1. Prodotto finitoview
The SINOTIMER MC401-611 is a smart LCD display thermostat designed for precise temperature control in various applications. It features a universal input, allowing users to select their desired input signal, and supports both Fahrenheit and Celsius temperature units. The device provides one set of control output, configurable as either relay or SSR (Solid State Relay) integral output. It utilizes a high-quality anti-interference chip for stable performance and offers a clear, concise LCD digital display with a minimum resolution of 0.1°C/0.1°F.
Caratteristiche principali:
- Universal input, user can change desired input signal.
- Fahrenheit/Celsius switchable according to user needs.
- One set of control output (relay/SSR integral).
- Thermometer signal input with digital display and decimal point.
- High-quality anti-interference chip for reliable operation.
- Concise and clear LCD display.

Figura 1: Fronte view of the MC401-611 Thermostat, displaying Process Value (PV) and Set Value (SV) with control buttons below.
2. Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Numero di modello | MC401-611 |
| Ingresso | K (default setting) |
| Produzione | Relè/SSR |
| Classe di precisione | 0.5 |
| Allarme | ALM 1 |
| Unità di temperatura | Fahrenheit/Celsius switchable |
| Alimentazione elettrica | 100-240 V CA 50/60 Hz |
| Intervallo di temperatura di esercizio | 0-1300℃ |
| Dimensioni del prodotto (L x P x A) | 4.80 x 9.60 x 10.00 cm (1.89 x 3.78 x 3.94 pollici) |
| Peso dell'articolo | 0.237 kg (6.9 once) |

Figure 2: Product dimensions of the MC401-611 Thermostat.
3. Configurazione e installazione
3.1 Contenuto della confezione:
- 1 x MC401-611 Temperature Controller
- 2 x Accessori di montaggio
- 1 x Manuale utente in inglese (questo documento)

Figure 3: Package contents of the MC401-611 Temperature Controller.
3.2 Istruzioni di montaggio:
The MC401-611 is designed for panel mounting. Use the provided mounting accessories to secure the device. Ensure adequate ventilation around the unit.
- Cut a rectangular opening in your panel according to the product dimensions (refer to Figure 2).
- Insert the MC401-611 into the opening from the front.
- Attach the two mounting accessories to the sides of the controller from the rear, tightening the screws to secure the unit firmly in place.

Figura 4: Posteriore view of the MC401-611 showing wiring terminals.

Figura 5: Parte posteriore angolata view showing terminal connections and mounting points.
3.3 Schema elettrico:
Importante: All wiring should be performed by a qualified electrician and with power disconnected to prevent electric shock. Refer to the diagram on the side of the unit for specific terminal assignments.
The unit supports K-type thermocouple input and offers relay/SSR output. Connect the power supply (100-240V AC 50/60Hz) to the designated terminals. Connect your heating element or control device to the output terminals.

Figure 6: Side label with wiring and specification details.
4. Istruzioni per l'uso
4.1 Fine displayview:
The LCD display shows two main values:
- PV (valore di processo): La temperatura attualmente misurata.
- SV (valore impostato): The desired target temperature.

Figure 7: Close-up of the LCD display showing PV and SV.
4.2 Funzioni dei pulsanti:
- IMPOSTATO button: Enters parameter setting mode or confirms a setting.
- R/S (Return/Shift) button: Used to shift digits during setting or return to the main display.
- ▲ (Up) button: Increases the value of a parameter or setpoint.
- ▼ (Down) button: Decreases the value of a parameter or setpoint.
4.3 Impostazione della temperatura:
- Premere il tasto IMPOSTATO una volta il pulsante. Il display SV inizierà a lampeggiare.
- Utilizzare il ▲ E ▼ buttons to adjust the desired temperature (SV).
- Utilizzare il R/S button to move the cursor between digits if needed.
- Premere IMPOSTATO again to confirm the new set value. The display will stop flashing.
4.4 Changing Temperature Unit (Celsius/Fahrenheit):
The unit allows switching between Celsius (℃) and Fahrenheit (℉). Refer to the detailed user manual (101 series manual) included in the package for specific steps on accessing and changing this parameter, as it typically involves entering a deeper parameter menu.
5. Manutenzione
The MC401-611 Smart LCD Display Thermostat is designed for long-term reliable operation with minimal maintenance.
- Pulizia: Pulisci delicatamente il display e casing with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the plastic or screen.
- Ventilazione: Ensure that the ventilation slots on the sides and rear of the unit are not obstructed to prevent overheating.
- Connessioni: Periodically check wiring connections to ensure they are secure and free from corrosion. Disconnect power before checking connections.
6. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il display è vuoto. | Nessuna alimentazione elettrica. | Check power connections (100-240V AC). Ensure power source is active. |
| PV reading is incorrect or "HHHH" / "LLLL". | Thermocouple not connected, faulty, or incorrect type. | Ensure K-type thermocouple is correctly wired to the input terminals. Check for breaks in the thermocouple wire. |
| Output (heating) not activating. | SV is set too low, wiring issue, or internal fault. | Verify SV is above PV. Check output wiring to the heating element. Consult a qualified technician if issues persist. |
| Unit not responding to button presses. | Problema temporaneo del software. | Disconnect power for 10 seconds, then reconnect. If problem persists, contact support. |
7. Garanzia e supporto
This SINOTIMER MC401-611 Smart LCD Display Thermostat comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package or contact SINOTIMER customer support for details regarding warranty terms and conditions.
For technical support, troubleshooting assistance beyond this manual, or warranty claims, please contact SINOTIMER customer service through their official websito o le informazioni di contatto fornite con l'acquisto.
You can visit the official SINOTIMER store on Amazon for more information: SINOTIMER Store





