Cirrus Optimus+, Руководство по эксплуатации инструмента

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Sound Level Meters – User Manual
About this manual
The instructions in this user manual refer to the operation of Cirrus Research plc Optimus sound
level meters with version 5.0 or higher of the firmware.
The instruments described in this manual are the Red (CR:160 series) and
Green (CR:170 series) with GPS functionality.
This manual describes the recommended usage of the GPS. Any warnings will be
indicated by the following symbol:
The additional information required for testing in accordance with IEC 61672 is provided as a
supplementary document, Optimus Sound Level Meters Technical Data Part B, which is available
for download at:
www.cirrusresearch.co.uk/library/user-manuals/
It is not possible to change the way that the instrument measures through the software or
firmware. Any legal metrology aspects of the instrument cannot be affected by any changes
made in the instrument.
The Common Specifications section on page 33 defines which standards relate to the different
functions available in the instruments. Additional approvals and certifications may apply to the
instruments and these will be listed in the Appendices.
More detailed explanations of the audio recording templates, tonal noise detection and the
repeat measurement timers are available to download from the Cirrus website at
www.cirrusresearch.co.uk/library/user-manuals/