8. Initial operation
Inserting the batteries
Before the initial operation of this meter, you must first install a new 9V block battery. Battery
installation is described in the „Maintenance and Cleaning“ section.
9. Device Functions
The sound level detector has various extra functions that ease operation and handling and
which extend its range of application.
These extra functions are:
Auto power OFF function
In order to avoid that the operating life of the battery is shortened unnecessarily, an automatic
switch-off function has been implemented. The device will be automatically switched off if no
button is pressed within a period of about 8 minutes. You can switch the device back on with
the „Power“ button.
HOLD function
The measured value currently being displayed is held in the display. The active function is shown
in the display by „HOLD“.
SL-100:
Press the „HOLD“ button to activate this function. Press again to switch back to the continuous
measuring mode
SL-200:
Press and hold the „MAX/HOLD“ button for about 2 seconds. To switch off, also press this switch
for about 2 seconds.
MAX function
Only the maximum value is shown in the display during continuous measurements. This
measurement function makes it easier for you to determine the peak level. The active function
is shown in the display by „MAX“.
Press the „MAX“ button to activate this function. Press again to switch back to the continuous
measuring mode
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