Walfront STC-200
Walfront Digital Temperature Controller STC-200 Instruction Manual
Model: STC-200
1. Úvod a konecview
The Walfront Digital Temperature Controller STC-200 is a versatile microcomputer-controlled thermostat designed for precise temperature management in various applications. It supports both refrigeration and heating modes, making it suitable for homebrewing, fermenters, fridges, seafood machines, water heaters, and other equipment requiring accurate temperature regulation. This manual provides essential information for the safe and effective operation of your STC-200 controller.
2. Vlastnosti produktu
- Programovatelné parametry: User and administrator parameters are set separately for convenient operation.
- Ochrana proti zpoždění kompresoru: Features adjustable compressor delay to protect connected equipment.
- Digital Temperature Control Alarm: Includes alarm output for temperature deviations.
- Čistý digitální displej: Utilizes a digital tube display for clear and fast data reading.
- Refrigeration & Heating Modes: Equipped with mode conversion functions for cooling and heating.
- Alarm poruchy: Alerts users to sensor failures.
- Korekce teploty: Allows for calibration of temperature readings.

Obrázek 2.1: Přední strana view of the STC-200 Digital Temperature Controller, showing the digital display, 'Set' button, power button, and up/down arrows. The display shows "8.8." indicating its digital tube nature. Text overlay highlights key features like refrigeration/heating modes and user-friendly parameter settings.
3. Technické specifikace
| Parametr | Hodnota |
|---|---|
| Stav | Zbrusu nový |
| Materiál | ABS (akrylonitrilbutadienstyren) |
| Velikost montážního otvoru | Approx. 70.5 x 28.5 mm / 2.8 x 1.1 in |
| Teplota provozního prostředí | -30 °C ~ 80 °C |
| Relativní vlhkost | No more than 85% (non-condensable) |
| Napájecí zdroj Voltage | 220VAC ± 10% |
| Spotřeba energie | Méně než 5W |
| Teplotní rozsah | -40 °C ~ 99 °C |
| Rozsah regulace teploty | -40 °C ~ 70 °C |
| Rezoluce | 1 °C |
| Kapacita relé | 10A/250VAC/30VDC |
| Čistá hmotnost | Přibl. 161 g / 5.7 oz |

Obrázek 3.1: Strana view of the STC-200 Digital Temperature Controller illustrating its dimensions: approximately 70.5mm (2.8 inches) in height and 28.5mm (1.1 inches) in depth for the mounting hole.
4. Nastavení a instalace
4.1 Montáž
The STC-200 is designed for panel mounting. Ensure the mounting hole dimensions (70.5 x 28.5 mm) are accurately cut. Secure the controller using the integrated clips on the sides.

Obrázek 4.1: Strana view of the STC-200 controller, highlighting the orange mounting clips that secure the unit into a panel cutout.
4.2 Schéma zapojení a připojení
Pozor: This unit operates on 220VAC. Ensure all wiring is performed by a qualified professional and that the power supply is disconnected before making any connections. Distinguish the interface of the relay, sensor, and power supply wires. Keep sensor wires and power supply wires at a proper distance to avoid interference.
- Terminals 1, 2, 3: Load connection (10A/220VAC/30VDC).
- Terminals 4, 5: Temperature sensor connection.
- Terminals 6, 7: 220VAC Power Supply.

Obrázek 4.2: Zadní view of the STC-200 controller, displaying the wiring diagram. It clearly labels terminals for load (1, 2, 3), temperature sensor (4, 5), and 220VAC power supply (6, 7). A caution note emphasizes proper wiring and voltage ověření.

Obrázek 4.3: Detail view of the rear terminal blocks on the STC-200 controller, showing the seven screw terminals for electrical connections.
5. Návod k obsluze
5.1 Základní obsluha
- Zapnutí/vypnutí: Stiskněte tlačítko napájení (⑂) pro zapnutí nebo vypnutí jednotky.
- View Aktuální teplota: The main display shows the current measured temperature.
- Nastavit teplotu: Press the 'Set' button to enter temperature setting mode. Use the Up (▲) a dolů (▼) buttons to adjust the desired temperature. Press 'Set' again to confirm and exit.
5.2 Parameter Settings (F-Codes)
To access advanced parameters (F-codes), press and hold the 'Set' button for approximately 3 seconds until 'F0' appears. Use the Up (▲) a dolů (▼) buttons to navigate through the F-codes (F0, F1, F2, F3, F4, F5). Press 'Set' to view or modify the value of a selected F-code. Press 'Set' again to save changes and move to the next parameter, or press the power button to exit without saving.
- F0: Temperature Control Mode (0=Refrigeration, 1=Heating)
- F1: Temperature Hysteresis (Differential)
- F2: Limit alarmu vysoké teploty
- F3: Limit alarmu nízké teploty
- F4: Compressor Delay Time (in minutes)
- F5: Temperature Correction Value
5.3 Visual Guide: Setting Parameters
Video 5.1: This video demonstrates how to access and adjust the F-code parameters on the Walfront STC-200 Digital Temperature Controller. It shows the sequence of button presses to enter the setting menu, navigate through F0 to F5, and modify their values, such as setting the temperature control mode or compressor delay.
6. Údržba
- Čištění: Regularly wipe the unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Péče o senzor: Ensure the temperature sensor is clean and free from debris. Avoid bending or damaging the sensor cable.
- Podmínky prostředí: Operate the controller within the specified environmental temperature and humidity ranges to ensure longevity.
7. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Displej je prázdný | No power supply; Incorrect wiring; Unit failure. | Check power connection (220VAC). Verify wiring according to diagram. If problem persists, contact support. |
| "E1" or "HHH" error on display | Sensor fault (open circuit, short circuit); Temperature exceeds range. | Check sensor connection and integrity. Ensure operating temperature is within -40°C to 99°C. Replace sensor if damaged. |
| Odečet teploty je nepřesný | Sensor placement; Need for calibration. | Relocate sensor to a more representative area. Use F5 parameter to apply temperature correction. |
| Regulátor nepřepíná zátěž | Incorrect temperature setting; Relay failure; Load wiring issue. | Verify set temperature and hysteresis. Check load wiring (Terminals 1, 2, 3). Ensure F0 mode is correctly set (Refrigeration/Heating). |
8. Záruka a podpora
Walfront products are manufactured to high quality standards. For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official Walfront webstránky. Uschovejte si prosím doklad o koupi pro případ reklamace.
For further assistance, you may visit the Walfront Store on Amazon: Walfront Store
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