i) Frequency / duty ratio measurement
Range
Resolution
Accuracy
10.00 Hz - 10.00 MHz
0.01 Hz - 0.01 MHz
± (0.6 % + 5)
0.1 % - 99.9 %
0.1 %
± 2.5 %
• Overload protection: 600 V
• Input amplitude a: (DC level = 0)
≤100 kHz: 300 m Vrms≤a≤2 0Vrms
100 kHz - 1 MHz: 600 m Vrms≤a≤ 20Vrms
≥1 MHz - 10 MHz: 6 Vrms≤a≤3 0Vrms
• Duty ratio measurement is applicable to zero-crossing square waves with frequency
≤10kHz.
1 Vpp ≤ Input amplitude ≤ 30 Vpp.
Frequency ≤ 1 kHz, duty ratio: 10.0 % to 90.0 %.
Frequency > 1 kHz, duty ratio: 30.0 % to 70.0 %
j) DC current measurement
Range
Resolution
Accuracy
μA
400.0 μA
0.1 μA
± (1.0 % + 6)
4000 μA
1 μA
mA
40.00 mA
10 μA
400.0 mA
0.1 mA
A
4.000 A
1 mA
± (1.3 % + 4)
10.00 A
10 mA
± (1.5 % + 6)
• 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: Φ6×32 mm, FF 10 A, H 600 V, Breaking capacity:10 KA
- F2 Fuse: Φ5×20 mm, FF 400 mA H 600 V, Breaking capacity: 500 A min.
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