If the display shows E3, you must:
* Change the battery
* Then, synchronize the clock with your PC
If the display shows E2, you must:
* Display only (master): Check that the sensor is connected
* Display connected to a limiter: Check that the sensor is connected to the limiter
If the impact study has not defined it, the sensor must be placed:
Either in front of a fixed HP (respecting a distance greater than 80 centimeters)
Either in the middle of the room, on a wall or a ceiling.
The sensor must always be present even if the limiter is in line mode.
The sensor is used for recording history.
Each time an element in the acoustic chain changes, it is IMPERATIVE to redo a calibration.
The cable may be cut, damaged or disconnected.
Yes, you can connect several displays with a single sensor, this will allow you to display the measurement in different locations.