Custom LED PRO EX DU51 DC Voltage Single Phase LED Panel Meter, GB/T 13850-1998 1. Profile PRO EX digital panel meter is an intelligent instrument that has integrated with modular design of digital display, analog output, RS485, over limit alarm record and relay output. The instrument fulfills GB/T13978-2008, GB/T 13850-1998 standard, GB/T 17626.5-2008, IEC1010 and EN61010 standard. 2. Technical Data Connection:Singlephase Input:57.7~600VDC Displayrange:0-9999V 3.Operationalprinciplediagram 4.Wiringdiagram PROEXDU51WiringDiagram 5.Otherparameters Operationtemperature:-10~55; OperationHumidity:95%(non-condensing) Storagetemperature:-40~85; Storagehumidity:95% DimensionalSize:EX51:48*96*76mm Installation:Panelmounting. EX51Installationsize:46*94mm Competitive advantage : We can follow the Customer-oriented principle, Artel Tech. aims to innovate hi-tech products and provide comprehensive solutions continuously, and continue to offer qualified products and excellent services to its global customers. Artel's successful strategy is reflected in the number of certifications, including ISO9001 and CE quality system certification, Software Enterprise certificate issued by National Information Department, and hi-tech company certificate issued by government, etc.