How to Use Kamoer CKP-DC-S08 NKP-DC-S08 Peristaltic Pump 12V-0.25A 55ml/min [Bill Ludwig] : Examples, Pinouts, and Specs

The Kamoer CKP-DC-S08 / NKP-DC-S08 Peristaltic Pump is a compact and efficient pump designed for precise fluid delivery. It operates at 12V DC with a current of 0.25A and delivers a flow rate of 55ml/min. This pump is ideal for applications requiring accurate and contamination-free fluid transfer, such as laboratory experiments, medical devices, food processing, and industrial automation.

• Laboratory fluid handling and chemical dosing
• Medical equipment for precise liquid delivery
• Food and beverage processing
• Industrial automation systems
• Aquariums and hydroponic systems for nutrient dosing

The following table outlines the key technical details of the Kamoer CKP-DC-S08 / NKP-DC-S08 Peristaltic Pump:

The pump has two electrical connections for operation:

1. Power Supply: Connect the pump to a stable 12V DC power supply capable of providing at least 0.25A.
2. Polarity: Ensure correct polarity by connecting the red wire to the positive terminal and the black wire to the ground.
3. Fluid Tubing: Attach the silicone tubing to the pump's inlet and outlet ports. Ensure the tubing is securely fastened to prevent leaks.
4. Flow Direction: The pump's flow direction is determined by the polarity of the power supply. Reversing the polarity will reverse the flow direction.
5. Control: For automated control, the pump can be connected to a microcontroller (e.g., Arduino) via a relay or MOSFET circuit.

• Avoid Dry Running: Do not operate the pump without fluid in the tubing, as this can damage the pump.
• Voltage Regulation: Use a regulated 12V DC power supply to ensure stable operation.
• Flow Rate Calibration: If precise dosing is required, calibrate the flow rate by measuring the output over a fixed time period.
• Maintenance: Periodically inspect and replace the silicone tubing to maintain performance and prevent leaks.
• Environmental Conditions: Operate the pump within the specified temperature range (0°C to 40°C) to avoid damage.

Below is an example of how to control the pump using an Arduino UNO and a relay module:

// Example code to control the Kamoer CKP-DC-S08 / NKP-DC-S08 Peristaltic Pump
// using an Arduino UNO and a relay module.

// Define the relay pin connected to the Arduino
const int relayPin = 7;

void setup() {
  // Set the relay pin as an output
  pinMode(relayPin, OUTPUT);

  // Start with the pump off
  digitalWrite(relayPin, LOW);
}

void loop() {
  // Turn the pump on for 5 seconds
  digitalWrite(relayPin, HIGH); // Activate the relay to power the pump
  delay(5000);                  // Wait for 5 seconds

  // Turn the pump off for 5 seconds
  digitalWrite(relayPin, LOW);  // Deactivate the relay to stop the pump
  delay(5000);                  // Wait for 5 seconds
}

Note: Ensure the relay module is rated for the pump's voltage and current. Use a flyback diode across the pump terminals to protect the circuit from voltage spikes.

1. Pump Not Running

   • Cause: Incorrect wiring or insufficient power supply.
   • Solution: Verify the wiring connections and ensure the power supply provides 12V DC and at least 0.25A.

2. Low or No Flow

   • Cause: Blocked or improperly connected tubing.
   • Solution: Check the tubing for blockages or kinks and ensure it is securely attached to the pump.

3. Pump Overheating

   • Cause: Prolonged operation or operation outside the specified temperature range.
   • Solution: Allow the pump to cool down and ensure it is operated within the 0°C to 40°C range.

4. Reversed Flow

   • Cause: Incorrect polarity of the power supply.
   • Solution: Reverse the power supply connections to correct the flow direction.

Q: Can the pump handle corrosive fluids?
A: The pump's tubing is made of silicone, which is resistant to many chemicals. However, verify compatibility with the specific fluid before use.

Q: How do I adjust the flow rate?
A: The flow rate is fixed at 55ml/min. To adjust it, you can use a PWM controller or vary the pump's operating time.

Q: Can the pump be used continuously?
A: While the pump is designed for long-term use, continuous operation may reduce its lifespan. Periodic rest is recommended for optimal performance.

Q: Is the pump waterproof?
A: No, the pump is not waterproof. Avoid exposing the motor and electrical connections to water.