Specifications 7
U1253B User’s and Service Guide 189
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.
Table 7- 1 8 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 || 10MΩ
1000.0 V 10.001 MΩ || 10MΩ