"A", "C" and "Z" (flat from
10 Hz to 20 kHz ± 1.5 dB) frequency weightings on
channel 1, "C"
on channel 2 for simultaneous Peak measurements.
RMS "Fast" and "Slow" time weightings.
Clear graphical display with backlight.
Rugged cast aluminum case
Seven Measurement ranges, covering:
25 to 140 dB(A), Peak 143 dB(C)
Noise floor 20 dB(A)
Powered by two AA cell batteries.
Dimensions:
11.8" x 2.9" x 0.9", 15.8 ounces
300mm x 75mm x 25mm, 450g
Measurements stored for display or transfer to computer
using the software provided.
This integrating sound level meter is designed to suit almost
all occupational noise measurement applications. With its measurement
functions (in particular Fast/Slow Sound Level, Leq and Peak),
Type 2 specification, large display and ease of use it meets the
requirements of most national regulations.
Making Quick Measurements
The CR812B can be used for making quick noise assessments,
giving a simple reading for the LAeq, LCPeak as required
by many noise measurement regulations.
Press the
run key
Read the LAeq from the display
Detailed Noise Assessment
Most measurements can be shown on the built in display
but for a more detailed noise survey it is often better
to download the measurements to a computer for further
analysis and reporting.
Stop key
When the Stop key is
pressed the measurement is automatically saved.
Timed and repeating measurements are also possible. For
reporting and post processed visit the software
page.
Deaf Defier Software
The Deaf Defier software and download cable are provided at
no extra cost with the CR:812B. Click
here for more information.
