Setting The Level Alarm (Cr:308); Performing And Printing A Measurement (Cr:310) - Cirrus Research CR308 Handbook

12
CR:308 & CR:310 sound level meters - instrument handbook
6.3

Setting the level alarm (CR:308)

The level alarm function can be used to trigger an alert if the noise level exceeds a
predetermined value, which is set by you.
To set the alarm level, press to enter the alarm set up display.
Set the desired level using the arrow buttons and enable the alarm using the arrow
buttons to select the tick (a cross denotes that the level alarm is disabled). When set,
press (OK).
NB: the alarm level must be set to less than 129dB.
With the alarm level enabled, the main display will show if the level has been exceeded
by showing an Asterix (*) next to the sound level reading. The triggered threshold limit
can be reset by pressing .
NB: this will also reset the maximum, minimum ad LCpk measurement.
13
CR:308 & CR:310 sound level meters - instrument handbook
6.4

Performing and printing a measurement (CR:310)

Press to start or stop a measurement. Whilst a measurement is running, the latest
values will be displayed on the screen, with the measurement duration shown at the
bottom. Alternative measurement parameters can be viewed by pressing the up/down
arrow buttons.
Overload and under-range are denoted by the ^ and indicators in the top right corner
of the screen.
After stopping a measurement, the overall measurement values are displayed. Press the
up/down arrows to scroll through the overall measurement values.
If a printer is attached, the results can be printed by pressing
The measurement view can be canclled by pressing
(Print).
(Exit).