HT Instruments PVCHECKs‑PRO – Multifunction Commissioning Tester (1500 V / 40 A)

PVCHECKs-PRO: The Ultimate Multifunction Commissioning Tester

The PVCHECKs‑PRO is a robust, installer‑grade tester engineered to carry out complete safety and commissioning measurements on photovoltaic systems up to 1500 VDC and 40 A, in full compliance with IEC/EN 62446‑1 standards. With a single GO‑key operation, it runs all required tests—voc, isc, insulation, polarity, continuity—and supports seamless auto‑sequential testing across multiple strings.

Key Capabilities

• Open‑circuit voltage (Voc) up to 1500 V and short‑circuit current (Isc) up to 40 A on mono‑ or bifacial PV modules and strings 

• Insulation resistance testing at selectable DC voltages: 250 / 500 / 1000 / 1500 V, with Polarization Index (PI) and Dielectric Absorption Ratio (DAR) calculations 

• Ground Fault Locator (GFL) function to pinpoint insulation failures quickly within a string 

• Continuity of protective conductor testing with 200 mA current to ensure earthing integrity, plus polarity checks 

• Auto‑sequence mode enables the testing of all strings in a combiner box with a single button press 

Advanced Features

• Compatible with the optional SOLAR03 remote module (Bluetooth) to enable irradiance measurement using HT305 reference cell and temperature sensing with PT305 probe—allowing extrapolation to STC conditions

• Rated CAT III 1000 VAC / 1500 VDC, ensuring industry-standard safety compliance 

• Backlit LCD with inline Help key for guided operation and diagnostics 

• Internal storage for up to 999 test results and a database of up to 64 PV module profiles for on-site efficiency comparisons

• Supports Wi‑Fi and optical/USB connectivity, compatible with HTANALYSIS App and PC software for data export and analysis 

Includes

• HT Instruments PVCHECKs‑PRO tester

• Rugged hard case

• Calibration certificate

• Quick start guide & full user manual

• Software available via download online 

Technical Specifications

Ideal For

• Solar PV commissioning engineers and contractors

• Maintenance teams and inspectors verifying compliance with IEC/EN 62446‑1

• Solar field technicians diagnosing insulation or component faults

Why PVCHECKs‑PRO Stands Out

With a single GO‑key operation, integrated fault-locating, full-module database support, and optional remote sensing capability, the PVCHECKs‑PRO delivers speed, comprehensive diagnostics, and professional reporting designed to optimize commissioning workflows while enhancing safety compliance and minimizing downtime.

Document: Specification Sheet

Comprehensive Testing Capabilities

The HT Instruments PVCHECKs-PRO is designed for a variety of testing applications, making it a versatile tool for professionals. It supports testing up to 1500 V and can handle currents of 40 A. This allows technicians to evaluate the performance and safety of photovoltaic systems efficiently. The tester’s ability to perform insulation resistance tests and continuity tests means you can ensure everything is functioning as it should, and it helps to identify potential issues early on.

User-Friendly Interface

The PVCHECKs-PRO comes equipped with an intuitive user interface that simplifies the testing process. Its clear display provides real-time feedback, making it easier for users to interpret results. This is particularly beneficial for those who may not have extensive experience with testing equipment. Moreover, it features built-in storage for test results, which enhances workflow efficiency and enables quick access to previous data for comparison.

Robust and Reliable Design

When it comes to durability, the PVCHECKs-PRO excels. Its rugged construction ensures that it can withstand the rigors of fieldwork without compromising performance. Whether you're working under adverse weather conditions or in demanding environments, this tester remains reliable. This robustness translates to longer service life, minimizing the need for frequent replacements or repairs, thus saving costs in the long term.