Agilent Technologies U1242B Manual do Utilizador descarregar pdf (Página 2)

FUNCTION RANGE RESOLUTION TEST CURRENT/

BURDEN VOLTAGE

ACCURACY ± (% of Reading + No. of Least Signiﬁcant Digit)

U1241A/U1241B U1242A/U1242B

VOLTAGE

[1]

1000.0 mV 0.1 mV – 0.09% + 5

10.000 V 0.001 V –

0.09% + 2

100.00 V 0.01 V –

1000.0 V 0.1 V – 0.15% + 5

CURRENT

1000.0 µA 0.1 µA

< 0.06 V (50 W)

0.1% + 3

10000 µA 1 µA

< 0.55 V (50 W)

0.1% + 3

100.00 mA 0.01 mA

< 0.18 V (0.5 W)

0.2% + 3

440.0 mA

[2]

0.1 mA

< 0.8 V (0.5 W)

0.5% + 3

10.000 A

[3]

0.001 A

< 0.4 V (0.01 W)

0.6% + 5

RESISTANCE

[4]

1000.0 W

[5]

0.1 W

0.5 mA 0.3% + 3

10.000 kW

[5]

0.001 kW

50 µA

100.00 kW 0.01 kW

4.91 µA

1000.0 kW 0.1 kW

447 nA

10.000 MW 0.001 MW

112 nA

0.8% + 3

100.00 MW

[6]

0.01 MW

112 nA

1.5% + 3

DIODE TEST

[7]

1 V 0.001 V approximately 0.5 mA 0.3% + 2

DC SPECIFICATIONS

[1] Input impedance: 10 MW (nominal).

[2] Current can be measured up to 440 mA continuously. An additional 0.2% needs to be added to the speciﬁed accuracy if the signal measured is in the range of

440 mA to 1100 mA for 30 seconds maximum. After measuring a current of > 440 mA, leave the meter to cool down for twice the measuring time used before

applying a low current measurement.

[3] Current can be measured up to 10 A continuously with a maximum operating temperature of 50 °C. An additional 0.3% needs to be added to the speciﬁed accuracy

if the signal measured is in the range of 10 A to 19.999 A for 15 seconds maximum. After measuring a current of > 10 A, leave the meter to cool down for 60 seconds

before applying a low current measurement.

[4] The maximum open voltage is < 2.8 V. For instant continuity, the built-in buzzer sounds when resistance is < 10.0 W.

[5] The accuracy of 1 kW and 10 kW is speciﬁed after Null function, which is used to substrate the test lead resistance and the thermal effect.

[6] For the range of 100 MW, the R.H. is speciﬁed for < 60%. The temperature coefﬁcient will be 0.15 times of speciﬁed accuracy as > 50 MW.

[7] Overload protection: 1000 V RMS for circuits < 0.3 A short circuit current. The built-in buzzer sounds when reading is approximately below 50 mV and audible single

tone for normal forward biased diode or semiconductor junction as 0.3 V ≤ Reading ≤ 0.8 V.

[8] Input impedance: 10 MW (nominal) in parallel with <100 pF, with overload protection of 1000 V RMS

[9] Crest factor ≤ 3. For non-sinusoidal waveforms with crest factor up to 3, add 2% reading + 2% full scale typical.

[10] Current can be measured from 50 mA to 440 mA continuously. An additional 0.2% needs to be added to the speciﬁed accuracy if the signal measured is in the range of

440 mA to 1100 mA for 30 seconds maximum. After measuring a current of > 440 mA, leave the meter to cool down for twice the measuring time used before

application of low current measurement.

[11] Current can be measured from 0.5 A up to 10 A continuously with a maximum operating temperature of 50 °C. An additional 0.3% needs to be added to the

speciﬁed accuracy if the signal measured is in the range of 10 A to 19.999 A for 15 seconds maximum. After measuring a current of >10 A, leave the meter to cool

down for 60 seconds before applying a low current measurement.

[12] AC voltage and AC current speciﬁcations are AC coupled. True R.M.S. Measurement is valid from 5 % of range to 100 % of range.

AC SPECIFICATIONS

FUNCTION RANGE RESOLUTION TEST CURRENT/

BURDEN VOLTAGE

ACCURACY ± (% of Reading + No. of Least Signiﬁcant Digit)

40 Hz to 500 Hz 500 Hz to 1 kHz 1 kHz to 2 kHz

AC VOLTAGE

[8][12]

TRUE RMS

1000.0 mV 0.1 mV –

1% + 5

2% + 5 –

10.000 V 0.001 V –

1% + 5

2% + 5

100.00 V 0.01 V –

1000.0 V 0.1 V –

–

AC Current

[9][12]

TRUE RMS

1000.0 µA 0.1 µA

< 0.06 V (50 W)

1% + 5 1.5% + 5 –

10000 µA 1 µA

< 0.55 V (50 W)

100.00 mA 0.01 mA

< 0.18 V (0.5 W)

440.0 mA

[10]

0.1 mA

< 0.8 V (0.5 W)

10.000 A

[11]

0.001 A

< 0.4 V (0.01 W)

1 2 3 4 5 6 7 ... 12 13

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Agilent Technologies U1242B Manual do Utilizador Página 2

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