Power monitoring system 8079-HD

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Product overview
This system provides continuous circuit continuity monitoring for photovoltaic (PV) modules integrated with thermal cycle test chambers to record temperature and current during environmental stress testing.

Key features

• Continuous monitoring of PV module circuit continuity during thermal cycling.
• Model 8079-HD with DC constant current power supplies.
• 12 independent power supply channels for simultaneous module testing.
• Automatic current switching and monitoring per IEC 61215-2:2021.
• Direct connection to temperature sensors and real-time I/V/T visualization.

Technical specifications

• Model: 8079-HD
• Power supply type: DC constant current
• Number of power supplies: 12 units
• Compliance/switching: Current switching and monitoring according to IEC 61215-2:2021
• Temperature/current operation: Continuous current applied in heating phase at specification current for −40 °C to +80 °C; during cooling phase current reduced to ≤1.0% of STC peak power at low-temperature dwell; delayed current application permitted if temperature rise rate exceeds 100 °C/hour until −20 °C.
• Monitoring: Individual temperature sensor connections, real-time I/V/T curves and event logging.
• Data handling: Excel export, historical data reuse, configurable retention (default 60 seconds).

Test procedure and requirements

• Mechanical requirement: a 5 N weight attachable to the module electrical termination leads.
• Connections: connect temperature sensors and link each module positive terminal to the corresponding power supply positive terminal; connect the second terminal accordingly.
• Current settings: during heating apply continuous current per technical specification for −40 °C to +80 °C; during cooling at the −40 °C dwell and when temperature is above 80 °C reduce current to ≤1.0% of measured STC peak power for continuity monitoring.
• Delay rule: if temperature rises faster than 100 °C/hour at lowest temperatures, delay current application until temperature reaches −20 °C.

Software features

• Time control: start/end time settings and auto-stop function.
• Data export: saves results in Excel format with reusable historical export.
• Real-time display: I/V/T curve visualization for each channel.
• Alarm system: logs timestamp, object and event description for fault tracing.
• Retention: display and configurable retention period for saved data (default 60 seconds).
• Saved Excel support for measurement records and analysis.

Applications

• PV module production testing and quality control.
• Environmental and thermal cycling tests in R&D and certification labs.
• Long-term reliability and ageing studies for photovoltaic modules.

Compliance

• Designed to meet test and monitoring requirements of IEC 61215-2:2021 for PV module thermal cycling continuity checks.