequently Asked Questions (FAQ)

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

Check the connection of Ethernet cable to the device and PC. Check if the device is loading. The words “RL-C21” should appear on the screen, and if you hold the “Stop” button for more than 3 seconds, it will display the information about the IP-address, serial number and the subnet mask. Another thing to check in case TestUp does not see the device is whether Windows Firewall is enabled and whether there is an antivirus installed. They should be disabled.

Can any problems occur due to the antivirus installed on my PC?

We do not recommend using anti-virus programmes on your PC when working with RL-C21. As the PC communicates with the devices through the network, the antivirus software may sometimes block the data transfer. In case the antivirus software is installed and cannot be deleted, we recommend adding TestUp and the folder, to which it is installed, to the list of antivirus exceptions, or disable the protection.

See more FAQ
During start-up the signal from the sensor is “too great/small”.

First of all, check the correctness of the sensor type settings (ICP, charge or linear) in TestUp software, and the sensor sensitivity. If the problem is still there - no signal, or it is too small, check the integrity of the sensor cable. If the problem has not been solved, check the ICP power current (in case it is an ICP sensor) or connect the sensor to a different channel.

Where can I get a software update?

On our website in the «Downloads» section. Please mind that you need to log in to download the updates. You can access the demo software version without logging in.