Built as an integrated multi-purpose tool for service, maintenance and installation (SMI) engineers, the 125/3S ScopeMeter features a 40 MHz oscilloscope, true-RMS DMM, and dual-input paperless recording into one fully functional unit. This instrument can measure power, harmonics, motor winding resistance and motor effective voltage from a variable frequency drive controller, working with many industrial networks including AS-I bus, CAN-bus, Profibus, Foundation Fieldbus and Ethernet.

The Fluke 125/S features extended harmonics analysis of mains waveforms up to the 33rd harmonic, including the important 3rd and 5th harmonics which can be an indicator of overheating in the neutral wire or motor. The wide frequency range covers railway (16.66 Hz) and avionics power generator systems (400 Hz) applications.

The bus health test feature acquires the bus signal and compares parameters to industry standard specifications continuously.
It displays bus speed and measures signal quality with 'good'/'bad' indications for parameters like rise- and fall-time, amplitude, bias level, pulse width and distortion.
Bad or missing terminators, bad cable splits, incorrect line loading, line interrupts, missing links, short circuit conditions and reflections are discovered, while the eye-pattern mode allows for a visual check of signal integrity to easily identify anomalies like phase noise, jitter or distortion.

In addition to the standard accessories that come with the 125/3, the 125/S provides: FlukeView software, a C120 carrying case and an OC4USB optical isolated RS-232 to USB adapter cable.

As simple as one-two-three
In today’s complex systems, a meter measurement simply does not give enough detailed information to determine the cause of a fault. Signal anomalies, dropouts and glitches that may cause a machine to go down are best displayed with an oscilloscope. The 125 ScopeMeter meets today’s need of simultaneously measuring and checking waveforms. The unique Connect-and-View™ triggering automatically displays stable waveforms of virtually any signal. Diagnosis really is as easy as one-two-three!

A three-in-one tool
The 125 scopeMeter combines a 40 MHz dual input digital storage oscilloscope, two true-rms digital multimeters and a dual input TrendPlot™ recorder all in a compact, battery powered instrument. Leave all other test tools behind because the 125 ScopeMeter testing tool is the only one you’ll need.

The confidence to do a better job
Working under time pressure and in cramped or difficult-to-reach locations means you want to focus on the job at hand, not on the test tool in your hand. That’s why the ScopeMeter 120 Series has Connect-and-View automatic triggering. You don’t have to worry about triggering and instrument settings and you have all the information on screen to do the job right.

Connect-and-View™ triggering for an instant, stable display
Scope users know how difficult triggering can be. Incorrect settings show unstable and sometimes incorrect results. Fluke’s unique Connect-and-View recognizes signal patterns and automatically sets up correct triggering. It provides a stable, reliable and repeatable display of virtually any signal, including motor drive and control signals, without touching a button. Signal changes are instantly recognized and settings adjusted for a stable display. Benefit from the speed and convenience when measuring a number of test-points in quick succession.

One test lead measures all
High frequency waveform, meter, capacitance and resistance measurements as well as continuity checks are all covered by the shielded test leads. No time wasted finding or swapping leads. The included accessories allow hook-up at test objects of every dimension.

Use TrendPlot™ to help find intermittents, fast
The toughest faults to find are those that happen intermittently. They can be caused by bad connections, dust, dirt, corrosion or simply broken wiring or connectors. Other factors, like line outages and sags or the starting and stopping of a motor, can also cause a machine to stop. You may not be around to see it – your Fluke ScopeMeter will. In this “paperless recorder” mode, you can plot the minimum and maximum peak values and average over time – up to 16 days. The two inputs can plot any combination of volts, amps, temperature, frequency and phase – with time and date stamp – to help lead you to the cause of those faults quickly.

Battery powered mobility
Up to seven hours of battery operation frees you from mains outlets for true on-the-move working. The handheld format and the weight of just 1.2 kg make the instrument easy to carry and to fit comfortably in your hand. The rugged and drip proof case assures long life and reliable operation in the harshest industrial environments.

Floating measurements, safety certified
While conventional oscilloscopes can only make measurements referenced to power line ground, the Fluke 120 Series makes floating measurements so there’s no risk of an accidental ground short circuit when making a connection. The Fluke 125 ScopeMeter test tool and the included shielded test leads are safety certified for measurements on 600 V CAT III industrial power systems. Using the VPS40 probe, measurements up to 1000 V CAT II are fully supported. Via the optically isolated RS-232 interface, the scopemeter can be safely connected to a printer for direct print-out or to a PC for later analysis and documentation using FlukeView Software.