Sonel CMP-402 Manual De Uso página 59

6.4 PEAK/INRUSH button
6.4.1 PEAK MAX/PEAK MIN function
PEAK function allows user to record very short alternating volt-
age surges.
The meter will update the display each time a lower negative, or
higher positive peak occurs. Auto Power Off feature will be disabled
automatically in this mode.
 To activate the mode, press briefly the PEAK/INRUSH button.
 To disable the mode, press and hold the PEAK/INRUSH button.
 This function is available only when measuring AC voltage.
 While PEAK is active, autoranging is disabled, therfore it is advised to
start the function after connecting test leads to the measurement
point. Running PEAK before that may cause overrange symbols to
appear.
6.4.2 INRUSH function
The INRUSH function captures the starting current precisely in
the beginning of 100-millisecond period when the device is just
started. To perform the measurement:
 activate the AC measurement,
 press briefly PEAK/INRUSH button,
 fasten the clamp on the cord supplying power to the tested object,
 turn ON the tested object,
 read the results.
To disable the mode, press and hold the PEAK/INRUSH button.
 This function is available only when measuring AC current.
 While INRUSH is active, autoranging is disabled, therfore it is advised
to start the function after connecting test leads to the measurement
point. Running INRUSH before that may cause overrange symbols to
appear.
CMP-402 ● CMP-403 – USER MANUAL
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