Extech Instruments 407790A, User Manual

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407790A-EN_V2.4 1/20
5. Storing Data to Memory
The meter can store measurement data in the internal memory or on a micro SD card. There are three
different ways of storing data, as listed below.
Manual:
In this mode, the operator stores the measured sound level data and processed value data into the
memory manually.
Press the R record button to cause the current sound level and processed values derived from
the measurement, as well as the measurement parameters and time of recording to be recorded
in a single measurement.
Memory capacity: max. 250 data sets
Manually stored data can be recalled by the meter.
Auto 1:
Sound level meter mode
Continuous store of main channel and sub channel all-pass values as 1 set, at preset record
interval times.
Octave Analyzer mode
Continuous store of main channel sound level Lp values for each band and all-pass values, sub
channel all-pass values as 1 set at preset record interval time.
Auto 2:
Sound level meter mode
Continuous store of main channel and sub channel all-pass values as 1 set at preset
measurement integrate time.
Octave Analyzer mode
Continuous store of main channel sound level Lp values for each band and all-pass values, sub
channel all-pass values as 1 set at preset measurement integrate time.
Automatically recorded data can be retrieved using the supplied software.
5.1 Manual Memory Storage
Memory Store:
Press the store key to store the current sound level and processing values. Only the sound level is
stored when the R button is pressed. There will be no processing values displayed when
the meter is powered on.
1. Power on the meter.
2. Press the MENU button to enter the menu list screen.
3. Use the

+
/

-
buttons to select “B). Storage” then press the

key.