Emazys Z200 PV Fault Detection, Analyzer, and Locator
Don’t just detect solar plant failures. Pinpoint them.
The EmaZys Z200 PV Analyzer is a portable, battery-powered instrument that not only detects plant faults and failures but also pinpoints the exact location of the failure within the array.
The Z200 performs impedance spectroscopy between connected string terminals, and measures the terminal voltages and currents flowing under various DC loads introduced by the instrument. By combining the results from these various measurements using the on-board computer, critical faults in the system can be defined and located in less than 5 minutes.
Much More than a String Tester or IV Curve Tracer
When people first learn about the Emazys Z200, they try to fit this unique tool in the string tester or IV curve “box”. The thing is, the Z200 is so much more than a tool that tells you there is a problem. The Z200 will:
- Determine WHY you aren’t getting the return you expected
- Tell you WHAT the problem is
- Identify WHERE the problem is
Traditional PV analyzers provide the first piece of the puzzle. The Z200 helps you solve that puzzle.
The Z200 is so much more than a string tester. It includes the standard PV string testing functionality PLUS:
- On board analysis
- Impedance testing
- Fault position measurements
- Module test, voltage test, current test, timer ground fault test, ground fault test, disconnect test, and tone generator
You can find failures inside the module without dismantling the module. No other instrument can do that. Normally you would have to take them down one by one to determine where the failure is.
Find Pesky Intermittent Solar PV Faults
Do you have a fault that has been difficult to analyze due to the fact that it is intermittent? Even if the fault is intermittent, you can leave the Z200 tool in the field to detect a fault, no matter when it is occurring. Catch faults even if they occur at 5am or 7:30pm!
Pinpoint Faults and Failures
Have you ever had a fault that you can’t locate, even after several visits to the site? The Z200 will change that for you! Z200 users fix faults quicker and more effectively than users of traditional testing methods because the Z200 will determine the exact location of the failure.
Learn more about the economic impact of ground faults in arrays:
Work Even in Cloudy Conditions
Have you ever driven to a site and then had to sit around waiting for minimum weather conditions to run proper testing? The Z200 even works in bad weather, so users don’t have to waste hours waiting for clouds to clear.
Data is Interpreted for You
The Z200 actually tells the user in words what the problem is and where. There is no need to spend hours scrutinizing the data or interpreting reports in order to determine the issue. Of course, the data is available, but it is compiled in self-explanatory reports that make the next steps clear.
Overall Solar Array Health Checks
The Z200 provides data for the overall health of a PV system by measuring Rs, Riso, Voc, Isc, system impedance with and without load, and bypass diode test. Users can compare string by string to see if there is a difference in the impedance. Even just a few ohms will lower the output from the string and affect the return on the solar investment. Z200 users can commercialize on these health checks by charging an annual inspection rate for their services. This business potential even further increases the payback of the Z200.
In summary, the Emazys Z200 allows you to:
- Locate faults and failures in 5 minutes
- Save and average of 2.5 hours per troubleshooting task
- Continue working, even under low solar irradiance
Watch how it works: 
Interested in the Z200? Request a quote!
Solar Data Systems is the official U.S. reseller of emazys products.
