Fluke PM 3390A Autoranging CombiScope, 200 MHz, 2-Channel

The Fluke PM 3390A Autoranging CombiScope is a dual-channel, 200 MHz instrument that merges oscilloscope and digital multimeter capabilities into a single benchtop unit. Engineered for field technicians and service engineers, it delivers real-time waveform capture with digital storage, automatic setup, and precision numerical measurements - eliminating the need to carry separate instruments.

Technical Specifications

• Bandwidth: 200 MHz


• Channels: 2 analog inputs


• Sample Rate (Max): 0.2 GS/s


• Memory Depth: 32K samples (expandable)


• Timebase: Continuously variable down to 1 µs/div in both analog and digital storage modes


• Input Impedance: 1 MΩ ± 1% // 25 pF ± 2 pF


• Maximum Input Voltage: ±150 VRMS (1 MΩ position, CAT II)


• Measurement Accuracy: ±1% of full scale within central 8 horizontal and 6 vertical divisions (magnification ×1)

Key Features

• Dual Operating Modes: Button-selectable analog or digital storage oscilloscope operation optimized for different signal conditions


• Auto Setup: Automatically configures channel parameters, timebase settings, and trigger conditions - including external trigger input


• Advanced Triggering: Edge and slope selection; pattern/glitch detection up to 150 MHz; 2 ns minimum present time detection


• Cursor Measurements: Horizontal and vertical cursors for manual waveform analysis


• Measurement Functions: dV, V1-to-ground, V2-to-ground, voltage ratio; dT, frequency (1/dT in Hz), phase ratio


• Integrated DMM: Combined multimeter functionality within single chassis

Typical Applications Field service and troubleshooting of analog and digital circuits; signal integrity verification; equipment commissioning and maintenance; educational laboratory use.

Compatibility & Integration

• RS232 Interface: External computer control


• GPIB/IEEE-488.2: Automatic test equipment integration and remote command operation