Metrix MX 407 Notice De Fonctionnement page 27

4. Press the key and hold it down until the measurement is
stabilized. The display is automatically locked (automatic
HOLD). The symbol lights during the measurement.
The measured resistance value is displayed on the screen. The
HOLD symbol is lit.
3.1.2 Voltage measurement
The instrument measures:
direct voltages (DC);
alternating voltages (AC);
To measure a voltage, proceed as follows:
1. Set the switch to VAC or VDC.
2. Connect the black lead to the COM terminal and the red lead to "V- ";
3. Place the contact tips on the terminals of the circuit to be
measured;
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