Specifications

Chapter 1 Specifications RIGOL
Service Guide for DM3068
1-11
1. 4 Capacitance Characteristics
Accuracy Specifications: ± (% of reading + % of range)
[1][2]
Function
Range
[2]
Test Current
1Year
T
CAL
℃±5℃
Temperature Coefficient
0℃ to (T
CAL
℃-5℃)
(T
CAL
℃+5℃) to 50℃
Capacitance
2.000nF
200nA
2 + 2.5
0.05+0.05
20.00nF
2uA
1 + 0.3
0.05+0.01
200.0nF
10uA
1 + 0.3
0.01+0.01
2.000uF
100uA
1 + 0.3
0.01+0.01
20.00uF
1mA
1 + 0.3
0.01+0.01
200.0uF
1mA
1 + 0.3
0.01+0.01
2.000mF
1mA
1 + 0.3
0.01+0.01
20.00mF
1mA
1 + 0.3
0.01+0.01
100.0mF
1mA
3 + 0.2
0.05+0.02
[1]
Specifications are for 90 minutes warm–up and using REL operation. Additional errors may be caused by non–film capacitors.
[2]
Specifications are the 1% to 110% of range on 2nF range and 10% to 110% of range on all other ranges.
Measuring Characteristics
Capacitance Measurement
Measurement Method
Apply constant current into the capacitance, and measure the voltage changing rate.
Connection Type
2-wire
Measurement Considerations
Since small capacitance measurements are susceptible to the external noise, shielding inputs from external noise pickup is critical for minimizing
measurement errors.