1 Preface
Thank you for purchasing this CR:800C Series Sound Level Meter from Cirrus Research
plc. This powerful instrument provides excellent expansion capability, and has been
designed to provide reliable, accurate measurements over a long period of time.
This manual describes the procedure that should be followed to set up and operate the
CR:800C Sound Level Meter, including comprehensive technical information, using the
optional accessories as well as a troubleshooting guide.
This manual also contains the information regarding the CR:514 and CR:515 Acoustic
Calibrators.
If you are a new user of Sound Level Meters or new to the CR:800C Sound Level Meter,
first read Section 1 Introduction to familiarise yourself with the features, components
and accessories supplied. Then read Section 2 Getting Started for step-by-step
instructions on how to use the instrument.
The different versions of the CR:800C are:
CR:811C Class 1 Broadband Only
CR:812C Class 2 Broadband Only
CR:821C Class 1 Broadband with 1:1 Octave Band Filters
CR:822C Class 2 Broadband with 1:1 Octave Band Filters
CR:831C Class 1 Broadband with 1:1 & 1:3 Octave Band Filters
CR:832C Class 2 Broadband with 1:1 & 1:3 Octave Band Filters
The CR:800C Sound Level Meters meet the requirements for Class 1 and Class 2 of IEC
61672-1:2002 standard for Class 1 Group X or Class 2 Group X Sound Level Meters as
appropriate.
They also meet the requirements for Class 1 and Class 2 according to IEC 60651 and
60804 depending upon the version of the instrument.
To meet the requirements of ANSI S1.4 for Random Incidence microphone response, an
NK:70 Random Incidence Adaptor should be used when making measurements.
1.1 Messages and Symbols
Messages are used in this manual to bring important information to your attention. The
different message types are indicated as shown below.
Please read. A note is a hint or advice that helps you make best use of the
equipment and accessories.
i
Pay attention! A caution informs you that improper use of the equipment or
failure to follow instructions may cause data loss or may damage the
equipment.
To Next Page
Loading...
Need help?
General
