Facom 714 Notice D'instructions page 17

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USER INSTRUCTIONS
Measuring voltage
• Connect the measuring cords to the tester's terminals according to the polarity
indicated: red cord on the «+» terminal and black cord on the «COM» terminal.
• Set the rotating switch to the "V" position.
• Select the nature of the voltage to measure using the yellow key, i.e. DC, AC.
Otherwise, selection is automatic when connecting the tester to the voltage source to
be measured.
• Connect the tester to the voltage source to measure, and if possible check the latter
does not exceed the maximum admissible limits.
Voltage measurements are made over 3 ranges: 40V, 400V, 4000V (limited to
600V).
Beyond 600V, the display indicates OL, and produces a repetitive beep.
In AC, if the signal measured is < 150 mV (15 display pt), the display shows zero,
although the tester continues measuring, and may select the nature of the voltage
measured.
In DC, if the signal measured is < 20 mV (2 display pt), the display shows zero,
although the tester continues measuring, and may select the nature of the voltage
measured.
To view the minimum and maximum values of the current reading, press the "MIN/
MAX" key several times.
VOLTAGE MEASUREMENT CHARACTERISTICS
Display range
Measurement domain
Resolution
Intrinsic error
Operating frequency range
Input impedance
Note : In DC, the display indicates «+OL» beyond +600V, and «-OL» beyond -600V.
In AC, the display indicates "OL" beyond 600 Vrms. The "+" and "-" signs are
not managed.
At 600 VDC or 600 Vrms, repeated buzzer beeping indicates the voltage
measured exceeds the safety voltage for which the tester is guaranteed.
16
40 V 400 V
0,02 - 39,99 V DC 40,0 - 399,9 V DC 400 - 600 V DC
0,15 - 39,99 V AC
10 mV 0,1 V
1%L +2 pt
10 à 5000 Hz
300 k Ω
4000 V
(note)
1 V