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Emazys Z300 HE PV String Analyser

Emazys
SKU: EMAZZ300HE
  • Supports 1500 VDC utility-scale PV systems
  • Optimised for TOPCon, HJT, IBC & n-PERT modules
  • Accurate Isc measurements up to 40 A on high-capacitance strings
More Info
Typically ships in 7-10 working days

Emazys Z300 HE PV String Analyser

The Emazys Z300 HE PV String Analyser is purpose-built for utility-scale solar farms using modern high-efficiency PV technologies, including TOPCon, HJT, IBC and n-PERT modules. It is designed to operate where conventional instruments often struggle, supporting testing on up to 1500 VDC systems while delivering reliable commissioning, troubleshooting and diagnostic capabilities.

High-efficiency modules often generate elevated diffusion capacitance, which may produce inrush currents exceeding 100 A during testing. The Z300 HE PV addresses this challenge using proprietary measurement techniques, enabling safe and accurate short-circuit current (Isc) measurements up to 40 A, even on high-capacitance strings.

The Z300 HE PV is built to take on challenging environments, combining IEC 62446-1 commissioning capability with cloud-connected diagnostics to enable plant operators and EPC contractors improve testing accuracy, reduce downtime and monitor long-term string performance across large-scale solar installations.

Comprehensive IEC 62446-1 Commissioning Tests

The Z300 HE PV performs all key string-level tests required for solar commissioning and maintenance in a single instrument, including open open-circuit voltage (Voc), short-circuit current (Isc) and insulation resistance (Riso), while also performing automatic polarity verification to prevent incorrect connections during testing.

In addition to standard commissioning checks, the analyser includes advanced diagnostic tools such as:

  • Ground fault localisation to within ±0.5 PV module
  • Series resistance (Rs) measurement using impedance spectroscopy
  • String capacitance analysis
  • Continuous three-channel voltmeter monitoring
  • Integrated tone generator with handheld pickup probe
  • Maximum Power Point (MPP) estimation

 These capabilities allow technicians to identify underperforming strings, locate faults faster and detect early degradation before they can impact plant performance.

Accurate MPP Estimation and Advanced Diagnostics

The integrated Emazys MPP method estimates Vmpp, Impp, Pmpp and fill factor without needing the full IV curve tracing. This provides fast insight into string performance while reducing test complexity in the field. When used with the optional Tempirra environmental sensor, the system can also apply STC correction to improve the accuracy and comparability of results across installations and time periods.

The Z300 HE PV integrates with the Emazys Cloud platform, which includes an AI-based analysis tool known as Max, which helps identify recurring ground fault patterns, abnormal resistance trends and early-stage degradation across multiple sites. By simply logging in to the Emazys Cloud, Max AI can access your test data and give you actionable insights and diagnostic guidance, making it one of the fastest ways to make decisions and reduce reliance on manual date interpretation.

The analyser connects via Bluetooth to iOS and Android devices, allowing full control through the Emazys mobile app. Every measurement is automatically synchronised to the Emazys cloud, including: test results, GPS coordinates, environmental data, site photos and string identifiers. Data is organised by site and string for streamlined commissioning and maintenance workflows. Reports can be exported in PDF, CSV and Excel formats for compliance documentation and customer handover.

Available cloud plans include Free, Premium and Team options to allow scalability from individual engineers to large portfolio operators.

Designed for Utility-Scale Field Work

The Z300 HE PV is housed in a rugged IP65-rated Peli 1400 case with sealed feed-throughs for dependable outdoor use. Reinforced insulation and CAT III 1500 V safety compliance provide protection when testing high-voltage solar strings in demanding environments. Its rechargeable lithium-ion battery delivers approximately 8 to 10 hours of operation, with recharge times between 1 and 2 hours, ensuring minimal downtime between field tasks.

Part number: Z300 HE

Emazys Z300 PVT, Z300 Zuno & Z300 HE PV Comparison Table

  Z300 Zuno Z300 PVT Z300 HE PV
Best used for Fast string validation and standard electrical checks Advanced diagnostics and fault finding High-efficiency utility-scale PV diagnostics
Target module types Standard PV modules Standard utility-scale PV modules TOPCon, HJT, IBC and n-PERT modules
System Voltage Rating Up to 1500 V DC Up to 1500 V DC Up to 1500 V DC
Maximum Current Up to 30 A DC Up to 30 A DC Up to 40 A DC
Advanced troubleshooting Basic insulation fault location only Full diagnostics, including Rs analysis Full diagnostics with enhanced HE module analysis
Series Resistance (Rs) Measurement Not included Included Included with impedance spectroscopy
Ground Fault Localisation Basic Included Included with ±0.5 module accuracy
Tone Generator & Amplifier Probe Not included Included Included
MPP Estimation Not included Not included Included
Cloud Sync & Reporting Basic cloud functionality Full cloud sync and reporting Full cloud sync with AI analysis
Upgradeable to Higher Model Yes via cloud activation Not applicable Not applicable

Specialists In Solar PV Test Equipment

Watch the video above to see how we can help you find the right solar pv test equipment & get in touch on 0113 248 9966 or sales@test-meter.co.uk.

As a leading Solar PV Test Equipment and Solutions provider in the UK, we have a wide range of expertise. Whether you're conducting simple commission tests, small-scale 1000V solar PV rooftop installations or 1500V commercial solar farms to more in-depth IV curve trace analysis, our team ensures your enquiry is looked after from start to finish, providing you with the perfect solution.

Find the best solution for your application and budget through:

  • Onsite-demo/remote consultations on request
  • 'Try Before You Buy' and hire options available
  • After-sales care that provides ongoing calibration and servicing
  • Finding the optimal software package, ensuring the correct reporting and data functionality for your needs

Can't find the right Solar PV Test Equipment or solution? We're on hand to help, please get in touch on 0113 248 9966 or sales@test-meter.co.uk

Key Features

  • Supports 1500 VDC utility-scale PV systems
  • Optimised for TOPCon, HJT, IBC & n-PERT modules
  • Accurate Isc measurements up to 40 A on high-capacitance strings
  • Handles >100 A inrush currents with proprietary measurement method
  • IEC 62446-1 compliant (Voc, Isc, Riso, polarity test)
  • Ground fault localisation (±0.5 module accuracy)
  • Measures series resistance (Rs) via impedance spectroscopy
  • Fast MPP estimation (no IV curve required)
  • 3-channel voltage monitoring for real-time diagnostics
  • Integrated tone generator & probe for cable tracing
  • Bluetooth + mobile app control (iOS & Android)
  • Automatic cloud sync with AI diagnostics (Max AI)
  • Logs GPS, environmental data, photos & string IDs
  • STC correction support (with Tempirra sensor)
  • Rugged IP65 Peli case for field durability
  • CAT III 1500 V safety rated
  • 8–10 hour battery life, fast recharge

What's In The Box?

  • Z300 PVT HE instrument
  • Rechargeable Li-Ion battery pack
  • AC charger and country-specific power cable
  • Handheld tone pickup probe
  • 1500 V CAT III test leads
  • MC4 PV measuring cords
  • Ground lead with crocodile clip
  • Insulated alligator clips
  • Fine probe set
  • Carry bag for accessories
Specification

Electrical Measurements Capabilities

  • Maximum system voltage: 1500 V DC
  • Open-circuit voltage (Voc) measurement range: up to 1500 V DC
  • Short-circuit current (Isc) measurement:
    Range: up to 40 A
    Optimised for high-capacitance PV strings
    Proprietary method to safely handle high inrush currents (>100 A)
  • Insulation resistance (Riso):
    Test voltage: up to 1500 VSuitable for IEC 62446-1 compliance testing

Performance & Diagnosis Functions

  • Maximum Power Point (MPP) estimation:
    Parameters: Vmpp, Impp, Pmpp, fill factor
    No full IV curve tracing required
  • Series resistance (Rs) measurement: via impedance spectroscopy
  • String capacitance measurement: detects abnormal electrical behaviour
  • Ground fault localisation accuracy: ±0.5 PV module
  • Continuous voltage monitoring: 3 independent channels
  • Automatic polarity detection: prevents reverse connection errors
  • Integrated tone generator:
    Includes handheld pickup probe for cable tracing

Standards & Compliance

  • IEC 62446-1: compliant for PV system commissioning tests
  • Measurement category: CAT III 1500 V
  • Insulation class: Reinforced insulation

Connectivity & Data Management

  • Wireless communication: Bluetooth
  • Mobile compatibility: iOS and Android (Emazys app)
  • Cloud integration: Emazys Cloud platform
  • AI diagnostics: Max AI analysis engine

Mechanical & Environmental

  • Enclosure: Peli 1400 rugged case
  • Ingress protection: IP65
  • Designed for: outdoor / utility-scale field use
  • Operating environment: suitable for harsh field conditions (dust, moisture exposure)

Power Supply

  • Battery type: Rechargeable lithium-ion
  • Battery life: approximately 8–10 hours (typical field use)
  • Charging time: 1–2 hours

Supported PV Technologies

  • TOPCon
  • HJT (Heterojunction)
  • IBC (Interdigitated Back Contact)
  • n-PERT
Label Type Size Download
pdf Emazys Z300 HE PV Datasheet pdf 442.1 KB Download
  1. Emazys Tempirra PV Irradiance and Temperature Datalogger
    Emazys Tempirra PV Irradiance and Temperature Datalogger SKU: EMAZTEMPIRR
    £1,095.00 (ex VAT)
    £1,314.00 (inc VAT)

Please see our terms and conditions for full details of TM Care & Protect.

Everything you’re likely to require for the next 3 or 5 years:

✅ Annual calibrations included
No further calibration costs for either 3 or 5 years

✅ Free collection and return for annual calibration
No hidden postage costs when it’s time for calibration

✅ ‘Zero-Downtime’ for the life of your care plan
Free loan equipment should your purchase ever need sending away for repair

✅ Anti-theft protection 
Each care plan includes a SmartTrace Forensic Marking kit that acts as a deterrent for your test equipment and other tools

✅ Instrument cleaning kit
Cleaning kit included with each TM Care & Protect plan

Our hope is that TM Care & Protect will bolster our commitment to support you throughout your journey with us, providing you peace of mind from the hassles of annual servicing, potential tool theft and loss of earnings.

Ensures complete reliability, minimised downtime and peace of mind. TM Care & Protect packages include:

✅ Annual Calibration
No further calibration costs for up to 5 years.

✅ Zero Unplanned Downtime
In case of any unforeseen repairs, we provide FREE loan instruments so you can continue working.

✅ Theft Deterrent Kit
Each care plan includes a SmartTrace forensic marking kit: The UK's most powerful theft deterrent. Use on your test equipment, van and tools.

✅ No Shipping Cost
Includes collection and return deliveries when it's time for calibration.

✅ Instrument Cleaning Kit
Avoid preventable issues by keeping your test equipment clean.

Our hope is that TM Care & Protect will bolster our commitment to support you throughout your journey with us, providing you peace of mind from the hassles of annual servicing, potential tool theft and loss of earnings.

Please see our terms and conditions for full details of TM Care & Protect.