Omega Products HHSL402SD User Manual
Sound Meter
with Data Logging SD Card
HHSL402SD
U Measures 30 to 130dB
U 2 GB SD Card Included
U Automatic Range
Selections
U Real Time Data Logger
U Large Backlit LCD
U MAX/MIN Function
U Auto Power-Off
U RS232 Interface
(Optional Cable)
U Data Logging Software
(Optional)
U Hard Carrying Case
Included
HHSL402SD
The HHSL402SD is a generalpurpose handheld instrument that
measures the noise level of an
environment or the sound level
produced by a piece of machinery.
Using an integrated 13 mm (0.5")
condenser microphone, the meter
can measure sound levels from
30 to 130 dB with a resolution of
0.1 dB and show the results on a
front-panel liquid-crystal display.
Several features and capabilities
enhance the meter’s versatility.
Among them are autoranging,
the ability to hold readings and
display maximum and minimum
readings, and user-settable
measurement parameters such
as frequency weighting (using the
“A” and “C” standards) and time
weighting (fast or slow). Because
it is microprocessor-based, the
HHSL402SD can make full use of
the portability, reliability and large
storage capacities that SD memory
cards offer.
Measurements can be made
automatically at any sampling rate
between one second and one hour.
After timestamping and storing
the measurements on an SD card
plugged into the instrument, the
user can remove the card and
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plug it into to a laptop or desktop
computer either directly or via a
USB card reader. The data points
are stored on the card as files
with the .xls extension, which can
be opened by Microsoft’s Excel
application. The HHSL402SD has
a backlit 64 mm (2.5") diagonal
display and is powered by six “AA”
alkaline batteries or an optional
9V AC/DC adaptor.
Sound wind shield ball.
Specifications
Display Type: LCD with green backlight
Display Size: 52 x 38 mm (2.05 x 1.5")
Parameter Measured: dB
Frequency Range: 31.5 Hz to 8 kHz
Measurement Range:
• 30 to 130 dB in autoranging mode
• User can also select fixed range of
30 to 80 dB, 50 to 100 dB, or 80 to
130 dB
Measurement Weighting:
• By Frequency: Frequency weighing
uses “A” or “C” standard
• By Time: Time weighting is fast or
slow (200 or 500 ms
response time)
Measurement Accuracy:
• With “A” frequency weighting:
± 3.5 dB @ 31.5 Hz, 2.5 dB @ 63 Hz,
2 dB @ 125 Hz, 1.9 dB @ 250 Hz,
1.9 dB @ 500 Hz, 1.4 dB @ 1 kHz,
2.6 dB @ 2 kHz, 3.6 dB @ 4 kHz,
5.6 dB @ 8 kHz
All items included
and shown smaller
than actual size.
Hard carrying case.
2 GB SD card with case.
Measurement Resolution: 0.1 dB
Data Logging Sampling Time:
1 second to 1 hour
Settable Parameters: Date, time,
auto power off, beep sound, sampling
time, decimal point or comma decimal
division, “A” or “C” frequency weighting,
fast or slow time weighting
Storable/Recallable Readings:
Maximum, minimum
SD Card Capacity: 1 to 16 GB
Operating Temperature: 0 to 50°C
(32 to 122°F)
Operating Relative Humidity: 0 to 85%
SM
OMEGACARESM extended warranty program is
Extended Warranty
Program
available for models shown on this page. Ask your
sales respresentative for full details when placing
an order. OMEGACARESM covers parts, labor and
equivalent loaners.
HHSL402SD
Power Supply: Six alkaline “AA”
batteries or optional 9 Vdc AC adaptor
Power Consumption:
• 8 mADC (normal operation, with
backlight off and SD card not
saving data)
• 30 mADC with backlight on and card
saving data
• 44 mADC with backlight on and card
saving data
Dimensions of Meter:
245 x 68 x 45 mm (9.65 x 2.68 x 1.77")
Weight of Meter: 489 g (1.08 lbs)
To Order Visit omega.com/hhsl402sd for Pricing and Details
Model No. Description
HHSL402SD Sound meter with data logging SD card
Accessories (Field Installable)
Model No. Description
2GB-SD Spare 2 GB SD card
ADAPTER-SD AC power adaptor
SW-U101-WIN Software for data logging with RS232 cable
RS232-SD Optional RS232 interface cable
Comes complete with sound wind shield ball, 6 “AA” batteries, hard carrying case, 2 GB SD memory card, and operator’s manual.
Ordering Example: HHSL402SD, sound meter with data logging SD card.
OCW-3, OMEGACARESM extends standard 1-year warranty to a total of 4 years.
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