"A" frequency weighting with "C" weighting
for Peak.
RMS "Fast" and "Slow" time weightings.
LCD display and user programmable keypad.
Rugged cast aluminum case
Two measurement ranges, covering:
32 to 130 dB(A), 143 dB(C).
Powered by a 9V battery (type 6LR61, PP3).
Dimensions, including pre-amp and microphone:
10" x 2.9" x 0.9", 15 ounces
225 x 75 x 25 mm, 410 g
Data storage:
256 measurements, 25000 short Leq elements.
Powerful configuration software, allowing even the keypad of
the instrument to be redefined and reprinted.
The CR:704B instrument offers the necessary functions for Health and
Safety and Environmental measurements, with the added convenience of data
storage and transfer to a Windows PC. Each measurement made is stored
with the usual acoustic and statistical parameters: Leq, Max, Ln, SEL,
etc. Also the time history of the noise measured is stored in the form
of short Leq samples, allowing a graph of the noise against time (with
the software included) and the recalculation of acoustic parameters using
the Acoustic Editor software (not included).
