Integrating-averaging Sound Level Meter Type 2240 – User Guide4
Welcome
This user guide introduces you to Type 2240 Integrating-averaging Sound Level Meter, how the
instrument works, which parameters you can measure, and how the instrument should be oper-
ated. In addition, some practical hints and guidelines are provided for, including all relevant
technical specifications. Finally, a glossary is added to help with specific terminology found in
this guide.
Summary of Contents
• Chapter 1 – Introduction: provides a general overview of the user guide and describes
Sound Level Meter Type 2240’s uses and features
• Chapter 2 – Getting Started: provides basic introductory information to sound level meters
and your instrument, including: general terminology, description of instrument parts, display
and key definitions, and battery installation
• Chapter 3 – Making a Measurement: step-by-step instructions on how to take a measure-
ment with Type 2240
• Chapter 4 – Basic Operation: contains information and appropriate procedures on how to
use Type 2240, including calibration, start-up, reading and key operation guides
• Chapter 5 – Practical Guidelines: gives tips on how to take a successful sound level meas-
urement, and what conditions and actions to avoid
• Chapter 6 – Maintenance and Service: provides care, cleaning and storage instructions as
well as information on where to go for service of your instrument
• Chapter 7 – Specifications: a comprehensive listing of technical specifications of Type 2240
• Chapter 8 – Glossary: a quick list of terms used in this guide and their definitions
Conventions Used in this Guide
Instructions and descriptions that refer to Type 2240 instrument keys are shown with the key
icons as seen on the instrument. See Chapter 2 for a complete list of of key icons and their
functions.
Instructions and descriptions that refer to Type 2240 instrument display text are indicated using
Courier type face. For example, “Press until L
Aeq
is visible on the screen”.
Terms that are defined in the Glossary (Chapter 8), are highlighted in italic bold.
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