The Fluke 190-504-III Color ScopeMeter is a four-channel, 500 MHz handheld oscilloscope integrating digital oscilloscope, multimeter, and paperless recorder functionality into a single battery-powered field instrument. All four inputs are fully floating and independently isolated, enabling safe measurements across mixed circuits with different ground references. The unit withstands up to 1000 V and delivers 0.7 ns rise time with maximum real-time sample rates of 5 GS/s (single channel), 2.5 GS/s (two channels), or 1.25 GS/s (four channels).
Technical Specifications
Oscilloscope Core
• Bandwidth: 500 MHz
• Channels: 4 (all fully isolated)
• Maximum input voltage: 1000 V
• Rise time: 0.7 ns
• Vertical resolution: 8 bit
• Maximum real-time sample rates: 5 GS/s (1 ch), 2.5 GS/s (2 ch), 1.25 GS/s (4 ch)
• Input sensitivity: 2 mV to 100 V/div (1:1); 20 mV to 1000 V/div (10:1 probe); 200 mV to 10 kV/div (100:1 probe)
• Measurement accuracy (4 s to 10 μs/div): ±(1.5% + 6 counts) at 5 mV/div to 100 V/div; ±(1.5% + 10 counts) at 2 mV/div
• Bandwidth limiters: 20 MHz, 10 kHz
• Deep memory: 10,000 points per trace (Scope mode); 30,000 points per input channel (ScopeRecord mode)
Analysis & Recording
• Connect-and-View™ triggering for automatic waveform display
• TrendPlot™ paperless recorder: up to 11 days of continuous recording
• FFT frequency spectrum analysis
• Waveform functions: compare, pass/fail testing, automatic measurements, cursor analysis
• Screen capture and replay: 100 screens
Multimeter
• 5000 count DMM
• Functions: Vdc, Vac, Vac+dc, resistance, continuity, diode test
– Key Features
• Four fully isolated, floating input channels eliminate ground-loop hazards
• Input coupling options: AC or DC with ground level indicator
• AC/DC coupling with selectable bandwidth limiting reduces noise in measurement-critical applications
– Connectivity
• USB-A port for Wi-Fi adapter connection
• Mini-USB-B port for PC remote control and data transfer via FlukeView-2 software
• Wi-Fi and USB data transfer for archiving and analysis
– Typical Applications
Industrial troubleshooting, field service testing, mixed-signal circuit analysis, long-term monitoring for intermittent fault detection.
