A smart, portable photovoltaic tester and troubleshooter engineered for 1500V utility-scale arrays and high-efficiency modules. Measures Voc, Isc, Riso, series resistance, and locates ground faults — fully cloud-connected via Bluetooth app.
IV Curve TracingVoc & IscInsulation ResistanceGround Fault FindingArc Fault Finding
Key Specifications
Max Voltage (Voc)0 – 1500 V
Max Current (Isc)0 – 30 A
Insulation Resistance0 – 99 MΩ
Series Resistance0 – 10 kΩ
Ground Fault LocationRiso < 3 MΩ
HE Module SupportYes
ConnectivityBluetooth / Cloud
Overview
The Emazys Z300 HE is a professional-grade photovoltaic tester and troubleshooter designed for rapid fault detection and performance verification across all stages of a PV system's life — from pre-energisation commissioning through ongoing O&M inspection. It covers Voc, Isc, Riso, series resistance measurement, and ground fault location in a single portable unit, making it one of the most comprehensive single instruments available for DC-side field diagnostics.
The "HE" designation reflects its specific engineering for high-efficiency and bifacial modules, which generate significantly larger inrush currents during Isc measurement than conventional modules. The Z300 HE incorporates inrush current protection circuitry that allows it to operate reliably with TOPCon, HJT, and high-power bifacial strings where unprotected instruments can be damaged or produce inaccurate readings.
Operation is Bluetooth-controlled via the emazys iOS and Android app, which handles test initiation, GPS tagging, photo capture, and automatic cloud sync. All test data — measurements, locations, and images — is logged in real time to the emazys cloud platform, enabling structured reporting, export to CSV/Excel, and remote team visibility without manual data entry.
Key Capabilities
IV Curve & String Testing
Measures Voc, Isc, and series resistance (Rs) at the string level. Rs measurement enables identification of connector degradation, cell cracking, and solder bond failure — faults invisible to Voc/Isc spot checks alone.
Insulation Resistance (Riso)
Riso measurement range of 0–99 MΩ. Test voltage selectable for IEC 62446-1 compliance. Results are flagged automatically against configurable pass/fail thresholds and stored with location data for audit trails.
Ground Fault Location
When Riso drops below 3 MΩ, the Z300 HE activates its ground fault locator function to identify the fault position using tone tracing. This significantly reduces time-to-repair compared to section-by-section isolation methods.
HE & Arc Fault Detection
Engineered with inrush current protection for high-efficiency modules. Polarity checking and Rs measurement support identification of wiring conditions that can lead to series arc fault development over time.
Cloud & App Connected
Bluetooth connection to the emazys iOS/Android app. GPS tagging, photo capture, and module database integration happen automatically. All data syncs to the emazys cloud in real time with CSV and Excel export.
Bifacial Module Support
Designed to handle the elevated capacitance and higher peak currents generated by bifacial and TOPCon modules. Safe and accurate measurement where conventional testers may produce errors or sustain damage.
Full Specifications
Open Circuit Voltage (Voc)0 – 1500 V
Short Circuit Current (Isc)0 – 30 A
Inrush Current ProtectionYes — rated for HE and bifacial modules
Electrical Polarity CheckOK or Reverse
Insulation Resistance (Riso)0 – 99 MΩ
Ground Fault LocatorActive when Riso < 3 MΩ
Series Resistance (Rs)0 – 10 kΩ
ConnectivityBluetooth (iOS & Android app)
Data Managementemazys cloud — CSV / Excel export
GPS & Photo CaptureVia controller app
Power SourceRechargeable Li-ion battery (RRC 2054)
Have you used the Emazys Z300 HE in the field? We'd like to hear about your experience — what worked well, where it fell short, or how it compared to other instruments you've used. Use the Request Advice form on our home page to share your feedback. Community input shapes the guidance we publish.
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