CEL-63x Environmental & Occupational Noise Meter
3
Casella CEL
Measurement stop screen ............................................................................................... 27
Calibration mode ............................................................................................................. 29
Measurement run screens ............................................................................................... 31
Menu screens .................................................................................................................. 33
USB connect mode .......................................................................................................... 47
4.4
Measurement views ........................................................................................................ 48
User settings.................................................................................................................... 48
Measurement functions ................................................................................................... 50
4.5
Connections .................................................................................................................... 55
Power input port ............................................................................................................. 55
Mini B USB port .............................................................................................................. 55
AC and DC output port ................................................................................................... 56
5
Mode Selection (SLM, Online, NNR) ............................................................................ 57
5.1
General ............................................................................................................................ 57
5.2
SLM Mode ....................................................................................................................... 57
5.3
Online Mode ................................................................................................................... 57
5.4
NNR Mode ....................................................................................................................... 57
6
Specifications .............................................................................................................. 59
6.1
General ............................................................................................................................ 59
6.2
Standards ........................................................................................................................ 59
6.3
Measurement range ........................................................................................................ 60
6.4
RMS frequency weightings ............................................................................................. 60
6.5
Octave and 1/3-Octave measurement ............................................................................. 60
6.6
Peak measurement ......................................................................................................... 60
6.7
RMS detector .................................................................................................................. 60
6.8
Noise floor ...................................................................................................................... 60
6.9
Frequency response ........................................................................................................ 60
6.10 Time weightings .............................................................................................................. 61
6.11
Correction filters ............................................................................................................. 61
6.12 Reference direction ......................................................................................................... 61
6.13 Reference conditions ...................................................................................................... 61
6.14 Operating environmental conditions .............................................................................. 61
6.15 Effects of temperature .................................................................................................... 61
6.16 Effects of humidity .......................................................................................................... 61
