Max/Min, Avg Function; Low Imp. 400 Kω Function - VOLTCRAFT VC880 Notice D'emploi

12. MAX/MIN, AVG Function

The MAX/MIN function enables recording and displaying the
maximum and minimum values during measuring. When the
"MAX/MIN" function is activated, either the max or min value is dis-
played. The current measured value continues to be displayed in the
small upper display. The figure shows an example for the DC voltage
measuring range.
By pressing the "MAX/MIN" button, the current measuring range is set
(autorange is deactivated). The display shows the inverse symbol
"MINMAX" and "MANUAL". The currently measured value will be dis-
played.
Press again to switch on the MAX function. The max value is shown
continually on the main display. You can recolonise this value by the
"MAX" symbol.
Press again to switch on the MIN function. The min value is shown
continually on the main display. You can recolonise this value by the
"MIN" symbol. The automatic measuring range selection is deactivated
now.
Press again to switch on the AVG function. The average value is
shown continually on the main display. You can recolonise this value
by the "AVG" symbol. The automatic measuring range selection is
deactivated now.
To switch off this function, keep the "MAX/MIN" button pressed for
approx. 2 s. The inverse symbol "MAXMIN" goes out and the automat-
ic measuring range selection is activated.
The MAX-MIN function is not available for all measuring functions.
13. Low Imp. 400 kΩ Function
This function must only be used for voltages up to 1,000 V and only up to 3 seconds!
This function enables reducing the measuring impedance from 10 MΩ to 400 kΩ in the voltage measuring range. By
reduction of the measuring impedance, possible phantom voltages that may falsify the measuring result are sup-
pressed.
Press this button (9) during voltage measurement (max. 1,000 V!) for no more than 3 seconds. After release, the mul-
timeter returns to the normal measuring impedance of 10 MΩ . While the button is pressed, a signal sounds and the
display "WARNING!" appears.
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