QI-300-V-485: TRMS AC / DC, 300A, 0-10V output and RS485 Modbus Current transformer

The QI-300-V-485 is a direct and alternating current transformer, galvanically isolated from the measuring circuit. The device is in function and appearance quite similar to a standard active CT, but capable of measuring the DC and AC component TRMS.

The transformer is equipped with an RS485 Modbus serial output and an analog 0-10V output. Through the serial port, it is possible to freely configure the span and zero and assign the Modbus address.

Features

• POWER SUPPLY: 12… 30Vdc, Reverse polarity and overtemperature protection
• CONSUMPTION: Maximum 20mA
• DEGREE OF PROTECTION: IP20
• PRECISION CLASS: 0.5% F.S.
• RESOLUTION: 12 bit
• TEMPERATURE COEFFICIENT: <200 ppm / ° C
• RESPONSE SPEED: 1000 ms
• WORKING TEMPERATURE: -15… + 65 ° C
• TYPE OF MEASUREMENT: RMS (monopolar) or DC
• CAPACITIES: 300 A AC / DC, custom scales settable via RS485
• CREST FACTOR: 1.4
• PASS BAND: DC or 20… 2000 Hz
• INSULATION: 3 kV on bare cable
• OVERLOAD: 2kA impulsive, 300A continuous
• OUTPUT: 0… 10V and RS485