How to Use YHDC Current Sensor - HSTS016L- 200A : Examples, Pinouts, and Specs

The YHDC HSTS016L-200A is a high-precision Hall effect split-core current sensor designed to measure currents up to 200A. This sensor is ideal for applications requiring non-intrusive current measurement, such as power monitoring, renewable energy systems, electric vehicles, and industrial automation. Its split-core design allows for easy installation without disconnecting existing wiring, making it a versatile and user-friendly solution.

• Power monitoring in residential, commercial, and industrial settings
• Renewable energy systems (e.g., solar inverters, wind turbines)
• Electric vehicle charging stations
• Industrial automation and motor control
• Overcurrent protection and fault detection

Below are the key technical details of the YHDC HSTS016L-200A current sensor:

The HSTS016L-200A has a simple 3-pin interface for easy integration into circuits. The pinout is as follows:

1. Power Supply: Connect the VCC pin to a stable 5V DC power source and the GND pin to the ground of your circuit.
2. Current Measurement: Open the split-core clamp and place it around the conductor carrying the current to be measured. Ensure the conductor is centered within the core for optimal accuracy.
3. Output Signal: The VOUT pin provides an analog voltage proportional to the current flowing through the conductor. This output can be read using an ADC (Analog-to-Digital Converter) on a microcontroller or data acquisition system.

• Polarity: Ensure the current flow direction matches the sensor's orientation markings for accurate readings.
• Calibration: For precise measurements, calibrate the sensor by comparing its output with a known reference current.
• Noise Reduction: Use proper shielding and grounding techniques to minimize noise in the output signal.
• Maximum Current: Do not exceed the 200A maximum current rating to avoid damaging the sensor.

The HSTS016L-200A can be easily interfaced with an Arduino UNO to measure current. Below is an example circuit and code:

• Connect the VCC pin of the sensor to the 5V pin on the Arduino.
• Connect the GND pin of the sensor to the GND pin on the Arduino.
• Connect the VOUT pin of the sensor to the A0 analog input pin on the Arduino.

// YHDC HSTS016L-200A Current Sensor Example Code
// This code reads the sensor's output and calculates the current in amperes.

const int sensorPin = A0;  // Analog pin connected to VOUT of the sensor
const float sensitivity = 0.025; // Sensitivity in volts per ampere (example: 0.025V/A)
const float vRef = 5.0;    // Reference voltage of the Arduino (5V)
const int adcResolution = 1024; // ADC resolution (10-bit for Arduino UNO)

void setup() {
  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  int sensorValue = analogRead(sensorPin); // Read the analog value from the sensor
  float voltage = (sensorValue * vRef) / adcResolution; // Convert ADC value to voltage
  float current = voltage / sensitivity; // Calculate current in amperes

  // Print the current value to the Serial Monitor
  Serial.print("Current: ");
  Serial.print(current);
  Serial.println(" A");

  delay(1000); // Wait for 1 second before the next reading
}

• Adjust the sensitivity value in the code based on the sensor's datasheet or calibration results.
• Ensure the Arduino's ADC reference voltage matches the actual supply voltage for accurate readings.

1. No Output Signal

   • Cause: Incorrect wiring or insufficient power supply.
   • Solution: Verify all connections and ensure the sensor is powered with 5V DC.

2. Inaccurate Readings

   • Cause: Improper calibration or external noise interference.
   • Solution: Calibrate the sensor using a known reference current and minimize noise by using shielded cables.

3. Output Voltage Exceeds Expected Range

   • Cause: Current exceeds the sensor's 200A limit.
   • Solution: Ensure the measured current is within the sensor's specified range.

4. Sensor Overheating

   • Cause: Prolonged exposure to high currents or ambient temperatures.
   • Solution: Operate the sensor within its specified temperature and current limits.

Q: Can the HSTS016L-200A measure DC current?
A: No, this sensor is designed for AC current measurement only.

Q: How do I ensure accurate readings?
A: Center the conductor within the split-core, calibrate the sensor, and minimize noise in the circuit.

Q: Is the sensor compatible with 3.3V systems?
A: The sensor requires a 5V power supply, but its output can be interfaced with 3.3V systems using a voltage divider or level shifter.

Q: Can I use this sensor for high-frequency applications?
A: The sensor is suitable for standard AC power frequencies (50/60Hz). For high-frequency applications, consult the manufacturer for compatibility.