The sound level measuring device SL-451 has an integrated data logger. The data logger can record
measuring values with time stamp. Upon commissioning, you have to set the time and date.
Turn the measuring device off.
Keep the button “SETUP” depressed and turn the device on. Keep both
buttons depressed until “TIME” appears on the display.
After letting go of both buttons, the setup menu with the default date display
appears.
To access the individual setting points, press “SETUP” until the desired
parameter appears.
You have to conrm and complete your settings by pressing “HOLD” for
saving the data. Then the setup menu is terminated and the measuring
display appears.
In the SETUP menu, press the button “SETUP” 1x.
The display for setting the minutes “m” appears.
Press the “LEVEL” button to set the current minute time. Keep the button
depressed to set the value faster. The values ascend and start again at the
beginning.
Switch to the next setting with the button “SETUP”, or complete your setting
with the button “HOLD”.