12V Electronic Temperature Controller User Manual

1. Product Overview

The Weewooday 12V Electronic Temperature Controller is a versatile and reliable module designed for precise temperature management in various applications. It supports both heating and cooling modes, making it ideal for maintaining desired temperatures in environments ranging from aquariums to industrial equipment. The module features a clear dual-color LED display for easy monitoring of current and set temperatures, and comes with a durable waterproof NTC sensor probe.

Figure 1.1: Two 12V Electronic Temperature Controllers with sensor probes.

2. Key Features

• Wide Temperature Range: Measures temperatures from -50 to 110℃ (-58 to 230℉).
• High Precision: Control and backlash precision of 0.1 Celsius.
• Dual Color LED Display: Simultaneously displays measured temperature (red) and set temperature (blue).
• Heating/Cooling Modes: Adaptable for various temperature control needs.
• Waterproof NTC Probe: Equipped with a 10K 0.5% NTC waterproof sensor for reliable outdoor or submerged use.
• Compact Design: Module size of 48 x 29 x 32 mm (1.89 x 1.14 x 1.26 inches) for easy integration.
• Fast Refresh Rate: Temperature readings refresh every 0.5 seconds.
• High Temperature Protection: Built-in protection for enhanced safety.
• Broad Application: Suitable for intelligent home, industrial equipment, household appliances, automatic irrigation, automobiles, aquariums, and more.

3. Setup and Wiring

3.1 Component Identification

Figure 3.1: Front and Back View of the Controller.

The module consists of a front panel with the dual LED display and control buttons, and a back panel with a terminal block for electrical connections. The NTC sensor probe connects via a dedicated port.

3.2 Wiring Diagrams

Proper wiring is crucial for the safe and correct operation of the temperature controller. Refer to the diagrams below for common wiring configurations.

Figure 3.2: Wiring Configurations.

Configuration 1: Temperature Control and Load with Shared 12V Power

• Connect the 12V input positive (+) to the controller's positive input terminal.
• Connect the 12V input negative (-) to the controller's negative input terminal.
• Connect the load's positive (+) to the controller's normally open (NO) or normally closed (NC) relay terminal, depending on desired operation (heating/cooling).
• Connect the load's negative (-) directly to the 12V input negative (-).
• Ensure the NTC sensor probe is securely connected to its dedicated port.

Configuration 2: Load and Temperature Control with Different Power Sources

• Connect the 12V input positive (+) for the controller to its positive input terminal.
• Connect the 12V input negative (-) for the controller to its negative input terminal.
• Connect the load's power input positive (+) to the controller's normally open (NO) or normally closed (NC) relay terminal.
• Connect the load's power input negative (-) to the common (COM) terminal of the relay.
• Ensure the NTC sensor probe is securely connected to its dedicated port.

Important: Always ensure power is disconnected before performing any wiring. Incorrect wiring can damage the device or connected equipment.

4. Operating Instructions

4.1 Temperature Setting

To set the desired temperature:

1. Press the SET button. The LED display showing the set temperature will begin to flash.
2. Use the (+) and (-) buttons to adjust the set temperature value.
3. Once the desired temperature is reached, wait for approximately 3 seconds. The module will automatically save the new parameter and exit the setting mode.

Figure 4.1: Dual Color LED Display.

4.2 Mode Selection (Heating/Cooling)

The controller can operate in either heating or cooling mode. The specific method for switching between modes typically involves accessing a parameter setting (e.g., P0 or P1) through the SET button. Consult the detailed parameter setting guide (often found by searching for "Ketotek KTF0091" manual online, as mentioned in customer reviews) for specific instructions on adjusting these advanced settings.

5. Maintenance

To ensure the longevity and accurate performance of your temperature controller, follow these simple maintenance guidelines:

• Cleaning: Regularly wipe the module's surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
• Sensor Care: Keep the NTC sensor probe clean and free from debris. If used in liquids, ensure the probe is fully submerged and its cable is not kinked or damaged.
• Connection Check: Periodically inspect all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to inaccurate readings or device malfunction.
• Environmental Conditions: Operate the controller within its specified temperature and humidity ranges. Avoid exposing it to extreme conditions or direct sunlight for prolonged periods.

6. Troubleshooting

If you encounter issues with your temperature controller, refer to the following common problems and their potential solutions:

7. Technical Specifications

Figure 7.1: Detailed Specifications.

8. Warranty and Support

For warranty information, technical support, or any inquiries regarding your Weewooday 12V Electronic Temperature Controller, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase for warranty claims.