Gabatarwa
This manual provides essential information for the proper installation, operation, and maintenance of the Selec TC303A Digital Temperature Controller. Please read this manual thoroughly before using the device to ensure safe and efficient operation.
The Selec TC303A is a high-performance digital temperature controller featuring a single 3-digit, 7-segment LED display. It supports various thermocouple (TC) and RTD inputs, offering both PID and ON/OFF control modes. Key features include a relay ON status indicator, three front panel control buttons for easy operation, and selectable Celsius/Fahrenheit temperature units.
Samfurin Ƙarsheview

Hoto: Gaba view of the Selec TC303A Digital Temperature Controller. The device features a black casing with an orange bezel. The front panel displays "Selec" and "TC303" in white text, with a red 3-digit LED display showing "303". Below the display are three orange control buttons: a square button on the left and two triangular buttons on the right.
The Selec TC303A is designed for precise temperature regulation in various industrial and scientific applications. Its compact design and user-friendly interface make it suitable for a wide range of control tasks.
Saita da Shigarwa
Proper installation is crucial for the optimal performance and longevity of the TC303A controller. Ensure all power is disconnected before proceeding with installation.
Yin hawa
The controller is designed for panel mounting. Ensure adequate space for ventilation and access to wiring terminals. The protection level is IP66 for the front panel, indicating protection against dust and powerful water jets.
Waya
Connect the power supply, sensor input, and control output according to the wiring diagram provided with the product packaging. The supply voltage range is 85 to 270V AC/DC (50/60Hz).
- Tushen wutan lantarki: Connect to the specified AC/DC voltage tushen.
- Shigar da Sensor: Connect your chosen TC (J, K, T, R, S type) or RTD (Pt100) sensor to the designated terminals. Ensure correct polarity for thermocouples.
- Abubuwan sarrafawa: Connect the relay or SSR drive output to your heating/cooling element or other controlled device.
Refer to the detailed wiring diagram included with your product for specific terminal assignments.
Umarnin Aiki
The TC303A features a single display and three front panel buttons for configuration and operation.
Kunna wuta
Once wired correctly, apply power. The display will illuminate, showing the current process value (PV).
Setting the Setpoint
- Danna maɓallin SET button (typically the square button) to enter setpoint adjustment mode.
- Yi amfani da UP kuma KASA buttons (triangular buttons) to adjust the desired temperature setpoint.
- Danna maɓallin SET button again to confirm and save the setpoint.
Control Modes (PID / ON/OFF)
The controller supports both PID and ON/OFF control. The specific method for selecting or configuring these modes will be detailed in the full product manual. Generally, this involves accessing a parameter menu using a combination of button presses.
Temperature Unit Selection (C / F)
The unit of temperature (Celsius or Fahrenheit) can be selected. This setting is typically found within the configuration menu. Refer to the full manual for instructions on how to access and change this parameter.
Kulawa
The Selec TC303A is designed for reliable operation with minimal maintenance. Regular checks can help ensure continued performance.
- Tsaftacewa: Keep the front panel clean using a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Haɗin kai: A riƙa duba duk hanyoyin haɗin waya lokaci-lokaci don ganin ko suna da ƙarfi da kuma alamun tsatsa.
- Muhalli: Ensure the operating environment remains within the specified temperature and humidity ranges (0°C to 50°C, 95% RH non-condensing).
Shirya matsala
This section addresses common issues you might encounter with the TC303A controller.
- Babu Nuni:
- Duba hanyoyin samar da wutar lantarki.
- Tabbatar da wadata voltage is within the 85-270V AC/DC range.
- Karatun Zazzabi mara daidai:
- Ensure the sensor type configured in the controller matches the connected sensor (TC or RTD).
- Check sensor wiring for correct polarity and secure connections.
- Inspect the sensor for damage.
- Control Output Not Activating:
- Verify the setpoint is correctly configured.
- Check the control mode (PID/ON/OFF) and its parameters.
- Ensure the relay/SSR drive output is correctly wired to the controlled device.
- Check the LED status indicator for relay ON status.
For more complex issues, consult the comprehensive product manual or contact technical support.
Ƙayyadaddun bayanai
| Siga | Daraja |
|---|---|
| Samfura | Saukewa: TC303A |
| Nunawa | Single 3-digit, 7-segment LED |
| Nau'in sarrafawa | PID, ON/OFF Control |
| Nau'in shigarwa | TC (J, K, T, R, S), RTD (Pt100) |
| Sarrafa fitarwa | Relay or SSR Drive |
| Ƙara Voltage | 85 to 270V AC/DC (50/60Hz) |
| SampLokaci | 250 ms |
| Yanayin Aiki | 0°C zuwa 50°C (32°F zuwa 122°F) |
| Ajiya Zazzabi | -20°C zuwa 75°C (-4°F zuwa 167°F) |
| Danshi | 95% RH (ba mai ɗaukar nauyi) |
| Matsayin Kariya | IP66 (Gabatarwar Gaba) |
| Pt100 Range | -150°C to 850°C, Accuracy: 0.1% of F.S. ±1°C, Resolution: 1°C |
| J Type Range | -199°C to 750°C, Accuracy: 0.25% of F.S. ±1°C, Resolution: 1°C |
| K Type Range | -199°C to 999°C, Accuracy: 0.25% of F.S. ±1°C, Resolution: 1°C |
| T Type Range | -199°C to 400°C, Accuracy: 0.25% of F.S. ±1°C, Resolution: 1°C |
| R & S Type Range | 0°C to 999°C, Accuracy: 0.5% of F.S. ±2°C, Resolution: 1°C |
Garanti da Taimako
For warranty information and technical support, please refer to the documentation included with your purchase or contact Ace Instruments, the manufacturer, directly. Keep your purchase receipt for warranty claims.





