To Next Page

To Previous Page

Model407780‐ENv2.31/14

Datalogging

For detailed information on using the software please refer the software manual on the enclosed CD.

The 407780 can store up to 32,000 measurements. To view, save, print, and manipulate the data, the

records must be downloaded to a PC. Each recorded data set holds the following information:

• Date and Time of reading

• Response time and frequency weighting

• Sampling time (rate of data recording)

• Total number of records

• Leq

• Max L

• Min L

• SEL

• Measurement duration

Start Recording

1. Connect the sound level meter to a PC via the supplied RS-232 cable.

2. Use the supplied Windows

software to activate communication.

3. Set the sampling rate and the measurement time in the supplied software. The meter can now

record remotely (disconnected from the PC) at the rate selected.

4. Press the RECORD/ERASE key to put the meter in Record Standby. The RECORD display icon

will appear on the display.

5. Press the RUN/PAUSE key to start data recording. The RECORD icon will flash once per

second. One reading will be stored for each sampling interval (set in the sampling rate

parameter above).

6. When the measurement time expires, the meter stops recording and the RECORD display icon

switches off.

7. The recorded data can then be down-loaded to the PC using the supplied Windows

software.

Erasing Records

1. When the meter’s memory is full, the FULL display icon will appear on the display.

2. Press and hold the RECORD ERASE key for 3 seconds to erase all records. The FULL display

icon will switch off when the data is cleared.

Extech Instruments 407780 User Manual

Questions and Answers: