Battery Tester BT3554-50

The new BT3554 series battery tester is a standard instrument for assessing the aging condition of UPS and lead‑acid batteries. It measures internal resistance and voltage using the impedance method, enabling assessments without interrupting power even when the battery is installed in equipment. Moreover, thanks to Yokogawa's proprietary noise‑reduction technology, accurate measurements can be obtained even in noisy environments.

Electronic Insulation Resistance Meter IR5050

Even at extremely high insulation resistances of up to 10 TΩ, stable measurements can be obtained without being affected by interference. The IR5051 features PV insulation resistance measurement and can assess string-level insulation (multiple photovoltaic panels connected in series) during power generation. In addition, our company will simultaneously launch the electronic insulation resistance tester IR5050, which does not include PV insulation resistance measurement. By helping to enhance the efficiency and safety of maintenance for electrical equipment—particularly renewable energy systems—we aim to contribute to the realization of a sustainable society.