Loop Powered Current Transmitter

FAQs About QI-300-I Loop Powered Current Transmitter

1. What is a QI-300-I loop powered current transmitter?

The QI-300-I is a versatile loop powered current transmitter from Qeed USA, designed to measure both AC and DC currents. It provides a two-wire 4-20mA output and features selectable input ranges between 150 and 300 Amps, making it ideal for various industrial applications.

2. How does the QI-300-I loop powered current transmitter work?

The QI-300-I uses a Hall effect current transformer to monitor the current passing through a conductor. By sliding the conductor through the hole in the transmitter, the Hall effect sensor measures the current and converts it to a 4-20mA output signal, which can be read by a monitoring system.

3. What are the input ranges available for the QI-300-I?

The QI-300-I loop powered current transmitter offers selectable input ranges of 0-150 Amps and 0-300 Amps, which can be adjusted using a DIP switch.

4. What power supply is required for the QI-300-I?

The QI-300-I requires a power supply of 11 to 35 Vdc. A 24 Vdc loop power supply is typically provided to terminals 1 and 2, ensuring the transmitter operates efficiently and provides a 4-20mA current loop output.

5. Can the QI-300-I be used to measure both AC and DC currents?

Yes, the QI-300-I is capable of measuring both AC True RMS and DC currents. It also supports bipolar direction measurement, where the zero point is set at 12 mA.

6. How is the QI-300-I mounted?

The QI-300-I loop powered current transmitter can be mounted on a DIN rail or using screws. It can be installed horizontally or vertically, offering flexibility in different installation environments.

7. What are the dimensions of the QI-300-I?

The QI-300-I has compact dimensions of 4 inches by 3.5 inches by 1.2 inches (99 x 89 x 30 mm), making it suitable for various installation spaces.

8. What type of housing material does the QI-300-I use?

The QI-300-I is housed in a self-extinguishing material, ensuring safety and durability in industrial environments.

9. What is the operating temperature range for the QI-300-I?

The QI-300-I operates within a temperature range of 5°F to +149°F (-15°C to +65°C) and can be stored in temperatures ranging from -40°F to +185°F (-40°C to +85°C).

10. Is the QI-300-I compliant with EMC standards?

Yes, the QI-300-I loop powered current transmitter complies with EMC standards, including EN 61000-6-2 for immunity and EN 61000-6-4 for emission.

11. How accurate is the QI-300-I?

The QI-300-I offers a high accuracy of 0.5% full-scale, ensuring precise current measurement for reliable data transmission in industrial applications.