This is our lowest cost environmental sound level meter that includes the usual noise measurement parameters that are needed. It is intended for basic environmental noise surveys, using the meter hand-held or short term on a tripod.
Environmental Noise Measurements
Occupational Noise Measurements
Real-Time Octave and 1/3 Octave Band options
Basic Data Logging
Measures Leq, Ln, Lavg, Min, Max, etc. Simultaneously
Range: 20 to 140 dB(A)
Standards
ANSI S1.4 and ANSI S1.43 to Type 1 or Type 2
IEC 61672 Class 1 or Class 2
IEC60851 and IEC 60804 Type 1 or Type 2
ANSI S1.11-2004 and IEC 60260 Class 0 (Octave and 1/3 Octave Band Filters)
CEL621 Sound Level Meter
Basic Environmental Noise Measurement
Although we have more advanced environmental sound level meters (such as the CEL633), not all applications demand such an advanced meter. The CEL621 provides you with the expected noise measurement parameters, such as periodic Leq and Ln (percentiles such as L10, L50, L90, etc.). These measurements are stored in the meter's memory and can be downloaded to a computer using the Insight software, described below.
What are the Limitations?
The limitations of this lower cost meter are its lack of time history store (graph of sound level over time when downloaded) and the fact that it has a fixed preamplifier (cannot take a microphone extension cable for installation in a weatherproof kit).
In summary, this meter is for attended noise monitoring, either hand-held or mounted on a tripod. In these situations you often do not need the detailed time history or the ability to fit a microphone extension cable.
This is still a true Type 1 or Type 2 sound level meter and there are no limitations when it comes to acoustic performance.
The CEL621 comes complete with data logging capability. Measurements are stored in the meter's internal memory. When connected to a Windows computer, the meter acts like a memory card (shows as a removable drive) so the measurements can be loaded into a spreadsheet or moved to your hard drive for long term storage. There is no need to buy an install special software, which can be a real benefit on a company network where the installation of software is not encouraged.
If you want a little more than just loading the measurements into a spreadsheet then the Insight software simplifies the process of downloading the measurements, storing them in a database, managed by person, place or process criteria. To get the Insight software for the CEL621 include item ISC020 with your order.
