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User's Manual
Load Error (AC-Voltage)
When using the AC voltage measurement function, the UT8806E's input impedance is a 1 MΩ
resistor in parallel with a 100 pF capacitor. The multimeter test leads also introduce some
capacitance and load. The approximate input resistance of the multimeter at various
frequencies, as shown in Table 3-2.
Table 0-36 Resistance in Different Frequency
When use low-frequency measurement
Load error (%)
When use high-frequency measurement additional error
Load error (%)
F: input frequency
Rs: signal internal resistance
Cm: input capacitance (100pF) plus the capacitance on test lead
Instruments.uni-trend.com
Input Frequency
100Hz
1kHz
10kHz
100kHz
Output Frequency
1MΩ
850kΩ
160kΩ
16kΩ
UT8806E Desktop Digital Multimeter
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