1. Uvod
The UMLIFE STC-1000 is a versatile digital temperature controller designed for precise temperature management in various applications. This device features a clear LED display, NTC 10K thermistor sensor, and dual relay outputs for both heating and cooling control. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and longevity of your temperature controller.
2. Proizvod je gotovview
2.1 Ključne karakteristike
- Digital LED display for clear temperature readings.
- Wide temperature measurement and control range: -50°C to 99°C.
- High control accuracy of 0.1°C.
- Dvostruki relejni izlaz za istovremenu kontrolu grijanja i hlađenja.
- Waterproof NTC 10K thermistor sensor for reliable measurements in various environments.
- Funkcija kalibracije temperature.
- Delay start protection for cooling control.
- ABS flame-retardant shell for enhanced safety.
2.2 Komponente i ekran
Familiarize yourself with the main components and display interface of the STC-1000 controller.

Slika 1: Front panel of the STC-1000 controller showing the digital display, power switch, UP button, Setting button, and DOWN button.
- Digital Display Window: Shows current temperature and parameter settings.
- Prekidač: Uključuje ili isključuje uređaj.
- Dugme GORE (▲): Povećava vrijednosti ili se kreće kroz menije.
- Dugme DOLJE (▼): Smanjuje vrijednosti ili se kreće kroz menije.
- Setting Button (S): Enters parameter setting mode.
- Cool Indicator: Illuminates when cooling relay is active.
- Indikator topline: Illuminates when heating relay is active.

Slika 2: Physical dimensions of the STC-1000 controller and the included 1-meter NTC 10K waterproof sensor probe.
3. Specifikacije
| Parametar | Vrijednost |
|---|---|
| Model | STC-1000 |
| Raspon mjerenja temperature | -50°C do 99°C |
| Raspon kontrole temperature | -50°C do 110°C |
| Preciznost mjerenja | ±0.2°C |
| Rezolucija | 0.1°C |
| Kontrolna tačnost | ±0.1°C |
| Senzor | NTC 10K L=1M waterproof probe |
| Napajanje | DC 12V |
| Potrošnja energije | <3W |
| Kapacitet kontaktnog releja | Cool (10A/220VAC), Heat (10A/220VAC) |
| Temperatura okoline | 0°C do 60°C |
| Temperatura skladištenja | -30°C do 75°C |
| Relativna vlažnost | 20-84% |
| Montažna veličina | 71mm x 29mm |
| Dimenzije proizvoda | 75 mm x 34.5 mm x 85 mm |
| Težina artikla | 7 unci (otprilike 198 g) |
| Materijal | akrilonitril butadien stiren (ABS) |
4. Postavljanje i instalacija
Važna sigurnosna napomena: Installation should be performed by qualified personnel. Ensure power is disconnected before wiring to prevent electric shock. Strictly distinguish between power supply, sensor, and relay interfaces. Maintain proper distance between sensor down-lead and power wires to avoid interference.
4.1 Dijagram ožičenja
Refer to the following diagram for correct wiring connections. This model operates on DC 12V power supply.

Slika 3: Wiring diagram for the STC-1000 12V temperature controller. Connections are for power supply, NTC sensor, heating relay, and cooling relay.
- Terminali 1 i 2: Power Supply (DC 12V).
- Terminali 3 i 4: NTC Sensor connection.
- Terminali 5 i 6: Heating Relay Output (Connect to heating device).
- Terminali 7 i 8: Cooling Relay Output (Connect to cooling device).
Ensure all connections are secure and insulated. Verify the power supply voltage matches the controller's requirement (DC 12V for this model).
4.2 Montaža
The STC-1000 is designed for panel mounting. Cut an opening of 71mm x 29mm in your panel. Insert the controller and secure it using the provided clips or mounting brackets.
5. Uputstvo za upotrebu
The STC-1000 operates in Celsius only. It cannot be switched to Fahrenheit.
5.1 Uključivanje/isključivanje napajanja
- Pritisnite Prekidač za napajanje button (marked with ⏻) to turn the controller on or off.
5.2 Podešavanje parametara temperature
The controller has two main temperature settings: the Set Temperature (ST) i Difference Temperature (DT), also known as hysteresis.
- To view the Set Temperature (ST): Kratko pritisnite Setting (S) button. The display will show the current set temperature.
- To modify the Set Temperature (ST):
- Pritisnite i držite Setting (S) dugme otprilike 3 sekunde dok ekran ne zatreperi.
- Koristite GORE (▲) or DOLJE (▼) buttons to adjust the desired set temperature.
- Pritisnite Prekidač za napajanje button to save the setting and exit, or wait for 10 seconds for it to save automatically.
5.3 Advanced Parameter Settings (F1-F4)
Za pristup i izmjenu naprednih parametara:
- Pritisnite i držite Setting (S) dugme otprilike 3 sekunde dok ekran ne zatreperi.
- Dok ekran treperi, pritisnite dugme Setting (S) button again (do not hold) to cycle through parameters F1, F2, F3, F4.
- Koristite GORE (▲) or DOLJE (▼) buttons to adjust the value of the selected parameter.
- Pritisnite Prekidač za napajanje button to save the setting and exit, or wait for 10 seconds for it to save automatically.
| Parametar | Opis | Domet | Default |
|---|---|---|---|
| F1 | Difference Temperature (Hysteresis): The difference between the set temperature and the temperature at which the relay switches off. | 0.3°C do 10°C | 2.0°C |
| F2 | Highest Set Point Limit: Limits the maximum adjustable set temperature. | Set Temp to 110°C | 110°C |
| F3 | Lowest Set Point Limit: Limits the minimum adjustable set temperature. | -50°C to Set Temp | -50°C |
| F4 | Kalibracija temperature: Adjusts the temperature reading to match a known accurate thermometer. | -10°C do 10°C | 0.0°C |
5.4 Heating and Cooling Modes
The STC-1000 automatically switches between heating and cooling based on the set temperature (ST) and difference temperature (DT).
- Način hlađenja: If the current temperature is higher than (ST + DT), the cooling relay activates. It deactivates when the temperature drops to ST.
- Način grijanja: If the current temperature is lower than (ST - DT), the heating relay activates. It deactivates when the temperature rises to ST.
6. Održavanje
- čišćenje: Obrišite površinu kontrolera mekom, suhom krpom. Ne koristite abrazivna sredstva za čišćenje ili rastvarače.
- Održavanje senzora: Ensure the NTC sensor probe is clean and free from debris. While waterproof, avoid unnecessary physical damage to the probe or cable.
- Veze: Periodically check wiring connections for tightness and signs of corrosion.
- Okruženje: Operate the controller within the specified ambient temperature and humidity ranges to ensure optimal performance and lifespan.
7. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Display shows "EE" | Sensor error or open circuit. | Check sensor connection. Replace sensor if damaged. |
| Display shows "HHH" | Temperature exceeds upper limit of measurement range. | Ensure the environment temperature is within the sensor's range (-50°C to 99°C). |
| Display shows "LLL" | Temperature falls below lower limit of measurement range. | Ensure the environment temperature is within the sensor's range (-50°C to 99°C). |
| Kontroler se ne uključuje | Nema napajanja ili netačna jačina zvukatage. | Check power connections and ensure DC 12V is supplied. |
| Grijanje/hlađenje se ne aktivira | Incorrect temperature settings (ST, DT), wiring error, or device malfunction. | Verify ST and DT settings. Check heating/cooling device wiring. Ensure the device is within operating parameters. |
8. Garancija i podrška
UMLIFE products are manufactured to high-quality standards. For warranty information or technical support, please contact UMLIFE customer service through your purchase platform or visit the official UMLIFE website. Please have your product model (STC-1000 12V) and purchase details ready when contacting support.
Za dodatnu pomoć, možete se obratiti i UMLIFE Store on Amazon.