Fluke PM 3370A Autoranging CombiScope, 60 MHz, 2-Channel

The Fluke PM 3370A is a 60 MHz, 2-channel hybrid oscilloscope combining digital storage and analog measurement modes in a single instrument. Designed for electronics troubleshooting, signal analysis, and laboratory testing, it delivers 8-bit vertical resolution with sampling rates up to 20 MS/s per channel (interleaved) or 10 MS/s simultaneous. The autoranging capability automatically optimizes vertical and horizontal scales for clear waveform display across diverse test scenarios.

Technical Specifications

• Bandwidth: 60 MHz


• Channels: 2


• Vertical resolution (DSO): 8-bit


• Sampling rate: Up to 20 MS/s per channel (interleaved), 10 MS/s per channel (simultaneous)


• Record length: Up to 1024 points per channel


• Vertical sensitivity: 2 mV/div to 10 V/div (manual ranging)


• Vertical accuracy: ±3% of full scale


• Input impedance: 1 MΩ ±2% || 15 pF ±5 pF


• Maximum input voltage: 400 V (DC + peak AC) CAT II


• Trigger accuracy: ±1 div


• Timebase accuracy: ±0.005% ±50 ppm


• Sweep speed (analog): 0.5 s/div to 50 ns/div Display


• CRT display, 8 × 10 divisions


• Illuminated internal graticule


• Voltage and time cursors Power


• Input: 100–240 VAC ±10%, 50/60 Hz


• Consumption: Typically under 50 W

Key Features

• Dual-mode operation (DSO and analog)


• Input coupling: AC, DC, GND


• Trigger modes: Auto, Normal, Single Shot, Roll Mode


• Trigger types: Edge, Pulse Width, Video, Pattern


• Delayed sweep capability


• Waveform save/recall (DSO mode)


• Built-in self-test diagnostics


• Front panel rotary knobs and function buttons

Typical Applications Electronics repair and troubleshooting, real-time signal observation, educational laboratories, waveform analysis, and field service work requiring portable 2-channel measurement capability.

Compatibility & Integration Accepts standard passive oscilloscope probes (1×, 10× attenuation). Probe compensation output provided for calibration.