• COLOUR TFT SCREEN • IP COMMUNICATIONS • HARMONIC ANALYSIS • SCOPEMETER The DKM-411 is an advanced precision metering device offering an 3.5” size, 320x240 pixel color TFT, together with unrivalled remote monitoring capabilities over internet in a compact and low cost package. The unit itself is a web page and can be opened through any browser for remote monitoring. The central monitoring feature allows monitoring of thousands of meters from one central PC. FEATURES: • True RMS measurements, 0.2% accuracy • 3.5” TFT LCD, 320x240 pixels • Harmonic distortion display (63 harmonics) • Oscilloscope, waveform display • Phasor diagram display • Internal battery backed-up real time clock • Max demand display • User configurable display screen • 2 configurable relay outputs • Energy pulse output capability • 2 opto-isolated, configurable digital inputs • Dual active-reactive power counters • Both mains/generator energy metering • Configurable user counters • Voltage transformer ratio for MV applications • Password protected front panel programming • Reduced panel depth • Sealed front panel (IP54) MEASUREMENTS: • Phase to phase voltages: U12-U23-U31-Uavg • Phase to neutral voltages: V1-V2-V3-Vavg • Phase currents: I1-I2-I3-In-Iavg-Itot • Active power: P1-P2-P3-?P • Reactive power: Q1-Q2-Q3-?Q • Apparent power: S1-S2-S3-?S • Power factor: cos1-cos2-cos3-?cos • Active power counters: Pc1-Pc2 • Reactive power counters: Qc1-Qc2 • User counters: USR1-USR2-USR3-USR4 • 2...63 Harmonics of any voltage or current • Phase to neutral voltages vector angles • Phase to phase voltages vector angles • Phasor vector diagram COMMUNICATIONS: • Modbus RTU RS-485 • Modbus TCP/IP • SNMP • TCP/IP server • TCP/IP client • UDP • SMTP • Embedded web server • Web monitoring • Web programming • GSM-SMSsending • e-mail sending • Central Monitoring through IP • Free configuration & monitoring software COMMUNICATION PORTS: • Ethernet 10/100Mb • RS-485 isolated (Modbus RTU) • RS-232 for external GPRS modem • USB Host for data recording on flash memory • USB Device for PC connection TECHNICAL SPECIFICATIONS: Power Supply Input: 50-305VAC/19-400VDC Power Consumption: < 5 VA Measurement Input Range: Voltage: 5 - 300 V AC (L-N) 10 - 520 V AC (L-L) Current: 0.1 - 5.5 A AC Frequency: 30 - 500 Hz Accuracy: Voltage: 0.2%+1digit Current: 0.2%+1 digit Frequency: 0.1%+1 digit Power (kW,kVAr): 0.4%+2digit Power factor: 0.2%+1digit Measurement Range: CT range: 5/5A to 10’000/5A VT range: 0.1/1 to 200.0/1 kW range: 0.1 kW to 6.5MW Voltage burden: < 0.1VA per phase Current burden: < 0.5 VA per phase Ethernet Port: 10/100 Mbits USB Device: USB 2.0 Full speed USB Host: USB 2.0 Full speed RS-485 Port: selectable baud rate Modem Port: logic level serial data, selectable baud rate Relay Outputs: 5A @ 250VAC/30VDC Digital Inputs: Active level: 5 to 30V-DC or AC Min pulse: 250ms. Isolation: 1000V AC, 1 minute Operating Temperature: -20°C to +50°C (-4 to +122 °F). Storage Temperature: -30°C to +70°C (-22 to +158 °F). Maximum humidity: 95% non-condensing. Degree of Protection: IP 65 (Front Panel) with optional gasket IP 30 (Back panel) Enclosure: Non-flammable, ROHS compliant Installation: Flush mounting with rear brackets Dimensions: 102x102x53mm (WxHxD) Panel Cutout: 92x92mm Weight: 350 gr UL-CSA Certification: UL 61010-1, 3rd Edition, 2012-05, CAN/CSA-C22.2 File: E475547, Vol. D1 EU Directives: 2006/95/EC (LVD) 2004/108/EC (EMC) Norms of reference: EN 61010 (safety) EN 61326 (EMC) WE DO NOT SHIP THIS PRODUCT TO USA AND CANADA