1. Introducció
The Elitech STC-1000HX is an advanced digital temperature controller designed for precise temperature management in various applications. It features both cooling and heating modes with automatic switching, allowing for versatile use. Key functionalities include temperature unit switching between Celsius and Fahrenheit, temperature control based on setpoint and differential, temperature calibration, a cooling output protection delay, and a sensor failure alarm. This controller also includes an RS-485 communication interface for future integration with an Elitech IoT module, enabling remote control capabilities.

Figure 1: Elitech STC-1000HX Digital Temperature Controller
2. Característiques
- Cooling and Heating Modes: Automatic switching between cooling and heating functions.
- Conversió d'unitats de temperatura: Canvia fàcilment entre Celsius (°C) i Fahrenheit (°F).
- Control precís: Temperature control based on user-defined setpoint and differential.
- Calibració de temperatura: Allows for fine-tuning of temperature readings.
- Cooling Output Protection Delay: Protects refrigeration equipment from frequent starts.
- Alarma de fallada del sensor: Provides audible and visual alerts in case of sensor malfunction.
- Parameter Memory: Retains set parameters even after power loss.
- Construcció robusta: Made with flame-retardant ABS plastic casing (up to V0 level) and passed EMC anti-interference tests. Complies with CE certification and RoHS standards.
- IoT Ready: Features an RS-485 communication interface for future remote control via an Elitech IoT module.

Stable and Reliable: Flame-retardant ABS casing, EMC tested, CE/RoHS compliant.

Alarm and Parameter Settings: Audible/visual alarms, customizable parameters, power-off memory.
3. Especificacions
| Paràmetre | Valor |
|---|---|
| Font d'alimentació | 110VAC ± 10%, 50/60Hz |
| Interval de mesura | -55 °F ~ 248 °F / -50 °C ~ 120 °C |
| Resolució de temperatura | 0.1 °C |
| Precisió de la temperatura | ±1°C (-20°C ~ 50°C) / ±2°F, ±1.5°C / ±3°F (others) |
| Consum total d'energia | <3W |
| Temperatura ambient de funcionament | 0 °C ~ 60 °C |
| Temperatura d'emmagatzematge | -30 °C ~ 75 °C |
| Humitat relativa | 20% ~ 85% HR (sense condensació) |
| Relay Contact Output Rating | Cooling/Heating: 10A/250VAC |
| Tipus de sensor | NTC (10K Ω/25°C, B value = 3435K) |
| Grau impermeable | IP6 (panel frontal) |
| Mida del panell | 80 mm x 35 mm |
| Mida de muntatge | 71 mm x 29 mm |
| Longitud del cable del sensor | 2M (probe length included) |

Figure 2: Comparison of STC-1000 series models, highlighting STC-1000HX features.
4. Instal·lació i cablejat
4.1 Muntatge
The STC-1000HX is designed for panel mounting. Ensure the mounting hole dimensions are 71mm x 29mm. Secure the controller firmly into the panel cutout.
4.2 Esquema de cablejat
Refer to the wiring diagram below for proper electrical connections. Incorrect wiring can damage the device or pose safety risks. If you are not comfortable with electrical wiring, please consult a qualified electrician.

Figure 3: Wiring Diagram for STC-1000HX. Connect power supply (110VAC), sensor, heating device, and cooling device to the corresponding terminals (1-8).
Instruccions de cablejat:
- Terminals 1 i 2: Power supply (110VAC). Connect Live (L) to terminal 1 and Neutral (N) to terminal 2.
- Terminals 3 i 4: Temperature Sensor. Connect the NTC sensor to these terminals.
- Terminals 5 i 6: Heating Output. Connect your heating device to these terminals.
- Terminals 7 i 8: Cooling Output. Connect your cooling device to these terminals.
Assegureu-vos que totes les connexions estiguin segures i aïllades.
5. Funcionament
5.1 Encès/Apagat
Manteniu premut el botó Botó d'encesa (
) for 3 seconds to turn the device on or off.
5.2 Configuració de la temperatura
To set the desired temperature (setpoint):
- Premeu el botó botó SET (often represented by a gear or wrench icon, or a dedicated 'SET' button).
- Utilitza el Up (
) i Avall (
) buttons to adjust the temperature value. - Premeu el botó botó SET de nou per confirmar i sortir.
5.3 Canvi d'unitats de temperatura (°C/°F)
The controller supports switching between Celsius and Fahrenheit. The exact method may vary, but typically involves a long press of a specific button combination or accessing a menu setting. Refer to the on-screen indicators for the current unit.
5.4 Configuració avançada dels paràmetres
The STC-1000HX allows configuration of various parameters suchs as:
- Differential (Hysteresis): The temperature difference between the setpoint and when the cooling/heating action is triggered.
- Calibració de temperatura: Adjusts the displayed temperature to match a reference thermometer.
- Cooling Delay Protection: Sets a delay before the cooling output activates to protect the compressor.
Accessing these parameters usually involves a specific key combination (e.g., holding SET and UP/DOWN buttons simultaneously) to enter a menu. Follow the on-screen prompts to navigate and adjust values.
6. Manteniment
To ensure optimal performance and longevity of your Elitech STC-1000HX temperature controller, follow these maintenance guidelines:
- Neteja: Wipe the controller's front panel with a soft, damp drap. No utilitzeu productes de neteja abrasius ni dissolvents, ja que poden danyar la pantalla o laasing. Ensure no liquid enters the device.
- Cura del sensor: Keep the temperature sensor clean and free from debris. Avoid bending or kinking the sensor cable excessively. Ensure the sensor is placed in an appropriate location for accurate temperature measurement, away from direct heat sources or drafts unless intended.
- Condicions ambientals: Operate the controller within the specified ambient temperature and humidity ranges (0°C ~ 60°C, 20% ~ 85% RH non-condensing) to prevent damage.
- Comprovacions periòdiques: Reviseu periòdicament totes les connexions del cablejat per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
7. Solució De Problemes
This section provides solutions to common issues you might encounter with your STC-1000HX.
| Problema | Causa possible | Solució |
|---|---|---|
| "EE" or "HHH" displayed | Sensor failure or temperature exceeds measurement range. | Check sensor connection. Replace sensor if damaged. Ensure temperature is within -55°F ~ 248°F / -50°C ~ 120°C. |
| El controlador no s'encén | No hi ha alimentació o cablejat incorrecte. | Verify power supply (110VAC) is connected correctly to terminals 1 & 2. Check fuses or circuit breakers. |
| Cooling/Heating not activating | Incorrect setpoint/differential, cooling delay active, or faulty relay/device. | Check setpoint and differential settings. Wait for cooling delay to expire. Test connected cooling/heating device independently. Verify wiring to terminals 5-8. |
| Lectura de temperatura inexacta | Sensor placement, sensor fault, or calibration needed. | Relocate sensor to a representative area. Perform temperature calibration. Replace sensor if faulty. |
If the problem persists after attempting these solutions, please contact Elitech customer support or your retailer for further assistance.
8. Garantia i Suport
The Elitech STC-1000HX temperature controller comes with a standard manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Elitech weblloc web per obtenir informació detallada sobre els termes i condicions de la garantia.
For technical support, troubleshooting assistance, or warranty claims, please contact Elitech customer service. You may also reach out to your point of purchase for retailer-specific support.
Informació de contacte: (Please refer to the product packaging or Elitech's official website for the most current contact details.)
Return and Refund Policy: For information regarding returns and refunds, please consult the seller's policy or the platform's (e.g., AliExpress) buyer protection guidelines.
9. Escenaris d'aplicació
The Elitech STC-1000HX is suitable for a wide range of temperature control applications, including but not limited to:

Figura 4: Example applications: Aquaculture, Seafood storage, Hatchery, Greenhouse cultivation, Winemaking, Aquarium.
- Aquariums and Terrariums
- Seafood Storage
- Hatcheries
- Greenhouse Cultivation
- Winemaking
- Refrigeration and Heating Cabinets
- Equipament industrial





