These new handheld oscilloscopes are the first to be safety-rated for CAT III 1000 V and CAT IV 600 V environments. The four input channels are completely isolated from each other for performing floating differential measurements, a key feature for troubleshooting three-phase electronic devices, such as variable frequency drives. The Fluke ScopeMeter's chassis is isolated from the environment, with no cooling slots or fans exposing the instrument. It is IP-51 rated, dustproof and splashproof, making it rugged enough for safe use in factories and installations. While most high-performance oscilloscopes are not designed to withstand harsh and dirty environments, the ScopeMeter has a rugged build to deliver accurate results where ordinary handheld oscilloscopes dare not venture.
The Fluke 190 II Series addresses the pressing need for portable, four-channel oscilloscopes in industrial environments. Electronic systems are increasingly used in solar and wind power generation to maximize efficiency or reduce energy consumption, especially in rugged electromechanical applications. With the new Fluke 190 II Series ScopeMeters, users will see more and be able to fix more thanks to the four channels.
Its fast sampling rate, up to 2.5 GS/s and 400 picosecond resolution, helps users capture electrical noise and other disturbances to accurately diagnose the problem. With 100 MHz and 200 MHz models, these oscilloscopes offer the bandwidth needed to meet current and future requirements. Thanks to four channels, users can simultaneously inspect input signals, output signals, control loops, or safety interlocks to troubleshoot issues such as:
• Signal amplitude or shape variations, noise, or disturbances induced through critical circuit nodes
• Signal synchronization and timing problems
• Attenuation, jitter, or drift resulting from impedance problems or environmental impacts.
The four channels are indispensable for testing variable frequency drives and power electronic inverters used in sustainable energy generation and transportation applications. Users can:
• View and measure harmonics, transients, and loads in three-phase electrical systems
• Troubleshoot DC-to-AC converters by identifying faults in insulated-gate bipolar transistors (IGBTs) and control circuits
• View and measure pulse-width modulation (PWM) waveforms and check for reflections and transients
These new tools are comfortable and easy to use. With new high-performance lithium-ion batteries, the Series II ScopeMeters operate for up to seven hours. The external charger and easily accessible battery compartment cover allow for convenient battery changes and extended operating time. Two USB ports, electrically isolated from the measurement input circuitry, enable waveform capture and sharing. Users can easily store data on a USB memory device or connect the oscilloscope to a PC via the USB port and transfer waveforms or images for data analysis or archiving.
