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VOLTCRAFT VC851 Gebruiksaanwijzing pagina 63

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Beschikbare talen

Beschikbare talen

11.5 LoZ voltage mode
LoZ mode allows you to measure DC and AC voltages with a low impedance (ap-
prox. 400 kΩ). In this mode, the multimeter lowers the internal resistance to prevent
"phantom" voltage readings. As a result, the circuit is more heavily loaded than in the
standard measurement mode.
To enable LoZ mode, press the "LoZ" button when taking a voltage measurement.
The impedance will be reduced until you release the button. In the LoZ mode, a
beep sounds and the display (B) is indicated.
The "Loz" symbol (C9) appears on the display.
The LoZ mode can only be used for circuits with a voltage of up to
1000 V. The duration of the LoZ measurement must be limited to a
maximum of 3 s.
After using the LoZ mode, leave the multimeter for 1 minute before using it
again.
11.6 Taking current measurements
Never exceed the maximum permitted input values. Never touch circuits or
parts of circuits when they may contain voltages greater than 33 V/ACrms or
70 V/DC! Danger to life!
The voltage in the measured circuit must not exceed 1000 V.
Measurements greater than 10 A must only be made for a maximum of 10 sec-
onds in 10-minute intervals.
Always start the current measurement using the largest measurement range,
and then switch to a smaller range if necessary. Always disconnect the circuit
before connecting the multimeter and changing the measurement range. All
current measurement ranges are protected against overload.
Do not measure any currents above 10 A in the A range or currents above
600 mA in the mA/μA range, as this will trigger the fuses.
Current measurements should be made as quickly as possible. Avoid taking
measurements for prolonged periods.
An optical and acoustic alarm is triggered when the measurement range is
exceeded.
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