Model 90 Quantifier Sound Level Meter
Page 58
Frequency Bands (Nominal Frequencies)
1:1 Octave Band
31Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz
1:3 Octave Band
25Hz, 31Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz,
315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1kHz, 1.25kHz, 1.6kHz, 2kHz, 3,15kHz,
4kHz, 5kHz, 6.3kHz, 8kHz, 10kHz, 12.5kHz, 16kHz
20Hz & 20kHz with MO:800/6 Factory Option
Memory
16Mbit memory allowing up to:
1300 broadband measurements
770 1:1 octave measurements
330 1:3 octave measurements
For example, broadband mode allows 12 days of 15 minute measurements
to be stored.
Calibration records are automatically stored in the instrument memory.
Noise Profile
Short Leq (L
Aeq
,L
Ceq
, or L
Zeq
).
Up to 11 days at 1 second acquisition
Automatic Measurements
The unit can be set to record and store data over fixed times of
1 minute
5 minutes
10 minutes
15 minutes
30 minutes
1 hour
8 hours
12 hours
or a user defined period
Automatic Repeat From 2 to 999 measurements (broadband mode only)
Auto-synchronise to the clock.
Display
Matrix LCD with backlight & Quasi Analogue Bar Graph
Selected measurement parameter with level
Warnings for Overload, Under Range and
Low Battery
Time & Frequency Weighting
Elapsed measurement time
Real time short Leq (broadband mode)
Graphical 1:1 and 1:3 Octave Band (recall mode only)
Recalled stored measurements
Measurement Range
Weight
450 gms
Dimensions
340mm x 75mm x 25mm
