Network Quality and Energy parameters

Available versions

• QNA412/LAN: Quality network analyser with LAN/Ethernet and/or serial RS232 communication.
• QNA412/RS: Quality network analyser with serial communication RS232-RS485.
• QNA412/GPRS: Quality network analyser with data transmission on GPRS network and/or serial RS232.
• QNA413/RS: Voltage analyser with serial communication RS232-RS485.
• QNA413/GPRS: Voltage analyser with data transmission on GPRS network and/or serial RS232.

Main characteristics:

• TRMS analysis on single phase, three-phase systems with 3 or 4 wires, balanced and unbalanced;
• Voltage measurement on each half-cycle (10ms);
• Network parameters (voltage, current, active power, inductive power, capacitive power, apparent power, power factor, etc…);
• Analysis of the voltage and current harmonic components (CEI EN 61000-4-7) up to the 50° order (QNA412);
• Network disturbances provided by CEI EN 50160 as required by CEI EN 61000-4-30 class A: voltage swells, gaps and network interruptions, variations in width and frequency, unbalance among the phases (QNA412);
• Flicker measurement (CEI EN 61000-4-15) (QNA412);
• Measurement of neutral current and neutral-ground voltage (QNA412-QNA413);
• High immunity to electromagnetic disturbances, atmospheric discharges and transitory phenomena;
• Auto range function, which guarantees a high measurement accuracy on every voltage and current range;
• Internal memory for the memorization of the measured parameters (different according to the model);
• Internal rechargeable battery, which allows the data recording even in case of prolonged lack of power supply;
• Data communication through serial port RS232 and RS485 or through modem GSM/GPRS;
• Supplied software Power-Vision for the data transmission and analysis.