User`s guide

Characteristics and Specifications 4
Electrical Specifications
U1731C/U1732C/U1733C User’s Guide 85
Source impedance of capacitance measurement
Table 4 - 8 Source impedance of capacitance measurement
Range Typical source impedance
100 Hz 120 Hz 1 kHz 10 kHz 100 kHz
All models All models All models U1733C and
U1732C only
U1733C only
20 mF 100 Ω 100 Ω ---
2000 μF100 Ω 100 Ω 100 Ω --
200 μF100 Ω 100 Ω 100 Ω 100 Ω -
20 μF100 Ω 100 Ω 100 Ω 100 Ω 100 Ω
2000 nF 1 kΩ 1 kΩ 100 Ω 100 Ω 100 Ω
200 nF 10 kΩ 10 kΩ 1 kΩ 100 Ω 100 Ω
20 nF 100 kΩ 100 kΩ 10 kΩ 1 kΩ 100 Ω
2000 pF 100 kΩ 100 kΩ 100 kΩ 10 kΩ 1 kΩ
200 pF - - 100 kΩ 10 kΩ 1 kΩ
20 pF - - - 10 kΩ
[1]
1 kΩ
[1] This specification value is applicable for firmware versions 00.21 and above only. For firmware versions below 00.21, the im-
pedance value is set at 100 kΩ.