Rigol MC3065 – DMM Module

The Rigol MC3065 is a 6½-digit DMM module engineered for integration into the M300 Series data acquisition and switch systems. It delivers precise electrical measurements across DC/AC voltage, DC/AC current, 2-wire and 4-wire resistance, frequency, period, and temperature—plus universal sensor signal measurement. The module integrates directly into the M300 mainframe without requiring a separate terminal block.

– Technical Specifications

Measurement Functions
• DC Voltage (DCV): Full range support
• AC Voltage (ACV): 200 mV to 300 V, true RMS, 3 Hz to 300 kHz
• DC Current (DCI): Full range support
• AC Current (ACI): 200 µA to 1 A, 3 Hz to 10 kHz
• Resistance: 2-wire and 4-wire modes, 200 Ω to 10 MΩ
• Frequency: 3 Hz to 1 kHz
• Period: Up to 1 MHz
• Temperature: RTD, thermistor, and thermocouple (Types B, E, J, K, N, R, S, T)
• Sensor Measurement: Arbitrary sensor signal acquisition

Performance
• Resolution: 6½ digits
• Input Protection: 300 V DC or 300 V RMS maximum on all ranges
• Input Impedance (DCV): 10 MΩ or >10 GΩ (200 mV–20 V ranges); 10 MΩ ±1% (200 V–300 V ranges)
• Input Offset Current: 50 pA at 25°C typical
• Common Mode Rejection Ratio: 140 dB at 1 kΩ unbalanced, ±300 V DC peak maximum
• Auto Zero: Available on 200 Ω, 2 kΩ, and 20 kΩ ranges; adds 0.0001% range + 2 µV error (DCV) and 2 mΩ error (resistance) with Auto Zero OFF

– Key Features

• High-resolution 6½-digit measurement capability for precision laboratory and automated test environments
• Integrated analog bus connection eliminates external terminal block requirements
• Comprehensive temperature measurement with multiple thermocouple types
• Offset compensation via Auto Zero on select resistance ranges
• Input clamping through 106 kΩ on lower voltage ranges for transient protection

– Typical Applications

• Automated electrical testing and validation
• Multi-parameter data acquisition systems
• Laboratory analysis requiring high-resolution measurements
• Temperature monitoring via thermocouple and RTD sensors

– Compatibility & Integration

The MC3065 modules into the Rigol M300 Series mainframe as a hot-swappable measurement plug-in, supporting modular system architecture for scalable test configurations.