Make sure that the correct transducer is selected before a microphone (with preamplifier) is connected to the analyser. If the sensor does not appear in the sensor list then first add it in the sensor administration.
It is easy to select the correct transducer, and its settings, if they have reasonable and recognizable names.
If you need to connect the microphone via an extension cable or a gooseneck, then make sure that these devices does not give any conflicts with the electrical parameters or the sound field of interest. Up to 100 m cable can be used if sound levels with peak values up to 120 dB shall be measured up to 10 kHz.
Use a sound calibrator (Nor1255) to verify the performance of the system after the microphone set is connected.