Fluke 225C and 215C ? Color ScopeMeters with Industrial Bus Health Test capability
Based on the 199C and 196C Color ScopeMeters, the 225C and 215C offer the full functionality of those instruments yet with the addition of powerful test capabilities for a wide variety of Industrial Bus systems. When in Bus health Test mode, these ScopeMeters automatically make an analysis of the electrical signals passing through the bus, and compare the parameters to standard values as described in the industry standards for that bus type. Alternatively, the user may select an ?Eyepattern? display to visually check the overall signal quality.

Parameters are automatically qualified as ?good?, ?weak? or ?bad? based on a comparison to the appropriate industrial standards or to user set reference values. Each of the measured parameters is presented with momentary value and with statistical minimum and maximum values measured over time. The reference values used are also displayed, to give the user an easier grip on the systems behaviour. Tested parameters include signal amplitudes, bias voltage, rise- and fall-times, jitter, distortion and noise levels (in-band noise as well as out-of-band noise) depending on the requirements of the associated industry standard.

The Fluke 225C and 215C are the instruments of choice for maintenance specialists who deal with industrial buses and networks as well as with general electronics. You can verify the electrical integrity of your bus and network, performing ?physical layer tests? and getting answers quickly and easily.

Based on the 200 MHz or 100 MHz 190C Series Color ScopeMeters, these instruments offer all functions found in the 190C Series, with Bus Health Test capabilities added on top.

Bus Health Test
Bus Health Test analyses the electrical signals on the industrial bus or network and gives a clear ?Good, ?Weak or ?Bad validation mark for each of the relevant parameters, presented next to the actual measurement value. Measured values are compared to standard values based on the selected bus type, or you may set your personal reference values if you need different tolerances.

All common bus types are supported
The 225C and 215C ScopeMeters support not just one or two bus systems but all commonly seen industrial buses. From the lower speed AS-i and CAN to the higher speed Ethernet 100Base-T based systems are covered by a single instrument. A simple menu structure allows for selecting the main bus type and, where applicable, sub-types listed in a sub-menu for easy selection. Tested parameters and reference values are then set according the selection made.

Large color screen
The large color screen of the 225C and 215C shows the individual parameters with validation, the actual measured value, the minimum and maximum values recorded over time, and the reference values used for the validation. The choice of parameters differs with the bus type and may include bias voltage, signal high- and low-levels, rise- and fall-times, in-band and out-of-band noise levels, jitter, pulse width, baudrate, and more. The activity indicators tell you the data ?ow is ongoing and they stop flashing the moment communications come to a halt.

Making test connections
The large screen also gives wiring information for each of the supported bus types, giving the user guidance in making the test connections. A set of break-out adapters is included with the 225C and 215C to give access to each of the wires and pins of the commonly used connection systems M12, DB-9 and RJ-45.

Eyepattern Mode
The Fluke 225C and 215C can make the signal quality validation as soon as electrical signals are passed along the network, without looking at the data content. They ?nd errors like improper cable connections, bad contacts, incorrect grounding and missing or super?uous terminators. In the eye-pattern mode, a waveform display is built over successive signal passes to give you a visual indication of overall signal quality, noise levels and signal jitter, using the scope?s user selectable persistence mode.

Floating independently isolated input channels
Thanks to the independently isolated input channels and the floating inputs, the ScopeMeter can take truly ?oating differential measurements from balanced 2-wire systems such as RS-485 and CAN, giving a high level of suppression for common mode disturbances and noise. One input channel can be connected to measure the voltage between the two signal wires, and the other can be connected to measure the common mode voltage over ground at the same time, independently. This way, you may also measure the signals passing through the twisted wires of the 100Base-T Ethernet.

Fluke 225C and 215C compared with other ScopeMeters
All ScopeMeters allow you to perform the basic electrical tests (such as copper resistance and isolation tests) on an electrical system or a cable. The Fluke 125 offers a cost-effective solution for making tests on industrial buses and networks, using a common reference (?ground?) connection. The Fluke 125 also includes a fully featured 40 MHz Industrial ScopeMeter. The 225C and 215C give more extensive industrial bus signal analysis capabilities. Thanks to the isolated channel structure, the 225C and 215C give a far better immunity to common mode noise and disturbances and can measure common mode voltages separately. On top, the 225C and 215C come with higher measurement speeds and give you all the measurement capabilities associated with the 190C Series.
Apart from the Bus Health Test functionality, the 225C and 215C incorporate the full functionality of the 199C and 196C Color ScopeMeters.

Deep memory for high-resolution ScopeRecord
The ScopeRecord memory stores 27,500 points per input or more, for high resolution recording of events up to 48 hours, and captures fast intermittents and glitches as short as 50 ns. This continuous roll mode stores, for example, events like motion profiles, UPS-, power supply- and motor start-ups. All models also have a ?Stop-on-Trigger? in the ScopeRecord mode. This allows the ScopeMeter to store waveform data until the instrument is triggered or until a repetitive trigger signal is interrupted. This way, the instrument will, for example, automatically recognize a power failure and store the waveform data preceding it. And with 100 x zoom, you can look at the smallest details, like individual power cycles. Two of these 27,500 point recordings can be stored for later analysis.

Measure from mV to kV ? fully isolated and safely!
The ScopeMeter 190 Series have three independently floating isolated inputs. While conventional oscilloscopes can only make measurements referenced to the line power ground, measurements on each of the Fluke ScopeMeter 190 Series inputs can be referenced to a different "low" level. This enables measurements in mixed circuits having different ground references, and also eliminates the risk of accidental ground short circuits. All inputs are safety certified for measurements in 1000 V CAT II and 600 V CAT III environments. And the standard probes cover a wide application range from mV to kV, making the ScopeMeter 190 Series ideal for micro-electronics to electrical power applications.

Analysis power
For analysis of waveforms, ScopeRecord and TrendPlot recordings, the ScopeMeter 190 Series feature 30 automatic measurements, plus cursors, zoom and a real-time clock. The analysis can be made directly or later when back in the office. Up to 2 recordings and 15 scope screens can be stored for analysis, print-out or download to a PC.

Frequency Spectrum Analysis
All 190C Color ScopeMeters now include Frequency Spectrum Analysis functionality based on Fast Fourier Transformation (FFT) analysis as a standard feature. This makes it possible for you to identify the individual frequency components contained in a signal. The spectrum analysis function is also handy to reveal the effects of vibration, signal interference or crosstalk. An automatic window function assures optimal windowing, although you may manually select your preferred time window.

Waveform Pass / Fail Testing
Waveform reference? allows an acquired trace to be stored and designated ?reference trace? for visual comparisons, or it can be used as the reference for automatic ?Pass / Fail? testing. Up to 100 individually matching (?Pass?) or non-matching (?Fail?) waveforms can be stored in the replay memory, allowing you to monitor your system?s behavior over a long period of time, without the need for you to attend!

Cursor-limited automatic measurement
Automatic power and Vrms-measurements can now be performed on a specific, user identified portion of the waveform using the cursors of the Fluke 190C to define the time-window of interest. In this way, the Color ScopeMeter can measure the power within a specified time span, or the rms-value of a voltage during a dedicated period of time.