Agilent Technologies U1270 Series Bedienungsanleitung PDF herunterladen (Seite 11)

AC + DC specifications for U1272A

Function Range Resolution

Accuracy

45 Hz to

65 Hz

20 Hz to

2 kHz

1 kHz to

5 kHz

5 kHz to

20 kHz

to 100

kHz

True RMS

AC + DC

Voltage

[1]

30 mV 0.001 mV 0.7 + 40 0.8 + 45 1.1 + 45 1.1 + 60 3.6 + 60

300 mV 0.01 mV 0.7 + 25 0.8 + 30 1.1 + 30 1.1 + 45 3.6 + 45

3 V 0.0001 V 0.7 + 25 1.1 + 30 1.6 + 30 2.1 + 45 3.6 + 45

30 V 0.001 V 0.7 + 25 1.1 + 30 1.6 + 30 2.1 + 45 3.6 + 45

300 V 0.01 V 0.7 + 25 1.1 + 30 1.6 + 30 2.1 + 45 -

1000 V 0.1 V 0.7 + 25 1.1 + 30 1.6 + 30 - -

Function Range Resolution

Accuracy

Burden

voltage/

Shunt

45 Hz to

65 Hz

20 Hz to

2 kHz

True RMS

AC + DC

Current

[2]

300 µA 0.01 µA 0.8 + 30 1.1 + 30 <0.04 V/100 Ω

3000 µA 0.1 µA 0.8 + 30 1.1 + 30 <0.4 V/100 Ω

30 mA 0.001 mA 0.8 + 30 1.1 + 30 <0.08 V/1 Ω

300 mA 0.01 mA 0.8 + 30 1.1 + 30 <1.00 V/1 Ω

3A 0.0001 A 0.9 + 35 1.3 + 35 <0.1 V/0.01 Ω

10 A 0.001 A 0.9 + 35 1.3 + 35 <0.3 V/0.01 Ω

1. Notes for voltage specifications:

• Overload protection: 1000 Vrms. For millivolt measurements, 1000 Vrms for short circuits with <0.3 A current.

• Input impedance: 10 MΩ (nominal) in parallel with <100 pF.

• For 20 to 100 kHz accuracy: Three counts of the LSD per kHz of additional error is to be added for frequencies >20 kHz and signal inputs <10%

of range.

2. Notes for current specifications:

• Overload protection for 300 μA to 300 mA range: 0.44 A/1000 V; 10 × 35 mm 30 kA fast-acting fuse

• Overload protection for 3 A to 10 A range: 11 A/1000 V; 10 × 38 mm 30 kA fast-acting fuse

• Specification for 300 mA range: 440 mA continuous.

• Specification for 10 A range: 10 A continuous. Add 0.3% to the specified accuracy when measuring signals >10 to 20 A for 30 seconds

maximum. After measuring currents >10 A, cool down the multimeter for twice the duration of the measured time before proceeding with low

current measurements.

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