Datasheet

16
Electrical Specifications
U1271A and U1272A frequency sensitivity for voltage measurements
1, 2, 3
Input range
Minimum sensitivity (RMS sine wave) Trigger level for DC coupling
15 Hz to
100 kHz
0.5 Hz to
200 kHz
Up to
1 MHz
0.5 Hz to 200 kHz
U1271A U1272A
30 mV 3 mV 3 mV — — 5 mV
300 mV 6 mV 8 mV 40 mV 10 mV 15 mV
3 V 0.12 V 0.2 V 0.4 V 0.15 V 0.15 V
30 V 0.6 V 0.8 V 2.6 V 1.5 V 1.5 V
300 V 6 V 8 V @ < 100 kHz — 9 V @ < 100 kHz 9 V @ < 100 kHz
1000 V 50 V 50 V @ < 100 kHz — 90 V @ < 100 kHz 90 V @ < 100 kHz
1. Maximum input for specified accuracy, refer to “AC specifications” on page 11.
2. 30 mV range applicable for U1272A only.
3. 200 kHz to 1 MHz range applicable for U1272A only.
U1273A/U1273AX sensitivity for voltage measurements
4
Input range
Frequency sensitivity and trigger level
Minimum sensitivity (RMS sine wave) Trigger level for DC coupling
Maximum input for specified
accuracy, refer to AC voltage
15 Hz to
100 kHz
0.5 Hz to
200 kHz
Up to
1 MHz
0.5 Hz to 200 kHz
30 mV 3 mV 3 mV — 5 mV
300 mV 7 mV 8 mV 38 mV 15 mV
3 V 0.12 V 0.12 V 0.48 V 0.15 V
30 V 0.8 V 0.8 V 3.5 V 1.5 V
300 V 6.7 V 8 V < 100 kHz — 11 V < 100 kHz
1000 V 67 V 67 V < 100 kHz — 110 V < 100 kHz
4. Maximum input for specified accuracy, refer to “AC specifications” on page 12.
Frequency sensitivity for current measurements
5
Input range
Minimum sensitivity (RMS sine wave)
2 Hz to 30 kHz
U1271A/U1272A U1273A/U1273AX
300 µA 100 µA 70 μA
3000 µA 70 µA 120 μA
30 mA 1.2 mA 1.2 mA
300 mA 12 mA 12 mA
3 A 0.12 A 0.12 A
10 A 1.2 A 1.2 A
5. Maximum input for specified accuracy, refer to “AC specifications” on page 11 and 12.