Earth resistance tester MX 531

for electrical installationsfor plug sockets

TESTER FOR INSTALLATIONS WITH TT NEUTRAL EARTHING SYSTEM and LIVE 2P+E SOCKET With its compact format, the MX 531 can be used one-handed and its wrist strap makes it easy to transport. Itsrotary head makes it easy to use wherever the 2P+E socket is located and the backlit display ensures that it is easy to read. The measurement result remains displayed for 10 s. The backlighting has a second function as it changes colour: ‐ blue when the MX 531 is connected to the socket ‐ red if the measurement does not comply, ‐ grey if all the results comply and the MX 531 is disconnected The MX 531 is an electrical socket tester which can be plugged into all socket configurations: • - it checks that an electrical socket in a TT system is operating correctly • - it measures the voltage and displays the conductor connections on a single-phase 2P +E socket • - it automatically measures the earth resistance RE • - it performs a trip test on the 30 mA RCD In addition, depending on the results, pictograms are displayed to provide further confirmation concerning their conformity. This stand-alone instrument without batteries is recharged directly on the mains. Self-employed electricians and installers, maintenance technicians: the MX 531 is designed to simplify your job every day. It is delivered with a wrist strap and a carrying bag.