Agilent Technologies U1270 Series Manual de usuario descargar pdf (Pagina 8)

Electrical specifications

DC specifications for U1271A and U1272A

Function Range Resolution

Accuracy ±(% of reading +

counts of least significant digit)

Test current/

Burden voltage

U1271A U1272A

Voltage

[1]

30 mV 0.001 mV - 0.05 + 20

300 mV 0.01 mV 0.05 + 5 0.05 + 5 -

3 V 0.0001 V 0.05 + 5 0.05 + 5 -

30 V 0.001 V 0.05 + 2 0.05 + 2 -

300 V 0.01 V 0.05 + 2 0.05 + 2 -

1000 V 0.1 V 0.05 + 2 0.05 + 2 -

LOW

(low input impedance)

enabled, applicable for 1000 V

range and resolution only.

- 1 + 20

Resistance

[2]

30 Ω 0.001 Ω - 0.2 + 10 0.65 mA

300 Ω 0.01 Ω 0.2 + 5 0.2 + 5 0.65 mA

3 kΩ 0.0001 kΩ 0.2 + 5 0.2 + 5 65 mA

30 kΩ 0.001 kΩ 0.2 + 5 0.2 + 5 6.5 mA

300 kΩ 0.01 kΩ 0.5 + 5 0.5 + 5 0.65 mA

3 MΩ 0.0001 MΩ 0.6 + 5 0.6 + 5 93 nA//10 MΩ

30 MΩ 0.001 MΩ 1.2 + 5 1.2 + 5 93 nA//10 MΩ

100 MΩ - 2.0 +10 - 93 nA//10 MΩ

300 MΩ 0.01 MΩ -

2.0 % + 10 @ <100 MΩ

8.0 % + 10 @ >100 MΩ

93 nA//10 MΩ

300 nS 0.01 nS 1 + 10 1 + 10 93 nA//10 MΩ

Current

[3]

300 µA 0.01 µA 0.2 + 5 0.2 + 3 <0.04 V/ 100 Ω

3000 µA 0.1 µA 0.2 + 5 0.2 + 3 <0.4 V/ 100 Ω

30 mA 0.001 mA 0.2 + 5 0.2 + 3 <0.08 V/ 1 Ω

300 mA 0.01 mA 0.2 + 5 0.2 + 3 <1.00 V/ 1 Ω

3 A 0.0001 A 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 V/ 0.01 Ω

Diode Test

[4]

3 V 0.0001 V 0.5 + 5 0.5 + 5 Approximately 1 to 2 mA

Auto 0.0001 V - 0.5 + 5 Approximately 0.1 to 0.3 mA

1. Notes for voltage specifications:

• The accuracy of the 30 to 300 mV range is specified after the Null function is used to subtract the thermal effect (by shorting the test leads).

• For Z

LOW

measurements, autoranging is disabled and the multimeter’s range is set to 1000 volts in the manual ranging mode.

2. Notes for resistance specifications:

• Overload protection: 1000 Vrms for short circuits with <0.3 A current.

• Maximum open voltage is <+3.3 V

• Built-in buzzer beeps when the resistance measured is less than 25 Ω ± 10 Ω. The multimeter can capture intermittent measurements longer

than 1 ms.

• The accuracy of the 300 Ω to 3 kΩ range is specified after the Null function is used to subtract the test lead resistance and thermal effect (by

shorting the test leads).

• For the ranges of 30 MΩ and 100 MΩ, the RH is specified for <60%.

• The accuracy for ranges <50 nS is specified after the Null function is used on an open test lead.

• The temperature coefficient of the 100 MΩ and 300 MΩ range is 0.1 × (specified accuracy)/°C (from -20 °C to 18 °C or 28 °C to 55 °C)

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 23 24

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Agilent Technologies U1270 Series Manual de usuario Pagina 8

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