Agilent Technologies U1253B User Manual download pdf (Page 4)

DC Specications

[1] Input impedance: Refer to Table A on page 9.

[3] The accuracy of 500 Ω and 5 kΩ is speciﬁed after NULL function, which is used to subtract the test lead resistance and the thermal effect.

[4] For the range of 50 MΩ and 500 MΩ, the R.H. is speciﬁed for <60%.

[5] The accuracy is speciﬁed for <50 nS and after NULL function with open test lead.

[6] Always use the NULL function to zero out thermal effect with open test lead before measuring the signal. If the NULL function is not used,

an additional 20 counts needs to be added to the DC current accuracy. Thermal effect could occur due to the following:

– Wrong operation to measure the high voltage of 50 V ~ 1000 V for resistance, diode, and mV measurements.

– After battery-charging has completed.

– After measuring a current greater than 440 mA, it is suggested that the meter be left to cool down for twice the measuring time used.

[7] Current can be measured up to 10 A continuously. An additional 0.5% needs to be added to the speciﬁed accuracy if the signal measured

is in the range of 10 A~20 A for 30 seconds maximum. After measuring a current of > 10 A, leave the meter to cool down for twice the

measuring time used before application of low current measurement.

[8] Maximum open voltage: <+ 4.2 V.

Function Range Resolution Test Current/

Burden Voltage

Accuracy ± (% of reading + No. of Least Signicant Digit)

U1251B U1252B/U1253B

Voltage

[1]

50.000 mV 0.001 mV – 0.05 + 50

[2]

0.05 + 50

[2]

500.00 mV 0.01 mV – 0.03 + 5 0.025 + 5

1000.0 mV 0.1 mV –

5.0000 V 0.0001 V –

50.000 V 0.001 V –

500.00 V 0.01 V – 0.03 + 5

1000.0 V 0.1 V –

Resistance

[8]

500.00 Ω

[3]

0.01 Ω 1.04 mA 0.08 +10 0.05 + 10

5.0000 kΩ

[3]

0.0001 kΩ 416 µA 0.08 + 5 0.05 + 5

50.000 kΩ 0.001 kΩ 41.2 µA

500.00 kΩ 0.01 kΩ 4.12 µA

5.0000 MΩ 0.0001 MΩ 375 nA 0.2 + 5 0.15 +5

50.000 MΩ

[4]

0.001 MΩ 187 nA 1 + 10 1 + 5

500.00 MΩ

[4]

0.01 MΩ 187 nA N/A 3+10 < 200 MΩ / 8+10 > 200 MΩ

500.00 nS

[5]

0.01 nS 187 nA 1 + 20 1 + 10

Current 500.00 µA 0.01 µA 0.06 V (100 Ω) 0.1 + 5

[6]

0.05 + 5

[6]

5000.0 µA 0.1 µA 0.6 V (100 Ω)

50.000 mA 0.001 mA 0.09 V (1 Ω) 0.2 + 5

[6]

0.15 + 5

[6]

440.00 mA 0.01 mA 0.9 V (1 Ω)

5.0000 A 0.0001 A 0.2 V (0.01 Ω) 0.3 + 10 0.3 + 10

10.000 A

[7]

0.001 A 0.4 V (0.01 Ω) 0.3 + 5

Diode Test

[8]

– 0.1 mV 1.04 mA 0.05 + 5

1 2 3 4 5 6 7 8 9 ... 14 15

Comments to this Manuals

No comments

Agilent Technologies U1253B User Manual Page 4

Comments to this Manuals

Related products and manuals for Multimeters Agilent Technologies U1253B