Table 8-1 Dc Mv/Voltage Specifications; Input Specifications - Agilent Technologies U1401B User's Manual And Service Manual

Input Specifications

DC specifications

Table 8-1 DC mV/voltage specifications

Function
[1]
DC mV/voltage
[1]
Input impedance: 10 MΩ (nominal) for the range of 5 V and above, and 1 GΩ (nominal) for the 50/500 mV range.
[2]
The accuracy could be improved to 0.05% + 5. Always use the relative function to offset the thermal effect (short the test
leads) before measuring the signal.
U1401B User's and Service Guide
The accuracy is given as ± (% of reading + counts of least
significant digit) at 23 °C ± 5 °C, with relative humidity less
than 80% R.H., and warmed up for at least five minutes.
Without warming up, an additional five counts of LSD will
have to be added to the accuracy.
Range Resolution
1 μV
50 mV
10 μV
500 mV
5 V 0.1 mV
50 V 1 mV
250 V 10 mV
Accuracy Overload protection
[2]
0.05% + 50
0.03% + 5
Specifications 8
250 Vrms
147