1. Producte acabatview
The SINOTIMER MC701 is a versatile digital PID temperature controller designed for precise heating and cooling applications. It features an LCD display, supports various input types including PT100 and K-type thermocouples, and provides SSR/Relay output with alarm functions. This manual provides essential information for the safe and effective operation of your MC701 controller.

Figura 1.1: Frontal view of the MC701 controller showing the PV and SV displays, and control buttons.

Figura 1.2: Angle view of the MC701 controller, highlighting the model number (MC701-611) and default input type (K).
2. Característiques clau
- High-precision digital PID temperature control.
- Dual LCD display for Process Value (PV) and Set Value (SV).
- Supports multiple input types: K-type thermocouple, PT100 RTD.
- SSR (Solid State Relay) and Relay output options.
- Configurable heating and cooling control modes.
- Integrated alarm functions (ALM1, ALM2).
- Temperature unit selection: Celsius (°C) or Fahrenheit (°F).
3. Informació de seguretat
Si us plau, llegiu i comprengui totes les instruccions de seguretat abans de la instal·lació i el funcionament. Si no segueix aquestes instruccions, es poden produir descàrregues elèctriques, incendis o lesions greus.
- Assegureu-vos que la font d'alimentació voltage matches the controller's specifications (100-240V AC).
- Tot el cablejat ha de ser realitzat per un electricista qualificat.
- Disconnect power before making any wiring connections or performing maintenance.
- Do not operate the controller in environments with excessive moisture, dust, or corrosive gases.
- Assegureu-vos una ventilació adequada per evitar el sobreescalfament.
- This device is not intended for life-support systems or applications where malfunction could lead to severe injury or property damage.
4. Configuració i instal·lació
Proper installation is crucial for the accurate and reliable operation of the MC701 controller.
4.1 Muntatge
The MC701 is designed for panel mounting. Ensure adequate space for ventilation and wiring connections.

Figure 4.1: MC701 controller shown with its included mounting clips for panel installation.
4.2 Connexions de cablejat
Refer to the wiring diagram on the side of the unit and the instructions below for correct connections. Use appropriate gauge wires for all connections.

Figure 4.2: Detailed wiring diagram on the side of the MC701 unit, showing connections for power, sensor input, SSR, and relay outputs.
- Power Supply (85-265VAC): Connect to terminals 8 and 9.
- SSR Output (OUT): Connect to terminals 10 (+) and 11 (-).
- Relay Output (RELAY): Connect to terminals 13 (NO - Normally Open) and 14 (NC - Normally Closed). Terminal 12 is the common (COM).
- RTD Input (PT100): Connect to terminals 4 (A), 5 (B), and 6 (B).
- Thermocouple Input (TC): Connect to terminals 5 (+) and 6 (-).
- Alarm Outputs (AL1, AL2): Connect to terminals 1, 2, and 3.
5. Instruccions de funcionament
5.1 Mostra finalview
The MC701 features a dual display:
- PV (Process Value): Displays the current measured temperature.
- SV (Set Value): Displays the desired target temperature.
Llums indicadores:
- OUT: Indicates output status (heating/cooling).
- AT: Auto-tuning indicator.
- ALM1, ALM2: Alarm indicators.
5.2 Funcions dels botons
- SET: Enters parameter setting mode or confirms a setting.
- < (R/S): Shifts cursor during setting, or resets alarm.
- V (Down Arrow): Decreases value during setting.
- ^ (Up Arrow): Increases value during setting.
5.3 Configuració de la temperatura objectiu (SV)
- Premeu el botó SET el botó una vegada. La pantalla SV començarà a parpellejar.
- Utilitza el ^ i V botons per ajustar la temperatura desitjada.
- Utilitza el < botó per moure el cursor i aconseguir un ajust més ràpid.
- Premeu SET again to confirm the new SV and exit the setting mode.
5.4 Configuració avançada dels paràmetres
To access advanced parameters (e.g., PID parameters, alarm settings, input type, temperature unit), press and hold the SET button for several seconds until the first parameter code appears on the PV display.
- Ús ^ i V to navigate through parameters.
- Premeu SET a view or edit a parameter's value.
- Ajusteu el valor utilitzant ^, V, i <.
- Premeu SET to save the value and return to the parameter list.
- To exit advanced settings, press and hold SET again, or wait for a timeout.
6. Manteniment
Regular maintenance ensures the longevity and optimal performance of your MC701 controller.
- Cleaning: Wipe the display and casinNetegeu amb un drap suau i sec. No utilitzeu productes de neteja abrasius ni dissolvents.
- Ventilation: Ensure the ventilation slots on the sides of the unit are not obstructed to prevent overheating.
- Connections: Periodically check all wiring connections for tightness and signs of wear or corrosion.
- Storage: If storing the unit, keep it in a dry, dust-free environment within its specified operating temperature range.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Display shows "HHHH" or "LLLL" | Sensor open circuit or short circuit; temperature exceeds range. | Check sensor wiring and connection. Verify sensor type matches setting. Ensure temperature is within range. |
| Controller not heating/cooling | Output wiring incorrect; SV not set correctly; PID parameters need tuning. | Check output wiring (SSR/Relay). Confirm SV is set to desired temperature. Perform auto-tuning if necessary. |
| La temperatura fluctua àmpliament | PID parameters not optimized; sensor placement. | Perform auto-tuning. Ensure sensor is placed correctly and securely. |
| No display/Power issue | Sense subministrament elèctric; cablejat incorrecte. | Check power connections (terminals 8 & 9). Verify power source is active. |
8. Especificacions

Figura 8.1: lateral view of the MC701 controller displaying its detailed specification label.
| Paràmetre | Valor |
|---|---|
| Model | MC701 |
| Marca | SINOTIMER |
| Tipus d'entrada | K-type Thermocouple (default), PT100 RTD |
| Interval de temperatura | 0-1300°C (K-type), configurable for other types |
| Tipus de sortida | Relé / SSR |
| Font d'alimentació | 100-240V AC, 50/60Hz |
| Tipus de visualització | LED (PV: Red, SV: Green) |
| Classe de precisió | 0.5 |
| Temperatura de funcionament | 0-50°C (approximate, typical for electronics) |
| País d'origen | Xina |
| UPC | 780744817811 |
9. Garantia i Suport
For technical support or warranty inquiries, please contact SINOTIMER customer service through the retailer or the official SINOTIMER website. Please have your product model number (MC701) and purchase details ready.
This product is manufactured by SINOTIMER.





