SIGLENT TECHNOLOGIES SDM3055 Series User Manual

SDM3055 Series Digital Multimeter User Manual
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Loading Errors (AC Voltage)
In the AC Voltage function, the input of SDM3055 appears as a 1MΩ resistance in parallel with 100pF
of capacitance. The test lead that you use to connect signals to the Multimeter will also add additional
capacitance and loading. The approximate input resistances of the Multimeter at different frequencies
are listed in the following table.
Table 4-2 Approximate Input Resistances at Different Frequencies
Input Frequency
Input Resistance
100Hz
1MΩ
1kHz
850kΩ
10kHz
160kΩ
100kHz
16kΩ
For low frequencies:
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󰇛

󰇜





 
 
For high frequencies:
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󰇛

󰇜
󰇩


 
󰇛
   

 

󰇜
 󰇪  
F: input frequency
Rs: source resistance
Cm: input capacitance (100pF) plus test lead capacitance

SIGLENT TECHNOLOGIES SDM3055 Series Specifications

General

Brand	SIGLENT TECHNOLOGIES
Model	SDM3055 Series
Category	Multimeter
Language	English