Technical data

Specifications 8
U1401A User’s and Service Guide 153
1 ms peak hold specifications
Resistance specifications
The following resistance specifications are valid if the
maximum open voltage is less than +4.8 V. For continuity
test, the instrument will beep when the resistance is less
than 10.00
Ω.
[1]
The accuracy of 500 Ω and 5 kΩ is specified after applying the relative function, which is used to offset the test lead
resistance and the thermal effect.
[2]
For the 50 MΩ range, the R.H. is specified for <60%.
Table 8 - 13 Peak hold specifications
Signal width Accuracy for DC mV/voltage/current
Single event >1 ms 2% + 400 for all ranges
Table 8-14 Resistance specifications
Range Resolution Accuracy
Minimum input
current Overload protection
500 Ω
[1]
0.01 Ω 0.15% + 8 0.45 mA 250 V rms
5 kΩ
[1]
0.1 Ω 0.15% + 5 0.45 mA
50 kΩ 1 Ω 45 μA
500 kΩ 10 Ω 4.5 μA
5 MΩ 0.1 kΩ 450 nA
50 MΩ
[2]
1 kΩ 1% + 8 45 nA