Extech Instruments 407790A, User Manual

Page: 18 / 55

18
407790A-EN_V2.4 1/20
3.4 Sub Channel Settings
To access the sub menu setting press the following buttons.
1. Press the MENU button to enter the menu list screen.
2. Use the

+
/

-
buttons to select “G). Sub Time Weight” then press

button.
3. Use the

+
/

-
button to select the desired time weighting
F, S, τ (10ms) or I (Impulse 35ms), then press

button.
4. Press the

+
/

-
buttons to select “H). Sub Freq Weight” then press

button.
5. Press the

+
/

-
buttons to select the desired frequency weighting A, C or Z, then press

button.
6. Press MENU button to return to the measurement screen.
Note: There is no frequency analysis function for the sub channel. Only the all - pass value is
measured.