Datasheet

9
Electrical Specifications
DC specifications for U1271A, U1272A, U1273A and U1273AX
Function Range Resolution
Accuracy ± (% of reading +
counts of least significant digit)
Test current/
Burden voltage
U1271A U1272A U1273A/U1273AX
Voltage
1
30 mV 0.001 mV — 0.05 + 20 0.05 + 20 —
300 mV 0.01 mV 0.05 + 5 0.05 + 5 0.05 + 5 —
3 V 0.0001 V 0.05 + 5 0.05 + 5 0.05 + 5 —
30 V 0.001 V 0.05 + 2 0.05 + 2 0.05 + 2 —
300 V 0.01 V 0.05 + 2 0.05 + 2 0.05 + 2 —
1000 V 0.1 V 0.05 + 2 0.05 + 2 0.05 + 2 —
Z
LOW
(low
input
impedance)
enabled,
applicable
for 1000 V
range and
resolution
only
0.1 V — 1 + 20 1 + 20 —
Resistance
2
30 Ω 0.001 Ω — 0.2 + 10 0.2 + 10 0.65 mA
300 Ω 0.01 Ω 0.2 + 5 0.2 + 5 0.2 + 5 0.65 mA
3 kΩ 0.0001 kΩ 0.2 + 5 0.2 + 5 0.2 + 5 65 µA
30 kΩ 0.001 kΩ 0.2 + 5 0.2 + 5 0.2 + 5 6.5 µA
300 kΩ 0.01 kΩ 0.2 + 5 0.2 + 5 0.2 + 5 0.65 µA
3 MΩ 0.0001 MΩ 0.6 + 5 0.6 + 5 0.6 + 5 93 nA/10 MΩ
30 MΩ 0.001 MΩ 1.2 + 5 1.2 + 5 1.2 + 5 93 nA/10 MΩ
100 MΩ 0.01 MΩ 2.0 +10 — — 93 nA/10 MΩ
300 MΩ 0.01 MΩ —
2.0 + 10 @ < 100 MΩ
8.0 + 10 @ > 100 MΩ
2.0 + 10 @ < 100 MΩ
8.0 + 10 @ > 100 MΩ
93 nA/10 MΩ
300 nS 0.01 nS 1 + 10 1 + 10 1 + 10 93 nA/10 MΩ
Current
3
300 µA 0.01 µA 0.2 + 5 0.2 + 3 0.2 + 5 < 0.04 V/100 Ω
3000 µA 0.1 µA 0.2 + 5 0.2 + 3 0.2 + 5 < 0.4 V/100 Ω
30 mA 0.001 mA 0.2 + 5 0.2 + 3 0.2 + 5 < 0.08 V/1 Ω
300 mA 0.01 mA 0.2 + 5 0.2 + 3 0.2 + 5 < 1.00 V/1 Ω
3 A 0.0001 A 0.3 +10 0.3 +10 0.3 +10 < 0.1 V/0.01 Ω
10 A 0.001 A 0.3 +10 0.3 +10 0.3 +10 < 0.3 V/0.01 Ω
Diode Test
4
3 V 0.0001 V 0.5 + 5 0.5 + 5 0.5 + 5
Approximately
1 to 2 mA
Auto 0.0001 V — 0.5 + 5 0.5 + 5
Approximately
0.1 to 0.3 mA
See notes on next page.