Fluke 190-204-III Cal Portable Oscilloscope 200mhz 4CH

Product Description

The FLUKE 190-204-III CAL is a portable 4-channel oscilloscope designed for field and bench diagnostic work across electrical, HVAC, and industrial control applications. It operates at a 200 MHz bandwidth and features an LCD display, making it well suited for technicians who need waveform analysis away from a fixed lab setup. Vertical deflection ranges from 2 mV/div to 100 mV/div, giving it flexibility across both low-level signal work and higher-amplitude measurements. Licensed electricians, industrial technicians, and advanced HVAC-R technicians who service variable-frequency drives, ECM motors, or low-voltage control circuits are the primary installers and users of this instrument.

This oscilloscope is built for portable use in residential, commercial, and light industrial environments. It is appropriate for diagnosing waveform distortion on motor drives, verifying signal integrity on control boards, and troubleshooting low-voltage communication wiring. The 4-channel configuration allows simultaneous monitoring of multiple signals, which is particularly useful when tracing phase relationships or comparing input versus output on a control circuit. The CAL designation indicates a factory-calibrated unit, making it suitable for applications where measurement traceability is required.

Key Features

• 200 MHz bandwidth supports accurate capture of fast-switching signals on drives and control circuits
• 4 independent channels allow simultaneous multi-signal waveform comparison
• Vertical deflection range of 2 mV/div to 100 mV/div covers both sensitive low-level and higher-amplitude signals
• LCD display provides clear waveform visualization in the field
• Portable form factor designed for use outside of a fixed lab or bench environment
• Factory calibration (CAL) supports measurement traceability requirements

Compatibility

Designed as a portable oscilloscope for general electrical and electronic diagnostic use across field service and light industrial applications.

Installation Notes

This instrument is typically operated by licensed electricians, industrial technicians, or advanced HVAC-R technicians. Before connecting probe leads to any live circuit, verify the voltage and category rating of the probes against the circuit under test. Always follow NFPA 70E safe work practices when accessing energized electrical panels or drive enclosures. Do not exceed the rated input voltage of the oscilloscope or its probes.