D52-2042 Voltmeter + Ammeter Display 200-450V CT External 99,9A

This voltmeter / ammeter on DIN rail can quickly measure the voltage and current of the device by passing the wire through the hole, especially for monitoring high-power devices at any time, thus ensuring our safety.

Specifications:
Measurement Range: AC 80-300 V 0,2-99,9 A
Power Supply: <0,2 V * A
Installation: DIN rail
Accuracy: 1% 2 digits
Measurement Speed: approximately 2 times per second
Display Type: 0,5″ digital LED tube
Display Size: 5 * 4 cm / 2 * 1,6 inches
Installation Width: = 3P (DZ47 / C45, switch air position)
Product Dimensions: 8 * 5,5 * 6,5 cm / 3,1 * 2,2 * 2,6 inches
Product Weight: 124 g / 4,4 ounces
Package Size: 8,8 * 7,4 * 6,1 cm / 3,5 * 2,9 * 2,4 inches
Package weight: 144 g / 5.1 oz

Package includes:
1 * Digital Voltmeter / Ammeter on DIN rail

Tutorial: How to use D52-2042 Voltmeter + Ampermeter

This voltmeter/ampermeter is ideal for measuring voltages from 200 to 450V and currents up to 99.9A. Useful for projects requiring precise voltage and current measurements.

What you need

• D52-2042 Voltmeter + Ampermeter
• Arduino
• Power Supply
• Test Lead

Steps

1. 1. Check that the voltmeter/ampermeter is functioning correctly.
2. 2. Connect the test lead to the power supply.
3. 3. Connect the test lead to the external CT of the voltmeter.
4. 4. Turn on the power supply.
5. 5. Connect the external CT to pin A0 of the Arduino.
6. 6. Upload the following code to your Arduino.
7. 7. Check the datasheet for maximum voltage and current specifications.
8. 8. Read the voltage and current values on the display.

Example code

void loop() {
  float voltage = analogRead(A0) * (5.0 / 1023.0);
  float current = voltage / 0.1; // Calcolo della corrente
  Serial.println(current);
}

Mini project

Build a current monitor for your power supply system. Connect the D52-2042 to the system and read the current values every 5 seconds.

Common mistakes

• Connecting the CT to the wrong Arduino pin.
• Forgetting to check the voltage specifications.
• Not reading the datasheet carefully.
• Forgetting to calibrate the voltmeter/ammeter.

Recommended accessories

• Arduino Uno
• 5V Power Supply
• External CT 200-450V
• Test Lead

Frequently asked questions

The display does not show correct values.
Check connections and voltage specifications. Verify if the CT is correctly connected.

How to calibrate the voltmeter/ammeter?
Check the datasheet for specific instructions. Generally, use a known calibration source.

Can I use this module with Arduino Mega?
Yes, but verify that the pin used supports power.