7 globalspecialties.com
Global Specialties
Operating Instructions
Power
The key turns the sound level meter ON with a single push.
Press and hold the same button for 2 seconds to turn OFF the
power.
By default, when the meter is powered on, it is under
auto power off
mode
. The meter will shut itself down after 30 minutes if no key is
pressed. To disable this, press and hold until the symbol is
no longer visible.
Max/Min Hold
First adjust the meter to the correct level range and sample rate
prior to using this function. Press the Max/Min button to start the
maximum and minimum measurement
mode
.
1. Press the button once and “MAX” will display on the
screen. This indicates that the maximum value is being
updated and recorded.
2. Press again and “MIN” will display on the screen. This
indicates that the minimum value is being updated and
recorded.
3. Press once more and “MIN MAX” will blink on the display.
This indicates that both the minimum and maximum values are
being updated and recorded.
Frequency Weighting
A: Weighting for volumes below 50 dB (dBA)
C: Weighting for volumes above 50 dB (dBC)