The Fluke ScopeMeter 190 series is a handheld, four-channel digital oscilloscope for viewing electrical signals with a 999-count multimeter mode for measuring AC and DC voltage to 1,000V, AC/DC voltage to 1,000V true RMS, frequency to full bandwidth, and duty cycle from 4% to 98%. It can also measure power for single- and three-phase systems, displaying the total power (watts), apparent power (VA), reactive power (VAR), and the power factor (PF) to determine how efficiently an installation uses power. The oscilloscope has a real-time sample rate of 1.25GS/s for the 100MHz model and 2.5GS/s for the 200MHz model, and a record length of 10,000 points per channel for acquiring detailed waveforms. A zoom function magnifies waveforms up to x100, three math functions—add, subtract, and multiply—plus FFT (fast fourier transform), and automatic and cursor measurements allow an in-depth analysis of waveforms. Edge, pulse width, video, and N-cycle (burst) triggers allow isolation of specific signals. The oscilloscope's advanced automatic triggering recognizes signal patterns and automatically optimizes triggering, timebase and amplitude settings. To aid debugging, the pass/fail testing compares a live waveform to a reference waveform and can be set to store either waveforms that match (pass) or do not match (fail) the reference waveform. The relative function allows a measurement to be set as a reference value and displays subsequent measurements as a positive or negative deviation from that value, and the data-hold function freezes a reading or waveform on the display. The 100 most recent screens are automatically stored in the unit's internal memory, and can be accessed by the replay function. The oscilloscope has a recorder that captures from 6 seconds to 48 hours of waveforms and stores up to 30,000 data points per channel. Its trend plot function graphs the minimum, maximum, and average readings over time from 60 minutes at 5 seconds per division to 22 days at 30 minutes per division. Additional specifications include a rise time of 3.5ns for the 100MHz models and 1.7ns for the 200MHz models, and various triggering features. The unit has a 126.8 x 88.4 mm (4.99 x 3.48 inches) color LCD with a resolution of 320 x 240 pixels for viewing waveforms and measurements, and an LED backlight for visibility in low light. It can display up to four readings or waveforms simultaneously. A multimeter is an electrical testing tool for measuring multiple properties of an electrical circuit to verify proper operation or diagnose problems.

The oscilloscope has a USB host port for storing data on a 2GB-maximum flash drive and a USB device port for connecting to a compatible PC for storing and analyzing data with the included demonstration version of FlukeView software (a full version is included for models with kit). The software is compatible with Microsoft Windows 2000 and beyond operating systems. The unit operates on a rechargeable lithium ion battery pack or a 120VAC, 50/60Hz adapter/charger (both included). When operating on battery power, it automatically shuts down after 30 minutes of non-use to conserve battery life and has a low-battery indicator that signals when the battery needs recharging. It meets European Standard (EN) and International Electrotechnical Commission (IEC) 61010-1:2001 and 61010-031:2002+A1:2008, American National Standards Institute and International Society of Automation (ANSI/ISA) 61010-1 (82.02.01), and CAN/CSA (Canadian Standards Association) C22.2 61010-1-04 safety standards, and is rated for CAT (category) III installations to 1,000V, which covers equipment in fixed installations, such as switches in the fixed installation and some industrial equipment that is permanently connected to the fixed installation, and CAT IV installations to 600V, which covers equipment at the origin of the installation, such as electricity meters and primary over-current protection equipment. It has European Conformity (CE) marking and is Ingress Protection certified IP51 for dust and drips. It comes with four voltage probe sets, FlukeView software, a USB interface cable, a rechargeable lithium ion battery pack, an AC adapter/battery charger, and a user manual. The Fluke ScopeMeter 190 series is available with and without the SCC290 kit. The kit includes an activation key that unlocks the full-version of FlukeView software for storing and analyzing data, and a hard carrying case for storing the unit and its accessories.

Specifications

H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Oscilloscopes are electrical testing devices used to verify the functionality of equipment that generates an electrical signal. Oscilloscopes measure the voltage of an electrical signal over time, and display the measurement as a waveform in a visual graph. The waveform shows the sweeps (or refresh) of voltage on a vertical (Y) axis, and the time on a horizontal (X) axis. Details of a waveform demonstrate the signal over time. Most oscilloscopes have two or four channels for inputting a signal. Some digital oscilloscopes offer more than four channels, allowing channels to be dedicated to specific signals and applications. Bandwidth is the maximum frequency of a signal that an oscilloscope can capture. A constant image will display if a signal is shown at a high frequency. Oscilloscopes may be analog, digital, or mixed signal. An analog oscilloscope directly displays an input signal as a continuous waveform, typically in a luminous phosphor on a cathode ray tube (CRT). A digital oscilloscope converts the input signal into a digital format and reassembles the waveform for display, typically on an LCD. A mixed signal oscilloscope (MSO) displays both analog and digital formats. Some oscilloscopes can display more than one channel and type of measurement simultaneously. Some oscilloscopes can capture waveform signals to memory, and recall them. They may provide real-time intensity grading, and may have the ability to adjust frequency of display. Oscilloscopes can be powered with batteries or electricity, or may have a built-in generator. They are commonly used for testing, measuring, and inspecting in science, engineering, telecommunications, automotive, and electronics applications.

Fluke Corporation manufactures electrical testing tools and software for industrial and commercial applications. The company, founded in 1948, is headquartered in Everett, WA.

What's in the Box?

• Fluke ScopeMeter 190 series handheld oscilloscope/multimeter
• (4) voltage probe sets
• FlukeView software (demonstration version for models without kit, full version for models with kit)
• USB interface cable
• Rechargeable lithium ion battery pack
• AC adapter/battery charger
• User manual
• Hard carrying case (for models with kit)