Welcome to this episode on voltage transducer wiring operation. We will use the Hangzhi HCV 500 transducer as an example to demonstrate the wiring operation of voltage transducers.
The equipment used for this wiring test includes:

• A programmable DC standard source that developed and produced by Hangzhi for measuring output.
• A high-precision 6½-digit multi-meter for measuring the transducer’s output voltage.
• A transducer power supply: providing 15V power to the transducer.
• The HCV 500 high precision voltage transducer.

The Hangzhi HCV 500 high precision voltage transducer features a PC injection molded case. The top panel is engraved with the Hangzhi logo and the overall design follows the internationally mainstream black color scheme. The front and back of the case are equipped with mounting holes, allowing flexible vertical or horizontal installation based on the installation environment. The primary and secondary side interfaces are arranged at front and rear side. The red and blue terminals are for the primary side, while the opposite side features Phoenix terminals for the secondary side.

Beside the secondary side Phoenix terminals, there is a transducer operation indicator light to display the transducer’s working status. Directly under the indicator light there is a reserved zero-adjustment hole for maintenance use.

The primary side of the voltage transducer consists of red and blue terminals: the red terminal is connected to the positive pole of the measured voltage, and the blue terminal is connected to the negative pole of the measured voltage.

The secondary side output is a 4-pin Phoenix terminal, arranged from left to right as follows:

• “+”: Connect to the +15V power supply.
• “-“: Not connected.
• OUT: Signal output terminal.
• GND: Power ground (0V), also serving as the signal output common terminal.