YIDI STC Series Digital Temperature and Humidity Controller User Manual

1. Introducció

This manual provides detailed instructions for the installation, operation, and maintenance of the YIDI STC Series Digital Temperature and Humidity Controllers. These versatile devices are designed for precise control of temperature and/or humidity in various applications, including domestic freezers, refrigerators, industrial chillers, steamers, industrial equipment, water heaters, fans, cold storage, greenhouses, aquariums, and hatcheries.

The STC series includes several models, each tailored for specific control needs:

• STC-1000: Digital Temperature Controller (Heating and Cooling)
• STC-3000: Digital Temperature Controller with ℃/℉ Display (Heating and Cooling)
• STC-3008: Dual LED Digital Temperature Controller (Dual Temperature Control)
• STC-3018: Digital Microcomputer Temperature Controller with ℃/℉ Display (Temperature Control)
• STC-3028: LED Digital Temperature Humidity Controller (Temperature and Humidity Control)

Please read this manual thoroughly before operating the device to ensure safe and efficient use.

2. Normes de seguretat

Perill:

1. Distingiu estrictament el cable de baixada del sensor, el cable d'alimentació i la interfície del relé de sortida entre si. Prohibiu connexions incorrectes o sobrecarregar el relé.
2. Prohibit connecting the wire terminals without electricity cut-off. Always ensure power is disconnected before wiring.

Avís:

Prohibit using the machine under environments of excessive dampness, high temperature, strong electromagnetism interference, or strong corrosion.

Avís:

1. La font d'alimentació ha d'ajustar-se al voltage value indicated in the instruction for your specific model.
2. To avoid interference, the sensor down-lead and power wire should be kept at a distance from each other.

3. Especificacions

General Specifications (Applicable to all models unless specified):

• Nom de marca: YIDI
• Ús: llar
• Certificació: CE, RoHS
• Mida de la pantalla: 1.9 polzades i menys
• Longitud del cable: 1m (for NTC Probe Sensor)
• Bateria inclosa: No
• És un dispositiu intel·ligent: No

Especificacions específiques del model:

Dimensions:

4. Configuració

Muntatge:

The controllers are designed for panel mounting. The standard mounting hole size for all models is 71x29mm. Ensure sufficient space behind the panel for wiring and ventilation.

Esquemes de cablejat:

Important: Always disconnect power before performing any wiring. Refer to the safety regulations section before proceeding.

STC-1000 Wiring:

STC-3000 Wiring:

STC-3008 Wiring:

STC-3018 Wiring:

STC-3028 Wiring:

5. Instruccions de funcionament

Panel Illustrations:

Indicator Light Status (STC-1000 & STC-3000):

Instruccions clau d'operació:

STC-1000 Key Operation:

1. Check Parameter: Under normal working status, press "up" key to display temperature setting value; press "down" key to display the difference value.

2. Set Parameter: Under normal working status, press "S" key for 3 seconds or more to enter parameter modifying mode. The "Set" indicator light will turn on, and the screen displays "F1". Use "up" or "down" keys to navigate menu items (F1-F4). Press "S" to view the parameter value. To adjust, press and hold "S" while pressing "up" or "down". After setting, press the power key to save and exit. If no key operation within 10 seconds, changes are not saved.

3. Restore System Data: If "Er" is displayed upon power-up, press any key to restore default values and enter normal working mode. It is advised to reset parameters after this.

STC-3000 Key Operation:

1. View Paràmetre: Under normal working status, press "▲" once to display the temperature set value, press "▼" once to display the temperature difference set value. The display returns to normal after 2 seconds.

2. Set Parameter: Press and hold "S" for more than 3 seconds to enter parameter modification mode. The indicator light turns on, and the display shows "F1". Use "▲" or "▼" to navigate menu items (F1-F5). Press "S" to view the parameter value. To adjust, press and hold "S" while pressing "▲" or "▼". After setting, press the power button to save and exit. If no key operation within 10 seconds, changes are not saved. "Er" indicates a saving error.

3. Repair System Data: If "ER" is displayed on power-up, press any key to restore default parameters and resume normal operation. Reset parameters as needed.

℃/℉ Conversion: The STC-3000 supports both Celsius and Fahrenheit. Refer to parameter F5 in the menu. An image illustrating the conversion is provided below.

STC-3008 Key Operation:

1. Check Parameter: Under normal working status, press "up" key to display temperature setting value; press "down" key to display the difference value.

2. Set Parameter: Press "UP ①" and "UP ②" buttons simultaneously for 3 seconds to enter setting mode. The display shows "P0". Use "UP ②" and "DOWN ②" to adjust the parameter. Navigate through P0-P3 using "UP ①". After adjustment, wait a few seconds for automatic exit. For example, P0 is the first group temperature delay (0-60 min, default 0), P1 is the second group temperature delay (0-60 min, default 0), P2 is high temperature alarm (default 120℃), P3 is low temperature alarm (default -55℃).

3. Restore System Data: Press "Down ①" and "Down ②" buttons simultaneously for 3 seconds to restore factory settings.

Instrucció de funcionament:

• Set Start Temperature: Long press "UP ①" button for 3 seconds, "①" display flashes. Use "UP" or "DOWN" to set the start temperature (default 25°C).
• Set Stop Temperature: Long press "DOWN ①" button for 3 seconds, the display flashes. Use "UP" or "DOWN" to set the stop temperature (default 40°C).
• Repeat for the second temperature control group using "UP ②" and "DOWN ②".

Mode de calefacció: Start temperature < Stop temperature
Mode de refrigeració: Start temperature > Stop temperature

STC-3018 Key Operation:

1. Check Parameter: Under normal working status, the real-time temperature is displayed. Press "Set" key (screen flashes), then "up" key to display temperature setting value; press "down" key to display the difference value.

2. Set Parameter: Long press "Set" key for 5 seconds to enter inner setting. Press "Ent" button to go back during setting. Long press "Ent" button to turn devices on/off.

Heating and Cooling Mode Setting:

• Long press "up" key for 3 seconds to make the start temperature flash. Use "up" or "down" keys to set the start temperature.
• Long press "down" key for 3 seconds to make the stop temperature flash. Use "up" or "down" keys to set the stop temperature.

Mode de calefacció: Start temperature < Stop temperature
Mode de refrigeració: Start temperature > Stop temperature

Mode normal: Left red digital tube shows real-time temperature, right blue digital tube shows set temperature.
Mode de configuració: Left red digital tube shows setting mode, right blue digital tube shows setting contents.

P0: Working Mode: Set to "H" for heating, "C" for cooling.

P1: Return Difference Value: The temperature difference at which the thermostat reactivates after reaching the set temperature. E.g., for 37-40℃ heating, difference is 3 degrees.

P2: High Temperature Alarm: When temperature reaches this value, an alarm sounds and operation stops.

P3: Low Temperature Alarm: When temperature falls below this value, an alarm sounds and operation stops.

P4: Temperature Correction: Corrects discrepancies between tested and real-time temperature. Final corrected temperature = tested temperature + correction. E.g., if tested 25.6℃, real 25.8℃, set P4 to 0.2.

P5: Delay Start: Used for compressor refrigeration. Set to 3-6 minutes based on compressor size.

P6: ℃/℉ Adjustable: Adjust unit for display. Long press "up" key for 3 seconds to quickly switch between °C and °F.

3. Restore System Data: Press "up" and "down" keys together for 2 seconds to restore the system.

STC-3028 Key Operation:

1. Check Parameter: Under normal working status, press "up 1" button to display temperature setting value; press "down 1" button to display the temperature difference value. Press "up 2" button to display humidity setting value; press "down 2" button to display the humidity difference value.

2. Restore System Data: Under normal working status, press "down 1" and "down 2" buttons simultaneously for 3 seconds. The LED digital display will show "888", then return to test temperature, indicating system restoration.

Instrucció de funcionament:

• Set Start Temperature (Humidity): Press the "up" button once to display the starting temperature (humidity). Long press the "up" button for about 3 seconds, then use "up" and "down" buttons to set the required value.
• Set Stop Temperature (Humidity): Press the "down" button once to display the stop temperature (humidity). Long press the button for about 3 seconds, and the stop temperature (humidity) number flashes. Use "up" and "down" buttons to set the required value.
• Temperature/Humidity Correction: Press "up" and "down" buttons at the same time. If the tested value differs from the real-time value, use this function to correct it. The final value = tested value + correction value. Press "up" and "down" buttons together for about 3 seconds to display "0.0", then adjust the correction value. Wait 5 seconds for the real-time display to update.

6. Solució De Problemes

This section outlines common issues and their solutions for the YIDI STC series controllers.

• "EE" Display: This indicates a sensor error (open circuit or short circuit). All running functions will stop, and the buzzer will alarm. Press any key to silence the alarm. The system will return to normal display once the sensor error is resolved.
• "HH" Display: This indicates that the measured temperature exceeds the temperature measuring range. All running functions will stop, and the buzzer will alarm. Press any key to silence the alarm. The system will return to normal operation once the temperature returns within the normal measuring range.
• "Er" Display (STC-1000, STC-3000): This indicates an error occurred while saving parameters. The system will return to the normal display state after 3 seconds. It is recommended to reset parameters after this occurs.
• Lectures inexactes: If the displayed temperature or humidity is inconsistent with actual conditions, perform a calibration using the temperature/humidity correction function (P4 for STC-3018, specific steps for STC-3028).
• El controlador no respon: Assegureu-vos que la font d'alimentació coincideixi amb el volum especificattage (DC12V/DC24V/AC110V-220V). Check all wiring connections for looseness or incorrect placement.

7. Manteniment

To ensure the longevity and optimal performance of your YIDI STC series controller, follow these maintenance guidelines:

• Neteja: Keep the device clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
• Condicions ambientals: Avoid exposing the controller to environments with excessive dampness, high temperatures, strong electromagnetic interference, or corrosive substances.
• Cura del sensor: For models with NTC probe sensors (STC-1000, STC-3000, STC-3008, STC-3018), ensure the sensor is not submerged in water for extended periods unless specifically designed for such use. Regularly inspect the sensor and its cable for any signs of damage.
• Inspecció del cablejat: Reviseu periòdicament totes les connexions del cablejat per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
• Font d'alimentació: Ensure the power supply remains stable and within the specified voltagGamma e per al vostre model.

8. Consells d'usuari

• Configuració inicial: Before connecting any loads (heaters, coolers, humidifiers, dehumidifiers), it is recommended to power on the controller and familiarize yourself with the menu settings and parameter adjustments.
• Calibració: For applications requiring high precision, always perform a temperature and/or humidity calibration using a known accurate reference instrument.
• Configuració del retard: Utilize the compressor delay time (F3 for STC-1000/3000, P0/P1 for STC-3008, P5 for STC-3018) to protect refrigeration equipment from rapid cycling, which can extend its lifespan.
• Wiring Best Practices: When installing, route sensor cables and power cables separately to minimize electrical interference and ensure stable readings.
• Especificacions de l'aplicació: For critical applications like hatcheries or cold storage, consider setting high and low alarm limits (P2/P3 for STC-3008/3018) to be alerted to deviations.

9. Garantia i Suport

For warranty information, technical support, or service inquiries, please contact your original seller or the manufacturer directly. Keep your purchase receipt or proof of purchase handy as it may be required for warranty claims.