User manual

CR:306 Sound Level Meter User Manual
Page 4
Overview.
Thank you for purchasing the CR:306 sound level meter from Cirrus Research plc. This
entry level meter is designed to be quick and simple to use when taking basic sound
measurements and we are sure it will meet your requirements.
The CR:306 is a general purpose digital sound level meter which meets the full
requirements of IEC 61672 to Class 2. The instrument has 'F' (Fast) response and has
both 'A' and 'C' frequency weightings. In addition facilities are provided to hold the
maximum reading occurring throughout the measurement period.
First time use.
The CR:306 should be inspected for any signs of damage and also to ensure that all
relevant accessories are present. Your CR:306 will have been supplied either as a single
unit or as part of a full measurement kit, CK:306.
CR:306 Instrument Check List
The CR:306 Sound Level Meter is supplied with the following accessories as standard:
CR:306 Class 2 Sound Level Meter
UA:236 50mm wind shield
Calibration Screwdriver
User Manual
Certificate of Calibration
1 x 9V Battery
The CR:306 Sound Level Meter can also be supplied as a complete measurement kit,
the CK:306, which includes a CR:514 Class 2 Acoustic Calibrator and a CP:65 carrying
pouch.
For further details of the options and accessories for the CR:306 Sound Level Meter,
please contact your local representative.