Product Name: Ammeter/LCD Digital Ammeter/Single -Phase AC Digital Ammeter/Lnf32 Ammeter Model NO.: LNF32 Customized: Non-Customized Certification: RoHS Type: Energy Meter Power Meter Connection: Terminal Theory: Electronic Meter Electric Equipment: Single-phase Usage: Multi-Functional Energy Meter Installation: Direct Connected Display: Digital Origin: China HS Code: 85044019 Product Description LNF32 single-phase AC LCD digital ammeter is suitable for measuring single phase AC current parameters of low voltage distribution system. It supports programmable transformation ratio, and can be equipped with communication function to support Modbus-RTU communication protocol.LNF32 can be widely used in various control systems, distribution automation system, industrial automation system and intelligent buildings.Working environment Working temperature-10°C -- 55°CStorage temperature-25°C -- 70°CRelative humidity ≤95% RH, no condensationWorking altitude≤2500mAnti-pollution levelNon-corrosive gasProtection degreeFront case IP54, rear case IP20.InsulationBetween signal, power supply, output terminal to case resistance >100MΩWithstand voltageInput and power supply ≥ 2kV, input and output ≥ 2kV, power supply and output ≥ 2kVDisplayDisplay methodLCDWorking power supplyRated rangeAC/DC(80~270)VPower consumption≤5VAWithstand voltageInput and power supply ≥ 2kV, input and output ≥ 2kV, power supply and output ≥ 2kVCurrent inputRange5A/1AResolution 1 mAImpedance≤20mΩ/ per phasePower consumption≤0.2 VA/ per phaseOverloadContinuous:1.2InInstantaneous:10In/5sFrequency45 Hz-65 HzCommunication interface Physical interfaceRS-485Communication speedUp to 9.6 kbps Communication protocolModbus-RTUIsolation voltage2000 VAC (1 min)EMCElectrostatic discharge immunityIEC 61000-4-2-IIIRadiated, radio-frequency, electromagnetic field immunityIEC 61000-4-3-IIIElectrical fast transient/burst immunityIEC 61000-4-4-IVImpact (surge) immunityIEC 61000-4-5-IVImmunity to conducted disturbances, induced by radio-frequency fieldsIEC 61000-4-6-IIIPower frequency magnetic field immunityIEC 61000-4-8-IIIVoltage dips, short interruptions and voltage variations immunityIEC 61000-4-11-III