elma instruments TE-DK500 Socket thiab Earth Loop Tester Phau Ntawv Qhia
Cov cuab yeej elma TE-DK500 yog lub qhov (socket) thiab Lub Ntiaj Teb Loop Tester tau tshaj 230 V AC ib-theem 2-ncej + lub ntiaj teb "Danish" K-hom fais fab sockets. Lub ergonomic tester no muaj qhov OK / tsis OK qhov pib ntawm 500 Ω, theem-nruab nrab rov qab nrhiav pom, thiab tau tshaj 30 mA ~ RCD. Nws cov lus qhia tau yooj yim nyeem thiab nws tso cai rau kev ntsuas impedance ntawm lub ntiaj teb electrode.