Extech Instruments 407790A, User Manual

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407790A-EN_V2.4 1/20
1. Press the MENU button to enter the menu list screen.
2. Use the

+
/

-
buttons to select “K). Trigger” then press the

button.
3. Use the

+
/

-
button to select the desired option “LEVEL1” or “LEVEL2” then press the

button.
4. Use the

+
/

-
buttons to select “1). Trigger LEVEL” then press the

key.
5. Use the

+
/

-
buttons to set the desired trigger level value (25 to 130). Then press the

button.
6. Use the

+
/

-
buttons to select “2). Trigger Band” then press the

button.
7. Use the

+
/

-
buttons to select the desired trigger band then press the

button.
8. Use the

+
/
 -
buttons to select “4). Slope Type” then press the

button.
9. Use the

+
/
 -
buttons to select the desired trigger slope + or Slope-. Then press the

button.
Note: For LEVEL 2 trigger, ignore the slope setting and only use the Slope+ trigger.
10. Press the MENU button to return to the measurement screen.
11 . Press the R button on the meter to start automatic recording. The meter will start
recording when the trigger level is exceeded.
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