HT Instruments PV-CHECKs PV Installation Tester VDE 0126 (1009501)

The PV-CHECKs stands apart as a dedicated photovoltaic installation tester, combining insulation resistance measurement, open-circuit voltage, short-circuit current, and continuity checks in a single handheld instrument. It addresses the specific verification needs of solar PV systems under VDE 0126, streamlining commissioning and periodic inspection workflows.

Highlights

• Measures insulation resistance at 250 V, 500 V, and 1000 V DC up to 999 MΩ
• Records open-circuit voltage (Voc) up to 1000 V DC and short-circuit current (Isc) up to 15 A
• Continuity of protective conductors with 200 mA test current
• Calculates PV performance parameters: Pmax, Vmax, Imax, fill factor, and efficiency
• Internal memory for up to 999 measurements with USB interface for data transfer
• Backlit LCD for clear readings in various lighting conditions

In daily use

The PV-CHECKs simplifies field testing by guiding the operator through required measurements and storing results for later analysis. Its rechargeable Li-ION battery supports over 500 measurements per charge, reducing downtime on large installations. Optional external sensors allow environmental irradiance and temperature data to be factored into performance calculations.

Full specifications

• Insulation test voltage: 250 V, 500 V, 1000 V DC
• Maximum insulation resistance: 999 MΩ
• Open circuit voltage range: 0.0 V to 1000 V DC
• Short circuit current range: 0.00 A to 15.00 A DC
• Continuity test current: 200 mA
• Continuity resistance range: 0.00 Ω to 99.9 Ω
• Safety rating: CAT III 1000 V, CAT IV 300 V
• Display: Backlit LCD
• Internal memory: up to 999 measurements
• PC interface: USB
• Power supply: Rechargeable Li-ION battery
• Battery life: >500 measurements
• Operating temperature: 0°C to 40°C
• Software included: TOPVIEW for data download and report generation

Final note

Designed for compliance with EN 62446-1 (VDE 0126-23), the PV-CHECKs provides the essential measurements for verifying PV system safety and performance in one portable package.