RIGOL
Service Guide for DM3000 Series
Max. Input: The DC + AC current peak value <300% of the range. The RMS
current including DC current <10A.
Shunt Resistor: 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Frequency and Period
Measurement Method: Reciprocal-counting technique. AC-coupled input using the ac
voltage measurement function.
Input Impedance (Voltage Signal):1MΩ ± 2%, in parallel with <100pF
Shunt Resistor (Current Signal): 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: 750VRMS all ranges;
Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Capacitance
Measurement Method: Current input with measurement of resulting ramp.
Connection Type: 2-wire
Triggering and Memory
Samples per Trigger: 1 to 2,000,000
Trigger Delay: 0 to 3600 sec
Input Level: TTL compatible (High level when left trigger input open)
Trigger Condition: Selectable Rising, Falling, Low-level, High-level.
Input Impendence: >20kΩ, in parallel with 400pF, AC-coupled
Delay: <1μs
Min Pulsewidth: 1μs
VMC Output:
Level: TTL compatible (Input to ≥ 1kΩ load)
Output Polarity: Selectable Positive, Negative
Output Impendence: 200Ω, typical
Nonvolatile Memory: 512K readings
Volatile Memory: 2M readings
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