Patented contact-protected connection for multimeter supply

Gossen Metrawatt has introduced a new patented solution for secure power supply of its DAkkS-calibrated digital multimeters METRAHIT IM XTRA and METRAHIT IM E-DRIVE.

The portable all-in-one devices integrate an exceptionally wide range of testing and measuring functions for maintenance, service and diagnosis of electrical machines, drives and systems. In addition, they also cover measuring methods for safety testing in the automotive industry, avionics and electrical engineering.

Gossen Metrawatt has now patented its innovation of a contact-protected connection of the quickly exchangeable supply modules for mains or battery operation. The terminal is recessed into the housing body, effectively ensuring device safety according to CAT III or CAT IV at all times even when exchanging modules or batteries during operation. This solution ensures protection against electric shock according to measuring category 1,000V CAT III, even at overvoltages up to 6,000V. Users can also safely exchange the supply module when the measurement cables are plugged in and the measuring signal is applied, and that without having to disconnect the measurement cables from the test object. Spring-loaded contacts and an extended-length connector format ensure reliable contacting inside the housing.

The new patented solution, which is registered by the European Patent Office under publication number EP3474023A2, underlines Gossen Metrawatt’s high innovative capacity in the field of measurement and test technology for electrical safety.

The press release can be downloaded here »