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If, after pressing the power button, the green LED does not light, connect the device to the AC/DC-adapter from the delivery set and try again in 15-20 minutes.
First of all, check the correctness of the sensor type settings (IEPE, 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 IEPE power current (in case it is an IEPE sensor) or connect the sensor to a different channel.
If it is Sine test, you should set the “Synchronous detector” control algorithm for the control channel. In case of Random test, select the "in task spectrum" parameter from the drop-down menu “RMS is calculated in…” of the “Control” tab.
We do not recommend using anti-virus programmes on your PC when working with RL-C21 or RL-C25. As the PC communicates with the devices through the network, the antivirus software may sometimes block 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.
The settings are saved to dedicated databases, and, having specified them once, you are able to use them in all tests.