Electrotoad MK3 12V3A
The Electrotoad MK3 12V3A is a versatile DC bench power supply unit with a variable voltage output channel.
Description
The Electrotoad MK3 12V3A is designed to deliver approximately 40 Watts of DC power with precise control over voltage. The single output channel is equipped with a PWM module, ensuring accurate and reliable performance.
Applications
· Hobby and DIY projects
· Motor speed control
· LED light dimming
· Electroplating
· Electroetching
· Testing equipment
Key Features:
- Banana Socket Output Channel: Independently controllable 1-12 Volt, 3 Amp output
- Overcurrent Detection and Reset Above 4 Volts: Provides protection for high-voltage/current scenarios.
- Easily Replaceable Parts: Simplified maintenance, repairs and modifications.
- ABS Front Panel: Durable and user-friendly design
- RGB Cooling Fan: Efficient heat dissipation
- UK Design and Assembly: Quality assurance with local manufacturing and assembly
- Dedicated Support: Assistance available when needed
Limitations and Considerations before Operation:
- Inductive Loads: Users must install flyback diode near load before use with inductive loads
- Short Circuit Protection: Short circuit protection is limited and continuous shorts may damage PWM and/or ammeter.
- Prolonged Use at High Current: To avoid damage caused by overheating of components, keep current below 2.5 Amps during prolonged use. Regularly check the power adapter plug for signs of excessive heat during operation.
Overcurrent Module:
The Overcurrent Module is pre-set during assembly with the following settings (do not adjust):
- Current Limit: Between 3 and 4 Amps
- Time Before Disconnect: Approximately 1-2 seconds
- Time Before Reset: Approximately 2-5 seconds
- Overcurrent module is less effective at lower voltages
Status indicators are visible through the top vent:
- Green LED: Normal operation
- Red LED: Overcurrent detected
If the module fails to reset, power cycle the unit using the main switch on the AC input.
General Connections
- 12V 3 Amp Power Adapter: Supplies DC power to the main rocker switch/unit.
- Distribution Board: Distributes power to the RGB cooling fan and the overcurrent module input.
- Overcurrent Module: Output is connected to the PWM module
- PWM Module: Outputs are connected to analogue voltmeters.
- Analogue Voltmeter: Negative terminals connected to negative output.
- Analogue Ammeters: Connected in series between the positive terminals of the voltmeters and the positive outputs.
All connections are made using 18-gauge silicone wire and crimp terminal connectors.
Note: For a more in-depth description of connections, please visit the 'MK3 12V3A Maintenance’ page.
Safety Precautions:
· Ventilation: Ensure the unit is well-ventilated during operation to prevent overheating
· Regular Inspection:Periodically check for any signs of wear or damage to the wires, connectors, and modules
· Proper Handling: Handle the unit with care, especially during maintenance or replacement of parts
· Not for Use by or Around Individuals with Pacemakers: or other electrically controlled medical equipment
· Use Within Specified Parameters:To avoid damage and other incidents
· Competent Users Only: Ensure proper understanding and handling of the unit
Maintenance Tips:
· Cooling Fans: Keep the cooling fans free from dust and debris to ensure efficient operation.
· Calibration: Regularly check and calibrate the voltmeters and ammeters to maintain accuracy.
· Component Replacement: Follow the replacement guide for PWM and analogue ammeters if they become damaged. Visit www.dodgedesigns.co.ukfor details.
· Contact us:If you are unsure of anything, or would like the unit to be serviced or fixed by us then feel free to contact us to make arrangements or receive additional help. Email – electrotoadhelp@gmail.com