DATA LOGGER SOUND LEVEL METER
14
§ Relative Operation for Main Display
When one press the “rREL” button, the meter will memorize the
present reading and the difference between the new
reading and the memorized data will be shown on the display.
Press the “rREL” button again to exit the Relative operation.
§ MAX/MIN/AVG Operation for Main Display
When pressing the "MAX/MIN" button the meter will enter the
MAX/MIN mode. Under this mode the maximum value, minimum
value is kept in the memory simultaneously and updated with every
new sample of data. When the MAX symbol is display, the Maximum
is shown on the display.
Press "MAX/MIN" again, then the MIN symbol is on the display and
also the minimum reading.
Press "MAX/MIN" again, MAX, and MIN will blink together. This
means that all these data is updated in the memory and the reading
is the present temperature.
One may press "MAX/MIN" to circulate the display mode among
these options.
When the meter is under "MAX MIN" operation and “°C/°F” button
are disabled (when you press “ °C/°F ” button in "MAX MIN" mode,
there will be two continuous beep).
To exit the MAX/MIN mode, one may press and hold "MAX/MIN" for
two seconds.
§ Auto Power Off
By default, when the meter is powered on, it is under auto power off
mode. The meter will power itself off after 30 minutes if no key
operation and no RS232 communication combination at power on
can disable auto power off.
One may press and hold “HOLD” button and then power on the
meter and there will be two successive beeps to indicate that auto
power off is disabled and the will not show up.
§ Low Battery Condition
When the battery voltage is under proper operation requirement, the
Symbol will be shown on the LCD and the battery needs to be
replayed with new one.