Z300 HE – 1500V / 40A
Advanced analysis · 1500 V / 40 A. PV string testing and extended troubleshooting with MPP / IV analysis, string capacitance and Ipeak testing up to 200 A. Controlled via the emazys Controller App for iOS / Android, with direct sync to emazys cloud.
Description
Advanced analysis up to 1500 V and 40 A. Z300 HE combines PV string testing and extended troubleshooting with MPP / IV analysis, string capacitance and Ipeak testing up to 200 A. Designed for detailed analysis of high-efficiency PV systems.
Control your instrument with the emazys Controller App and connect your work to emazys cloud. Three instruments. One ecosystem.
Testing & diagnostics
| Feature | Specification |
|---|---|
| Open-circuit voltage (Voc) | 0–1500 V |
| Voltmeter function | Yes |
| Short-circuit current (Isc) | 0–40 A |
| Polarity | Yes |
| Insulation resistance (Riso) | 0–99 MΩ |
| Riso fault position | Yes |
| Series resistance test | Yes |
| Disconnect test | Yes |
| MPP test / IV analysis (Vmpp, Impp, Pmpp, FF) | Yes |
| String capacitance | Yes |
| Ipeak test (inrush current measurement) | 0–200 A |
| Tone generator | Yes |
MPP characteristics (Vmpp, Impp, Pmpp and FF) are estimated, not directly measured. STC correction is available with the optional Tempirra environmental sensor.
App & cloud connectivity
| Feature | Specification |
|---|---|
| emazys Controller App | iOS / Android |
| On-board AI support | Yes |
| Direct sync to emazys cloud | Yes |
| emazys dashboard with analysis tools | Yes |
emazys cloud is a shared digital ecosystem
A shared digital ecosystem for your sites, instruments and test results. All three Z300 instruments connect to the same emazys platform.
| Feature | Capabilities |
|---|---|
| Module data & calculations | Interactive module data and STC calculations |
| Site & team management | Site management and team collaboration |
| Analysis & support | Analysis tools and AI support |
| Reports | CSV, Excel, PDF and Word |
| Device management | Instrument administration and calibration data |
| Integration | Third-party system integration |
Included in the kit
- Z300 HE instrument
- RRC2054 rechargeable Li-Ion battery (15 V, 3200 mAh, 48 Wh)
- RRC AC adapter, 100-240 VAC input
- Handheld tone pickup probe
- Power cable for charger, country specific
- Test lead (black) 1500V CAT III
- Test lead (red) 1500V CAT III
- PV measuring cord, MC4 female 1500V CAT III (black)
- PV measuring cord, MC4 male 1500V CAT III (red)
- Crocodile clip to banana lead, GND 1500V CAT III (yellow/green)
- Insulated alligator clip 1500V CAT III (black)
- Insulated alligator clip 1500V CAT III (red)
- Fine probe 1000V CAT IV (black)
- Fine probe 1000V CAT IV (red)
- Carry bag for accessories
Physical specifications
| Feature | Specification |
|---|---|
| Enclosure | Peli 1400 Protector case, custom-modified |
| External dimensions (L × W × D) | 347 × 295 × 146 mm |
| Internal dimensions (L × W × D) | 301 × 228 × 131 mm |
| Internal volume | approx. 9 L |
| Weight (instrument only) | approx. 4.5 kg |
| Connectors for DUT | 3 × shrouded 4 mm banana sockets, 1500 V DC / 1 kV CAT III |
| Ingress protection | IP65 (enclosure closed, formally verified) |
| Operating temperature | 0 °C to +35 °C (limited by battery) |
| Storage temperature | −10 °C to +55 °C (limited by battery) |
| Operating altitude | up to 2000 m |
| Operating humidity | 5 – 95 % RH, non-condensing |
| Pollution degree | 2 (per EN 61010-1) |
| Battery | RRC2054 Li-Ion, 15 V, 3200 mAh, 48 Wh |
| Operating time | 8 – 10 hours typical |
| Standby/sleep time | max. 150 hours in sleep mode |
| Recharge time | 1 – 2 hours |
| External charger | RRC AC adapter, 100-240 VAC input |
| HS Code | 90303900 |
Downloads
Detailed technical specifications
View measurement details, accessories and notes
All measurement accuracies apply under stable light conditions and within the declared operating temperature range. Precision is stated as ± (percentage of reading) ± (absolute offset) unless otherwise noted.
| General | |
| Instrument type | Portable PV string analyzer for high-efficiency module farms |
| Family position | High-efficiency analyzer of the Z300 family |
| Rated system voltage | 1500 VDC, CAT III |
| Rated current | 0 – 40 A DC |
| Designed for | TOPCon, HJT, IBC, n-PERT and other high-efficiency PV modules. Utility-scale 1500 VDC solar farms. |
| Measurement principle | Proprietary short-circuit measurement method optimized for high-capacitance PV modules |
| Connectivity | Bluetooth via ESP32 MCU |
| Host platforms | iOS app, Android app, emazys cloud platform |
| Cloud tiers | Free, Premium, Team |
| Open-circuit voltage Voc | |
| Range | 0 – 1500 V |
| Precision | ± 0.5 % of reading ± 1 V |
| Analysis | Polarity check, voltage in-range verification |
| Short-circuit current Isc | |
| DC current range | 0 – 40 A |
| Precision | ± 1 % of reading ± 50 mA |
| Suitable for | TOPCon, HJT, IBC and other high-capacitance HE modules |
| Output | Steady-state Isc, peak current Ipeak, PV+ and PV- monitored throughout measurement |
| String capacitance C | |
| Output | String-level capacitance value |
| Use case | Module characterization, identification of mismatched strings, early indicator of degradation |
| MPP estimation | |
| Reported parameters | Vmpp, Impp, Pmpp, fill factor FF |
| Method | emazys MPP method, anchored by precision Voc, steady-state Isc, measured Rs and string capacitance C. STC correction available with Tempirra environmental sensor. |
| Use case | String-level performance verification against module datasheet values. Identification of underperforming or mismatched strings. |
| Continuous voltmeter | |
| Channels | PV+ to PV-, PV+ to ground, PV- to ground |
| Range | 0 – 1500 V (each channel) |
| Sample time | approx. 25 ms per sample (24-bit ADC) |
| Use case | Live verification during connection. Detection of ground potential anomalies. |
| Insulation resistance Riso | |
| Range | 0 Ω – 99 MΩ |
| Measurement time | approx. 20 s |
| Conditions | Irradiation > 100 W/m², String Voc > 100 V |
| Precision | ± 50 kΩ ± 10 % |
| Ground fault detection and localization | |
| Fault threshold | Riso < 1 MΩ |
| Localization trigger | Riso < 3 MΩ |
| Localization precision | ± 0.5 PV module |
| Localization resolution | 0.1 PV modules |
| Series resistance Rs | |
| Range | 0 Ω – 1 MΩ |
| Measurement time | approx. 10 s |
| Precision | ± 10 % of reading ± 50 mΩ |
| Tone generator and pickup | |
| Tone generator | App-level feature for tracing PV cables in the field |
| Handheld pickup | Included in kit |
| Use case | Locating cables along a run. Identifying which cable connects to which inverter input. |
| Mechanical and environmental | |
| Enclosure | Peli 1400 Protector case, custom-modified |
| External dimensions (L × W × D) | 347 × 295 × 146 mm |
| Internal dimensions (L × W × D) | 301 × 228 × 131 mm |
| Internal volume | approx. 9 L |
| Weight (instrument only) | approx. 4.5 kg |
| Connectors for DUT | 3 × shrouded 4 mm banana sockets, 1500 V DC / 1 kV CAT III |
| Ingress protection | IP65 (enclosure closed, formally verified) |
| Operating temperature | 0 °C to +35 °C (limited by battery) |
| Storage temperature | −10 °C to +55 °C (limited by battery) |
| Operating altitude | up to 2000 m |
| Operating humidity | 5 – 95 % RH, non-condensing |
| Pollution degree | 2 (per EN 61010-1) |
| Power and battery | |
| Battery | RRC2054 Li-Ion, 15 V, 3200 mAh, 48 Wh |
| Operating time | 8 – 10 hours typical |
| Standby/sleep time | max. 150 hours in sleep mode |
| Recharge time | 1 – 2 hours |
| External charger | RRC AC adapter, 100-240 VAC input |
Optional accessories
- Tempirra environmental sensor: wireless irradiance and temperature reference for STC correction of measurement results. Sold separately.
Notes
MPP estimation. The MPP characteristics (Vmpp, Impp, Pmpp, FF) are estimated and anchored by precision Voc, steady-state Isc, measured Rs and string capacitance C. Values are estimated, not directly measured, and are intended for string-level performance verification, comparison against module datasheet values and identification of underperforming or mismatched strings.
Voltage abort threshold. The Z300 PVT HE is rated for 1500 VDC operation. The hardware includes a safety margin and aborts the Isc measurement if Voc exceeds an internal abort threshold of approximately 1600 V. Operation above 1500 VDC is not supported.
Ground fault localization accuracy. The ± 0.5 PV module localization precision assumes low string series resistance and stable measurement conditions. On strings with elevated series resistance (long cable runs, partial soiling, weak connections), the reported fault position may shift, but remains useful as a starting point for inspection.
Specifications are subject to change without notice. All values are typical unless otherwise specified. For the most current data sheet, contact emazys.
Additional information
| Weight | 6 kg |
|---|---|
| Dimensions | 39 × 32 × 35.5 cm |
| OEM | emazys |

