31
3. IMPLEMENTATION
FUNCTIONAL CHARACTERISTICS
3.1 Reference conditions
The functional characteristics mentioned in each of the
measurement functions are guaranteed in the following
reference ranges:
- Temperature: +23°C ± 3 K
- Humidity: 45% to 75% relative humidity
- Supply voltage: 8.5 V ± 0.5 V
- Frequency range of applied AC signal: 45 -65 Hz
- Peak factor of applied AC signal:
√
2
- Position of conductor in clamp jaws: centred.
- Conductor diameter:
≤
5 mm
- No external AC magnetic field
- No electrical field
3.2 Voltage measurements (V)
1. Connect the measurement leads to the instrument’s
terminals, complying with the polarities indicated: red lead
on the «+» terminal and black lead on the "COM" terminal.
2. Set the rotary switch to position "V ".
3. Connect the assembly to the voltage source to be
measured, making sure if possible that this voltage does
not exceed the maximum acceptable limits (see table
below).
Range switching and AC/DC selection are automatic.
Actuate the yellow key to force AC/DC or AC + DC selection
manually if necessary.
If the signal measured is > 45 V peak, the audio indication
is activated if the V-Live function is selected
(see § 3.11.11).
Display range
40 V
400 V
4.000 V
(1)
Measuring range
(2)
0.2 V to
40.0 V to
400 to 600 V
39.99 V
399.9 V
400 to 900 Vpeak
Accuracy
1% L +5 pt 1% L +2 pt
1% L +2 pt
Resolution
10 mV
0.1 V
1 V
Input impedance
1 M
Ω
Protection
600 V AC or DC
(1) In DC, the display indicates +OL
above +600 V and -OL
above -600 V (900 V in PEAK mode).
In AC and AC + DC, the display indicates OL over 600 Vrms
(900 V in PEAK mode).
(2) In AC if the value of the voltage measured is < 0.15 V the
display indicates 0.00.
For voltages
≥≥≥≥≥
600 V
DC
or rms, a repetitive beep of
the buzzer indicates that the measured voltage
is
higher than the unit’s guaranteed safety voltage.
