VOLTCRAFT VC190 Mode D'emploi page 55

i) Frequency / duty ratio measurement
Range
10.00 Hz - 1.00 MHz
0.1 % - 99.9 %
• Overload protection: 600 V
• Input amplitude a: (DC level = 0)
≤100 kHz: 200 mVrms ≤ a ≤ 30 Vrms
>100 kHz - 1 MHz: 600 mVrms ≤ a ≤ 30 Vrms
• Duty ratio measurement is applicable to square waves with frequency ≤10kHz.
1 Vpp ≤ Input amplitude ≤ 30 Vpp.
Frequency ≤ 1 kHz, duty ratio: 10.0 % to 95.0 %.
Frequency > 1 kHz, duty ratio: 30.0 % to 70.0 %
j) DC current measurement
Range
600.0 μA
μA
6000 μA
60.00 mA
mA
600.0 mA
6.000 A
A
10.00 A
• When the measured current is >5 A, each measurement time should be ≤30 s and the rest interval should be
≥15 minutes.
• Overload protection:
- F1 Fuse: μA mA range, ø6 x 32 mm, 0.6 A H600 V FF(CE)
- F2 Fuse: 10A range, ø6 x 25 mm, 10 A H600 V FF (CE)
Resolution
0.01 Hz - 0.001 MHz
0.1 %
Resolution Accuracy
0.1 μA
1 μA
± (1.0 % + 4)
10 μA
0.1 mA
1 mA ± (1.3 % + 4)
10 mA ± (1.5 % + 6)
Accuracy
± (0.1 % + 6)
± (3 % + 6)
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