The Fluke PM 3380B is a 100 MHz, 2-channel CombiScope that integrates analog and digital storage oscilloscope functionality in a single instrument. Engineered for precision electronics testing and troubleshooting, it delivers dual-mode operation—switching between analog and digital displays to suit different signal conditions and analysis requirements. The instrument combines a bright display, advanced triggering architecture, and versatile measurement capabilities to support detailed waveform characterization and fault isolation.
Technical Specifications
Bandwidth & Sampling
• 100 MHz bandwidth
• Real-time sampling: 200 MS/s (single channel), 100 MS/s (dual channel)
• Equivalent-time sampling: Up to 10 GS/s on repetitive signals
• Peak-detect mode captures transients as narrow as 5 ns
Vertical System
• 2 analog input channels; 1 MΩ ± 1% || 15 pF ± 3 pF input impedance
• Vertical range: 2 mV/div to 5 V/div (1-2-5 sequence, full bandwidth)
• Calibrated vernier: 2 mV/div to 12.5 V/div
• Maximum input voltage: 300 V CAT II
• 8-bit ADC resolution; 16-bit memory resolution
• Accuracy (x1 magnification): ± 1% of full scale within central 8 horizontal and 6 vertical divisions
Horizontal System & Memory
• Main timebase: 0.5 s/div to 50 ns/div (1-2-5 sequence)
• Delayed timebase: 0.5 ms/div to 50 ns/div
• Fastest sweep speed (x10 magnification): 5 ns/div
• Continuously variable timebase: 1 µs/div to 500 ms/div in 1 µs increments
• Roll mode: 200 s/div to 50 ms/div
• Acquisition memory: 8K samples per trace, expandable to 32K
• Trace storage: 40 waveforms standard; up to 204 traces (512 samples each) with optional expansion
Triggering
• Trigger modes: Auto free run, Triggered, Single
• Trigger types: Edge, TV (including HDTV and TV line selection), Pattern, State, Glitch (2 ns)
• Trigger sources: CH1, CH2, External, Line
• Trigger coupling: DC, AC (<10 Hz), LF-reject (30 kHz), HF-reject (30 kHz)
• Trigger level: ± 8 div or automatic within signal peak-peak amplitude
• Event delay, pre-triggering, and post-triggering capabilities
Measurements & Display
• Automated voltmeter and time measurement functions
• Cursor measurements: Horizontal, Vertical, Both
• Vertical readout: dV, V1 to ground, V2 to ground, Ratio
• Horizontal readout: dT, 1/dT (Hz), Ratio, Phase
• Cursor measurement accuracy: ± 1% of full scale
• Probe-operated "Touch Hold and Measure" function displays VDC, VRMS, Vpk-pk, and frequency
– Key Features
• Dual-mode operation switches between analog and digital storage displays
• Bright display for extended observation sessions
• Peak-detect mode isolates narrow transient events
• Segmented memory for acquisition and reference storage
• Flexible trigger coupling rejects interference across multiple frequency bands
– Typical Applications
• Electronics design verification and signal characterization
• Power supply and switching circuit analysis
• Video signal troubleshooting (HDTV and standard TV line triggering)
• Transient and glitch detection
• Repetitive waveform analysis and comparison
– Compatibility & Integration
External trigger input allows synchronization with external signal sources. Standard and optional memory configurations support various trace storage requirements for post-acquisition analysis and documentation.
