Omega HHSL402SD User Manual

HHSL402SD

Sound Level Meter With

Data Logging SD Card

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User’s Guide

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MADE IN TAIWAN

Servicing North America:

U.S.A.: OMEGA Engineering, Inc.

ISO 9001 Certified One Omega Drive

P.O. Box 4047
Stamford, CT 06907-0047 USA
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec), H7L 5A1 Canada
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

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Customer Service: 1-800-622-2378 /1-800-622-BEST

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Engineering Service: 1-800-872-9436/1-800-USA-WHEN

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Mexico/ En Español: 001 [phone] FAX: [phone]
Latin America [e-mail] e-mail: [e-mail]

Servicing Europe:

Benelux: Managed by the United Kingdom Office

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Czech Republic: Frystatska 184

733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

France: Managed by the United Kingdom Office

Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26

D-75392 Deckenpfronn, Germany
Toll-Free: 0800 6397678 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified

One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

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TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . 4 – 9

What’s in the case . . . . . . . . . . . . . . . . . . . . . . . 4

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 – 6

Calibrating the Meter . . . . . . . . . . . . . . . . . . 6 – 7

Normal Operation . . . . . . . . . . . . . . . . . . . . . 7 – 8

Holding and Storing Measurements. . . . . . . . . . 8

Automatic vs. Manual Datalogging . . . . . . . 8 – 9

Transferring Data from the SD Card

to a Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Maintenance Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2

INTRODUCTION

Thank you for purchasing General Tools & Instruments’ HHSL402SD Sound Level Meter with
Datalogging SD Card. Please read this user’s manual carefully and thoroughly before using
the instrument.

The HHSL402SD is a general-purpose handheld instrument that measures the noise level of
an environment or the sound level produced by a piece of machinery. Using an integrated

0.5 in. condenser microphone, the meter

can measure sound levels from 30 to 130 dB with

a res

olution 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) an

d time weighting (fast or slow). The HHSL402SD can be calibrated by an

op

tional laboratory instrument.

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 pl

ugged into the instrument (a

p

rocess called datalogging), the user can remove the card and plug it into to a laptop or
desktop computer either directly or via a USB card reader. The data logs 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 2-1/2 in. diagonal display and is powered by six “AA”
Alkaline

batteries or an op

tional 9V AC/DC adapter.

KEY FEATURES

• Measures sound levels of machinery or an environment

• Big (2.5 in. diagonal) front-panel green backlit LCD is easy to read

• Makes measurements in autoranging mode or within a manually settable range

• Displays maximum and minimum readings and holds any reading

• Performs automatic datalogging at sampling time settable from 1 second to 9 hours

• Also supports manual logging and changing of card storage location

•

Outputs Excel-compatible data logs

• Accepts SD memory cards of up to 16 GB capacity

• Auto power off function

• Powered by six “AA” batteries or optional 9V AC/DC adapter

3

4

TOP

RIGHT

SIDE

BACK

BOTTOM

FRONT

1-1 Liquid-crystal display
1-2 POWER/ESC button
1-3 HOLD/NEXT button
1-4 REC/ENTER button
1-5

button

1-6

button

1-7 SET button

1-8 LOGGER button
1-9 Microphone
1-10 AC output terminal
1-11 Calibration screw
1-12 RS-232 output jack
1-13 Socket for 9VDC

AC adapter

1-14 Tripod attachment nut
1-15 Battery compartment

cover screws
1-16 Kickstand
1-17 Battery compartment

cover
1-18 SD card socket

OPERATING INSTRUCTIONS

WHAT’S IN THE CASE

The HHSL402SD comes fully assembled in a hard carrying case along with a sound wind
shield ball, a 2 GB SD memory card and this user’s manual.

Figure 1 shows all of the controls and indicators on the front, right side, back and bottom of
the HHSL402SD. Familiarize yourself with the positions and functions of these controls,
indicators and connectors before moving on to the setup

procedure.

F

ig. 1. The HHSL402SD’s controls and indicators and other physical features