Comtest Technologies, accredited southern African partner to Fluke – global leader in handheld electronic test and measurement equipment – has introduced the Fluke ScopeMeter® 190 Series II handheld portable oscilloscopes, the first four-channel scopes designed for harsh industrial environments.These new portable scopes are the first safety rated for CAT III 1000 V / CAT IV 600 V environments. The four input channels are fully isolated from each other to perform differential floating measurements, a critical consideration for troubleshooting fixed-installation three-phase power electronic devices like variable speed motor drives.
Fluke ScopeMeter chassis is sealed from the environment with no cooling slots or fans to expose the instrument. It carries the International Protection (IP) -51 dust and drip proof rating. It is robust enough to use safely on the factory floor as well as in the field. While most high-performance oscilloscopes are not designed to withstand dirty, harsh environment, the ScopeMeter 190 II delivers accurate results in abnormally trying conditions.
Fluke 190 Series II meets the growing need for four-channel portable oscilloscopes in industrial environments. Power electronics are used increasingly in solar and wind energy generation and to maximize efficiency or reduce power consumption especially in heavy-duty electro-mechanical applications. With the new Fluke 190 Series II ScopeMeter, users optimise measurements using all four channels.
The fast sampling rate, up to 2.5 GS/sec and 400 pico second resolution, helps users capture electrical noise and other disturbances to diagnose accurately. With100 MHz and 200 MHz models, it delivers the bandwidth required.
With four channels, users can inspect input signals, output signals, feedback loops, or safety interlocks simultaneously to solve problems like:
· Signal amplitude or shape variations, induced noise or disturbances across critical circuit nodes
· Signal timing measurements and synchronization issues
· Attenuation, fluctuation, drift as a result of impedance issues or environmental impacts
· Four channels are indispensable in testing variable speed motor drives and inverter power electronic technology used in green energy generation and transportation applications. Users can:
· View and measure harmonics, transients, and loads in three-phase power systems
· Troubleshoot DC to AC converters for faulty insulated-gate bipolar transistors (IGBT’s) and control circuits
· View and measure pulse width modulated waveforms (PWM) for reflections and transients
New, high-performance Li-ion battery technology keeps the Series II ScopeMeter at full power for up to seven hours. An external charger and easy-access battery door makes it simple to swap batteries and extend usage. Two USB ports, electrically isolated from measurement input circuits, make it easy to capture and share waveforms. Users can conveniently store data to a USB memory device or easily connect to a PC via the USB port and transfer waveforms or screen images for data analysis or archive.