Extech Instruments 407780A User Manual page 10

Setting the Current Time and Date
Date and time information is stored with each stored record block. Therefore, it is important to
ensure that this information is correct.
1. Press
2. Press and hold the DATE TIME button and then press the
to enter the date and time setting mode.
3. A flashing cursor indicates the currently selected parameter (seconds), use the ▲▼buttons
to set the current second.
4. Press the DATE TIME button to move to the next parameter (minutes) and use the
▲▼buttons to set the current minute.
5. Repeat step 4 to set the current hour, day, month, and year.
6. Press DATE TIME to store the new date and time, and to exit this mode.
Recording Data
In the Integrating Sound Level Meter mode the meter can record and store measurement data.
Memory capacity is 32000 records which can be stored in up to 255 blocks. Recording can start
when integration begins or at a preset time. The stored data cannot be viewed on the meter's
display; it must be downloaded using the supplied PC software.
1. Setting the data sampling rate.
a) Press the
b) Press and hold the INTEG TIME button and then switch the meter ON, the Intr symbol
and the sample rate in seconds will be displayed.
c) Use the▲▼buttons to set the sampling rate (1 to 255 seconds).
d) Press INTEG TIME to store the setting and exit this mode.
2. Set the integrating functions as described previously.
3. Press the RECORD ERASE button to prepare for recording. The REC symbol will appear on the
display.
4. Press the ► ‖ button. The measurements will start and the REC symbol will begin to flash,
indicating that data are being stored.
5. If integration is paused, recording will also pause.
6. When the memory is filled (32000 data points or 255 blocks used), the REC FULL symbol will
be displayed.
800.561.8187
to switch OFF the meter.
button to switch OFF the meter.
www.
button to switch ON the meter
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407780A‐EU‐EN v1.3 4/14