Rigol DM3068, Руководство по обслуживанию

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Chapter 1 Specifications RIGOL
Service Guide for DM3068
1-11
1. 4 Capacitance Characteristics
Accuracy Specifications: ± (% of r % 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.