Cirrus Optimus Green Series, Руководство по прибору

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Optimus sound level meter - instrument handbook
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Specifications
Microphone Class 1 instruments: MK:224 or
MK:229 pre-polarized free-field 1/2”
Condenser
Class 2 instruments: MK:216 pre-
polarized free-field 1/2” condenser
Microphone preamplifier MV:200 removable preamplifier for
Class 1 & Class 2 instruments
Measurement range A single measurement range covering
120 dB without any adjustment
Linear operating range In accordance with IEC 61672:
A-weighted: 24 to 139 dB
C-weighted: 30 to 139 dB
Z-weighted: 45 to 139 dB
Self-generated noise <19 dB(A) Class 1, <22 dB(A) Class 2
Frequency weightings RMS: A, C, & Z measured
simultaneously
Peak: A, C, & Z measured
simultaneously
Time weightings Fast, Slow & Impulse measured
simultaneously
Display High resolution display with ambient
light sensor & illuminated keypad
Display of Measured parameters
Recalled measurement parameters
(data logging versions)
Battery level & external power
connection
Overload & under-range
Time & frequency weighting
Elapsed measurement time
Instrument status
Resolution Display: 0.1 dB (default), 0.01 dB
option selectable in NoiseTools
Storage: 0.01 dB
Memory 4 GB as standard (data logging
versions)
32 GB factory fitted option
Time history 10 ms, 62.5 ms, 100 ms, 125 ms,
250 ms, 1/2 sec, 1 sec, 2 sec (user
selectable)