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Specifications 8
Agilent U1251A/U1252A User’s and Service Guide 163
Input impedance
Table 7-19 Input Impedance
Function Range Input Impedance
DC Voltage
[1]
50.000 mV 10.00 MΩ
500.00 mV 10.00 MΩ
1000.0 mV 10.00 MΩ
5.0000 V 11.10 MΩ
50.000 V 10.10 MΩ
500.00 V 10.01 MΩ
1000.0 V 10.001 MΩ
AC Voltage
[2]
50.000 mV 10.00 MΩ
500.00 mV 10.00 MΩ
1000.0 mV 10.00 MΩ
5.0000 V 10.00 MΩ
50.000 V 10.00 MΩ
500.00 V 10.00 MΩ
1000.0 V 10.00 MΩ
AC + DC Voltage
[2]
50.000 mV 10.00 MΩ
500.00 mV 10.00 MΩ
1000.0 mV 10.00 MΩ
5.0000 V 11.10 MΩ // 10 MΩ
50.000 V 10.10 MΩ // 10 MΩ
500.00 V 10.01 MΩ // 10 MΩ
1000.0 V 10.001 MΩ // 10 MΩ
Notes for input impedance:
1 For 5 V to 1000 V range, the specified input impedance in parallel with 10 MΩ at dual display.
2 The specified input impedance (nominal) in parallel with <100 pF.