1. Introduction
The SINOTIMER MC101 is a versatile digital PID temperature controller designed for precise temperature regulation in a wide range of industrial and commercial applications. This controller is suitable for both heating and cooling control, making it ideal for equipment such as kilns, furnaces, ovens, and incubators. It features a clear four-digit LED display, universal input for various sensor types, and an auto-tune function for optimal performance.
This manual provides essential information for the safe and effective installation, operation, and maintenance of your MC101 temperature controller.
2. Features
- High Accuracy Display: Four-digit LED digital display with a measurement accuracy of 0.3%.
- High Resolution: Maximum resolution of 0.1 degree for thermocouple and thermal resistance inputs, and 0.001 for analog inputs.
- Universal Input: Supports 10 different types of thermocouples (e.g., K, J, E, T, R, S, B, N, WRe5-26) and RTD (Pt100, Cu50) inputs, selectable via panel settings.
- Flexible Control: Capable of both heating and cooling control.
- Auto-Tune Function: Automatically determines the best PID parameters for stable and precise temperature control.
- Temperature Unit Selection: Displays temperature in Celsius (°C) or Fahrenheit (°F).
- Wide Display Range: Four-digit LED display can show values up to "9999".
- Output Options: Features Relay contact output and Solid-State Relay (SSR) voltage output (supports one group output).
- Compact Design: Short shell for easy integration.
3. Package Contents
Please check the package for the following items:
- 1x SINOTIMER MC101 Digital Display PID Temperature Controller
- 1x English User Manual (this document or a printed version)
4. Specifications
| Parameter | Specification |
|---|---|
| Model | MC101-611 |
| Measurement Accuracy | 0.3% |
| Resolution (Thermocouple/RTD) | 0.1 °C/°F |
| Resolution (Analog Input) | 0.001 |
| Input Type | Universal (10 types of Thermocouples, RTD) |
| Temperature Range | 0-1300°C (K-type thermocouple, range depends on sensor) |
| Temperature Unit | Celsius (°C) / Fahrenheit (°F) |
| Output Type | Relay Contact + SSR Voltage Output (one group) |
| Alarm Output | ALM1 |
| Power Supply | 85-265V AC, 50/60Hz |
| Material | ABS + Electronic Components |
| Dimensions (L x W x H) | Approx. 5.0 cm x 5.0 cm x 10.0 cm |
5. Setup and Installation
Important: Ensure the power supply is disconnected before performing any wiring or installation to prevent electric shock.
5.1. Physical Installation
The MC101 controller features a short shell design for panel mounting. Ensure adequate space for ventilation and access to wiring terminals.
5.2. Wiring Diagram
Refer to the diagram below for correct wiring connections. The terminals are located on the side/rear of the unit.
| Terminal No. | Function | Description |
|---|---|---|
| 1, 2 | Power Supply | Connect to 100-240VAC, 50/60Hz power source. |
| 3 (NO), 4 (Relay), 5 (NC) | Relay Output (OUT) | Normally Open (NO), Common (Relay), Normally Closed (NC) contacts for control output. |
| 11 (+), 12 (-) | SSR Output | Solid-State Relay voltage output. Connect to external SSR. |
| 6, 7 | Alarm Output (ALM) | Alarm contacts. |
| 8 (A), 9 (B), 10 (B) | RTD Input | For 3-wire Resistance Temperature Detector (e.g., Pt100). |
| 9 (A), 10 (B) | Thermocouple Input (TC) | For 2-wire Thermocouple (e.g., K-type). Ensure correct polarity. |
Note: The specific sensor type (Thermocouple or RTD) and its parameters must be configured in the controller's settings menu after wiring.
6. Operating Instructions
The MC101 features a dual LED display: the upper (red) display shows the Process Value (PV), which is the current measured temperature, and the lower (green) display shows the Set Value (SV), which is the desired temperature.
6.1. Basic Operation
- Power On: After correct wiring, apply power to the controller. The display will light up, showing the current temperature (PV) and the set temperature (SV).
- Setting Temperature (SV):
- In normal operating mode, use the Up (▲) and Down (▼) arrow buttons to adjust the Set Value (SV).
- The SV will flash as you adjust it. Once the desired temperature is set, the controller will automatically save it after a few seconds of inactivity, or you can press the SET button to confirm and enter the parameter menu.
- Parameter Settings: Press and hold the SET button for a few seconds to enter the parameter setting menu. Use the Up (▲) and Down (▼) buttons to navigate through parameters and adjust values. Press SET briefly to confirm a setting and move to the next parameter. Press R/S to exit the menu without saving changes or to shift digits during value entry.
6.2. PID Auto-Tune Function
The auto-tune function helps the controller automatically find the optimal PID parameters (Proportional, Integral, Derivative) for your specific heating/cooling system, ensuring stable and accurate temperature control. Consult the full user manual for detailed instructions on how to initiate and complete the auto-tune process, which typically involves setting a target temperature and activating the function.
6.3. Temperature Unit Selection
The MC101 allows you to select between Celsius (°C) and Fahrenheit (°F) display modes. This setting is usually found within the controller's parameter menu. Refer to the detailed parameter list in the comprehensive manual for the specific parameter code and adjustment procedure.
7. Maintenance
To ensure the longevity and accurate performance of your SINOTIMER MC101 temperature controller, follow these maintenance guidelines:
- Cleaning: Regularly wipe the display and casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the plastic or electronic components.
- Environment: Operate the controller within its specified environmental conditions (temperature, humidity). Avoid exposure to excessive dust, moisture, corrosive gases, or strong vibrations.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to inaccurate readings or intermittent operation.
- Calibration: If you suspect inaccurate temperature readings, consider checking the sensor and, if necessary, recalibrating the controller according to the detailed instructions in the full manual.
8. Troubleshooting
If you encounter issues with your MC101 controller, try the following basic troubleshooting steps:
- No Power/Display: Check the power supply connections (Terminals 1 & 2) and ensure the power source is active.
- Inaccurate Temperature Reading (PV):
- Verify the sensor wiring (Terminals 8, 9, 10 for RTD; 9, 10 for TC) is correct and secure.
- Ensure the correct sensor type (thermocouple type or RTD type) is selected in the controller's parameter settings.
- Check the sensor itself for damage or proper placement in the process.
- No Output Control:
- Confirm that the Set Value (SV) is correctly configured relative to the Process Value (PV) and the desired control action (heating/cooling).
- Check the wiring for the relay output (Terminals 3, 4, 5) or SSR output (Terminals 11, 12).
- Ensure the output mode (e.g., PID, ON/OFF) is correctly set in the parameters.
- Controller Not Responding: Try cycling the power off and on. If the issue persists, consult the detailed troubleshooting section in the full user manual for error codes and advanced diagnostics.
9. User Tips
- Sensor Selection: Always ensure you select the correct sensor type (e.g., K-type thermocouple, Pt100 RTD) in the controller's settings to match your physical sensor. Incorrect selection will lead to highly inaccurate readings.
- Initial Auto-Tune: For best performance, especially after initial setup or significant changes to your heating/cooling system, run the auto-tune function to optimize PID parameters.
- Environmental Considerations: Protect the controller from direct heat, excessive humidity, and strong electromagnetic interference to maintain stable operation.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your original seller or the manufacturer directly. Keep your purchase receipt or order details handy when seeking support.
