• EXAMPLE 1

A level recorder uses the signal from a connected sound level meter or vibration level meter and transcribes time-based changes in sound pressure level or vibration level onto a paper medium, using a moving pen.
The output of the sound level meter or vibration level meter is supplied as an AC signal. Using the selected time weighting characteristics, this signal is converted into a sound pressure level or vibration level amplitude which is written by a pen on recording paper moving at a preset constant speed.
This allows recording changes in sound pressure level or vibration level in real time on site at the measurement location.
If a special sound or vibration event occurs, the operator can also directly make a note on the recording paper.
This is very convenient for example to demonstrate or explain the results of sound pressure level or vibration level measurements right at the measurement location.

PRODUCT LIST

MODEL PRODUCT NAME REMARKS
NL-62 / NL-52 / NL-42 Sound Level Meter, Class 1 / Sound Level Meter, Class 2
VM-55 Vibration Level Meter
LR-07 Level Recorder
Cable