Metrel, a manufacturer of test and measurement equipment for the electrical industry, has introduced new diagnostic tools to support the testing and safety of electric vehicle (EV) charging infrastructure and vehicles in Britain.
The company has incorporated EV supply equipment (EVSE) testing firmware across all levels of its multi-function testers, along with adapters that check charger functionality and provide access to the electrical system for testing.
The products
The newly launched DC EVSE adapter A 1732 enhances diagnostic and safety testing on Mode 3 and Mode 4 systems.
Used in conjunction with the MI 3155 multi-function tester, it can assess charger function, insulation monitoring device operation, and protective earth conductor integrity.
The adapter also simulates fault conditions to measure normal, error, and emergency shutdown response times.
Metrel has also added the MI 3132 Electric Vehicle Safety Tester to its product range. Designed for outdoor use, it is powered by rechargeable lithium-ion batteries and carries an IP56 rating.
The MI 3132 tests DC insulation from 50 to 1,500 V, measuring insulation up to 5 GΩ in line with UN ECE R100 and ISO 6469-3 standards.
It includes continuity measurement at both 200 mA and 7 mA for testing through protection systems, and features true micro-ohmmeter capability with a 2 A measuring current, enabling bonding tests of EV chassis and components down to 1 μΩ.
A touch-screen interface guides users through test sequences, with results stored in the device’s internal memory for later download and reporting.
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