1. Introduction
The SINOTIMER MT-S is a versatile digital PID temperature controller designed for precise temperature management in both heating and cooling applications. It features a dual-line, three-digit display for process value (PV) and set value (SV), and supports multiple thermocouple input types. This manual provides essential information for the safe and effective operation of your MT-S temperature controller.
2. Safety Information
- Always disconnect power before installation or maintenance.
- Ensure proper wiring according to the provided diagrams to prevent damage or electric shock.
- This device should be installed by qualified personnel.
- Do not operate the device in environments exceeding the specified ambient temperature and humidity ranges, or where corrosive gases are present.
- Verify that the power supply voltage matches the device's requirements (AC100-240V 50/60Hz).
3. Package Contents
- 1 x SINOTIMER Digital PID Temperature Controller (MT-S)
- 1 x English User Manual
4. Product Overview
The SINOTIMER MT-S features a compact design with a clear digital display and intuitive control buttons. It is designed for panel mounting.
4.1 Front Panel Layout
The front panel includes a dual digital display and several control buttons:
- PV (Process Value): Displays the measured temperature or various parameter symbols.
- SV (Set Value): Displays the target temperature or various parameter set values.
- OUT (Output Indicator): Illuminates when the control output is active.
- AT (Auto-Tune Indicator): Illuminates when PID auto-tuning is in progress.
- AL1 (Alarm Indicator): Illuminates when an alarm condition is met.
- ▲ (Up Arrow): Increases numerical values.
- ▼ (Down Arrow): Decreases numerical values.
- ◀ (Shift Key): Moves the cursor or shifts digits during parameter setting.
- MODE: Used for calling up parameters and registering set values.
4.2 Available Models and Dimensions
The MT-S model has the following dimensions:
- Panel Size: 48 x 48 mm
- Installation Hole Size: 45 x 45 mm
5. Specifications
| Feature | Specification |
|---|---|
| Power Supply | AC100-240V 50/60Hz |
| Temperature Setting Range | -50 ~ +999 ℃ / °F |
| Input Thermocouple Types | K, J, E, N (user selectable) |
| Control Application | Heating or Cooling |
| Display | Two lines, Three digits (Celsius ℃ / Fahrenheit °F selectable) |
| Display Resolution | 1°C / 1°F |
| Control Precision | ± 0.5%FS |
| Control Mode | PID, ON/OFF (ON/OFF control when P=0) |
| Control Output | One group control output, supporting 2 methods:
|
| Alarm | One alarm, 6 kinds of alarm modes: high deviation / low deviation / process value alarm |
| Power Consumption | ≤ 10VA |
| Ambient Temperature | 0-50°C |
| Ambient Humidity | 30-85% RH (non-condensing, no corrosive gas) |
| Material | Plastic |
6. Setup and Installation
6.1 Panel Mounting
The MT-S controller is designed for panel mounting. Ensure the installation hole size is 45 x 45 mm for a secure fit.
6.2 Wiring Diagram and Connections
The controller supports two main output methods and accepts various thermocouple inputs. Refer to the diagram below for proper wiring.
Output Methods:
- Relay Output:
- Directly connected to the heat pipe.
- Connected to an AC contactor.
- Specifications: RELAY relay output 5A/220V (for contactor or heat pipe).
- Solid State Output (SSR):
- Connected to a Solid State Relay (SSR).
- Specifications: SSR solid state output connected to DC12V (for DC controlled AC solid state relay).
Input Methods:
- The controller accepts thermocouple inputs with index numbers K, J, E, and N. Ensure the correct thermocouple type is selected in the controller's settings to match your sensor.
Important: Always ensure power is disconnected before making any wiring connections. Incorrect wiring can damage the device or cause safety hazards.
7. Operating Instructions
7.1 Power On
Once properly wired and installed, apply power to the controller. The display will show the current Process Value (PV) and Set Value (SV).
7.2 Setting the Temperature (SV)
- Press the MODE button briefly to enter the set value adjustment mode. The SV display will flash.
- Use the ▲ and ▼ buttons to adjust the desired temperature.
- Use the ◀ (Shift) button to move between digits for faster adjustment.
- Press the MODE button again to confirm the new set value and exit the adjustment mode.
7.3 Parameter Settings
The controller has various parameters for advanced configuration, including control mode (PID/ON-OFF), alarm settings, and thermocouple type. Accessing and adjusting these parameters typically involves pressing and holding the MODE button for several seconds to enter the parameter menu. Refer to the detailed parameter list in the full manual for specific instructions on each setting.
- Control Mode: Select between PID control for precise regulation or ON/OFF control (when P=0) for simple switching.
- Alarm Settings: Configure the single alarm with 6 modes (high deviation, low deviation, process value alarm).
- Thermocouple Type: Ensure this matches your connected sensor (K, J, E, N).
- Temperature Unit: Switch between Celsius (℃) and Fahrenheit (°F) as needed.
7.4 PID Auto-Tuning (AT)
For optimal performance with PID control, auto-tuning is recommended. This process automatically calculates the best PID parameters for your specific system. Consult the full manual for detailed steps on initiating and completing the auto-tuning process. The AT indicator lamp will illuminate during auto-tuning.
8. Maintenance
- Cleaning: Wipe the controller's surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check wiring connections for looseness or damage.
- Environment: Ensure the operating environment remains within specified temperature and humidity limits and free from corrosive gases.
Caution: Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller does not power on. | No power supply; incorrect wiring. | Check power connections and ensure correct voltage (AC100-240V). Verify wiring against the diagram. |
| Incorrect temperature reading (PV). | Thermocouple not connected; incorrect thermocouple type selected; damaged thermocouple. | Ensure thermocouple is securely connected. Verify the selected thermocouple type in settings matches the sensor. Replace damaged thermocouple. |
| Output (OUT) not activating. | Set value (SV) not reached; control mode incorrect; wiring issue. | Check SV and PV values. Ensure control mode (heating/cooling) is appropriate. Verify output wiring. |
| Temperature fluctuates widely in PID mode. | PID parameters not optimized. | Perform PID auto-tuning to optimize control parameters for your system. |
10. User Tips
- For detailed parameter settings and advanced functions, always refer to the comprehensive English manual included with your product. This will provide specific steps for configuring each parameter.
- When switching between Celsius and Fahrenheit, ensure all relevant set points and alarm limits are re-checked and adjusted if necessary.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your point of purchase or the manufacturer directly. Keep your purchase receipt as proof of purchase.