Voltmeter/LED Digital Voltmeter/Three -Phase AC Digital Voltmeter/Lnf26e Voltmeter

LNF26E three-phase AC  LED digital voltmeter supports programmable transformation ratio and RS485 communication with Modbus RTU protocol. It can be used to directly replace analog pointer voltage meter and can be widely used in different control systems, power transformation and distribution automation, industrial automation and intelligent buildings.DisplayDisplay modeLED AccuracyVoltage0.5% Frequency±0.01Hz Voltage inputRange57.7/100/230/400V Resolution0.1 V Impedance≥1.7 MΩ/phasePower consumption≤0.1 VA /phaseOver voltageContinuous:1.2Vn; instantaneous: 2Vn/1min Frequency45 Hz~65 Hz Communication portPhysical interfaceRS-485 Communication speedUp to 9.6 kbpsCommunication protocolModbus-RTU Isolation voltage2000 VAC (1 min) Working power supplyRated rangeAC/DC(80~270)V Power consumption≤3VA Withstand voltage≥2kV Working environmentWorking temperature-10°C -- 55°C Storage temperature-25°C ~ 70°C Relative humidity≤95%RH, no condensation Working altitude≤2500m Anti-pollution degreeNo corrosive gasProtection degreeFront case IP54, rear case IP20InsulationResistance between signal, power supply, output terminals and case >100MΩ Withstand voltageInput and power supply ≥2kV, input and output ≥2kV,power supply and output ≥2kV EMCElectrostatic discharge surge immunityIEC 61000-4-2-III Radiated, radio-frequency, electromagnetic field immunityIEC 61000-4-3-III  Electrical fast transient/burst immunityIEC 61000-4-4-IVSurge immunityIEC 61000-4-5-IV Immunity to conducted disturbances, induced by radio-frequency fieldsIEC 61000-4-6-III Power frequency magnetic field immunityIEC 61000-4-8-III Voltage dips, short interruptions and voltage variations immunityIEC 61000-4-11-III/* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1