Cirrus Optimus Green Series, Instrument Hanbook

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Optimus sound level meter - instrument handbook
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4 Operations in more detail
Press the ‘start’ key to begin recording (on data logging intruments
with the VoiceTag function switched on, the VoiceTag screen will
show – press ‘skip’ to move on without recording a note).
Your Optimus is now measuring and recording noise data for all available functions,
regardless of your selected view, and the red animated running icon will show in the
top left of the information bar.
The measurement can be paused by pressing the ‘pause/stop’ soft key.
Press once to pause/back erase and twice to stop, or alternatively press and hold for
three seconds to stop.
The pause/back erase function is only available if this has been enabled in the instrument
menu (more information on page 22).
To stop the measurement, press the ‘stop’ key. The instrument will change from
measurement to review mode, and your data is stored and ready to review and
download. For instruments without data logging, only the last recorded measurement
is available for review.
4.1 NoiseTools
All Optimus instruments can be used with the NoiseTools software, which can be used
to configure the instrument (some options are only configurable within NoiseTools and
not on the instrument – it will be made clear in the text where this is the case).
NoiseTools is also a powerful environment for storing, analysing and organising your
data, and produces reports for publication. VoiceTag notes and audio recordings can
only be played back through NoiseTools.
4.2 Keypad and controls
The Optimus is controlled via the four arrow keys (up, down, left and right), centre
select key and three soft keys, which change in function depending on the mode that
the instrument is in. The soft key function is shown above the button on the display.
The left and right keys move between the views and the up and down keys move
between the pages of each view.
The function of the centre button varies depending on the screen being viewed, and
duplicates one of the soft keys, its function includes ‘menu’, ‘select’, ‘OK’ and ‘exit
review’ of measurements.