The QI-300-V-485 is a AC/DC current transformer, galvanically isolated from the measuring circuit. The device is in the function and appearance is very similar to a standard active TA, however, able to measure the DC component and AC RMS. The transformer is equipped with RS485 Modbus serial output and an analog output 0-10V. Through the serial port can be configured freely span and zero and assign the Modbus address.

Features

• Supply: 12-30vDC, Protection against polarity reversal and over- temperature, Max 20mA
• Protection:  IP20
• Accuracy: 0,5% F.S.
• Resolution: 12 bit
• Temperature Coefficient: < 200 ppm/°C
• Response Time: 1000 ms
• Hysteresis: 0,15% F.S.
• Working Temperature: -15 to +65°C
• Measurement: RMS or bipolar
• Range: ±300A rms
• Crest Factor: 2
• Frequency: DC or from 20…1000 Hz
• Isolation: 3 kV on bare wire
• Over-range: 2.000 A pulse / 300 A continuous
• Output: 0-10vDC (min. load >2Kohm) and RS485 Modbus RTU