ISKRA MC 640 Multifunction Meter
The MC640 / MC646 multifunction meter is intended for monitoring and measuring electrical quantities of a three-phase electric-energy distribution system. The meter is provided with 32 program adjustable alarms, up to four input or output modules and communication. With the RS 485 communication the meter can be set and measurements can be checked. The meter functions also as an energy meter, with the additional function of cost management by tariffs. A tariff input or a tariff clock can be set. At tariff clock setting, four periods and four work groups as well as electric energy price for each period and work groups (16 different price periods) are available. Additionally 20 places are available for setting holidays or days when special tariff rules are valid. As anenergy meter it records energy in all four quadrants and four tariffs.
Features:
• Measurements of instantaneous values of more than 150 quantities (U, I, P, Q, S, PF, PA, f, f, MD, energy, energy cost by tariffs, etc.)
• Accuracy class 0.5
• Harmonic analysis of phase, phase-to-phase voltages and currents up to the 31st harmonic
• Measurements of 40 minimal and maximal values in different time periods
• 32 adjustable alarms
• Frequency range from 16 Hz to 400 Hz
• RS 485 communication up to 115,200 bit/s
• MODBUS and DNP3 communication protocol
• Up to 4 (2+2) inputs or outputs (pulse outputs, alarm outputs, tariff inputs, digital inputs)
• Universal power supply 48-276V AC, 20-300V DC
• Graphical LCD 128 x 64 dots with illumination
• Direct 65A connection (MC646)
• CT 5A connection (MC640)
• Housing for DIN rail mounting
• Adjustable tariff clock, display of electric energy consumption in optional currency
• User-adjustable display of measurements
• Multilingual support
• User-friendly PC MiQen software
• Protective cover for terminals (possible seal up against non-authorized access)