Buku la wogwiritsa ntchito la BA507E, BA508E, BA527E ndi BA528E Loop Powered Indicators limapereka malangizo athunthu oyika ndi kusanja zizindikilo za digito izi zomwe zimawonetsa kuyenda kwamakono mu lupu ya 4/20mA. Bukuli likuphatikiza miyeso yodulidwa komanso kutsatira malangizo a European EMC Directive 2004/108/EC.
Phunzirani za BEKA's BA304G-SS-PM ndi BA324G-SS-PM loop yoyendetsedwa ndi zizindikiro kudzera mu bukhuli latsatanetsatane. Dziwani mawonekedwe awo, zofunikira pakuyika, ndi ma code certification. Pezani chizindikiro chanu cha digito chotetezeka kwambiri kuti chizigwira ntchito mosavuta.