1. Pengenalan
Thank you for choosing the Freshmeo SF-202 PC202 Digital Temperature Controller. This device is designed for precise temperature management in cold-room environments, offering reliable performance and user-friendly operation. This manual provides detailed instructions for installation, operation, maintenance, and troubleshooting to ensure optimal use of your controller.
2. Maklumat Keselamatan
Please read all safety warnings and instructions carefully before installing or operating the controller. Failure to follow these instructions may result in electric shock, fire, or damage to the product.
- Keselamatan Elektrik: Ensure all wiring is performed by a qualified electrician and complies with local electrical codes. Disconnect power before making any connections or performing maintenance.
- Voltage Keserasian: Verify that the power supply (230VAC or 120VAC, 50/60Hz) matches the controller's requirements.
- Pembumian yang betul: Always ensure the device is properly grounded to prevent electrical hazards.
- Keadaan Persekitaran: Install the controller in an environment free from excessive moisture, dust, and corrosive gases. The unit is waterproof and hermetic, but proper installation is still crucial.
- Compressor Load: Do not exceed the maximum compressor load of 30A / 250VAC.
3. Produk Lebihview
3.1 Ciri-ciri Utama
- Waterproof and hermetic design.
- Direct control of 1HP compressor.
- Defrost function by turning off the compressor.
- High/low temperature overrun alarm.
- Compressor start delay function.
- Parameter locking for secure settings.
- Julat suhu: -45°C hingga 99°C.
- Accuracy: ±1°C.
- Sensor type: NTC, 1pc included.
3.2 Komponen Pengawal
The SF-202 PC202 controller typically consists of a main display unit, control buttons, and a temperature sensor (NTC probe).
Rajah 1: Depan view of the Freshmeo SF-202 PC202 Digital Temperature Controller, showing the digital display and control buttons.
4. Persediaan dan Pemasangan
4.1 Pemasangan
The controller is designed for panel mounting. Ensure the cutout dimensions are appropriate for the unit (142mm L × 38mm W × 35mm D). Secure the controller firmly in place using the provided clips or mounting hardware.
4.2 Gambarajah Pendawaian
(A detailed wiring diagram would typically be provided here. Please refer to the diagram included with your product packaging for specific connection points.)
Garis Panduan Pendawaian Umum:
- Connect the power supply to the designated terminals (230VAC or 120VAC).
- Connect the NTC temperature sensor to its dedicated input terminals. Ensure the sensor is placed in the area where temperature needs to be controlled.
- Connect the compressor load to the compressor output terminals. Ensure the load does not exceed 30A / 250VAC.
- Pastikan semua sambungan adalah ketat dan selamat untuk mengelakkan sentuhan longgar dan potensi bahaya.
5. Arahan Operasi
5.1 Operasi Asas
Once powered on, the controller will display the current temperature measured by the NTC sensor. The display will indicate when the compressor is active.
5.2 Tetapan Parameter
To access and modify parameters, refer to the specific button sequence outlined in your product's quick start guide. The following table details the available parameters and their functions:
| Parameter | Fungsi | Tetapkan Julat | Lalai |
|---|---|---|---|
| E1 | Had setpoint yang lebih rendah | -40°C to Set temp. | -30°C |
| E2 | Higher setpoint limit | Set temp. + 40°C | 30°C |
| E3 | Histeresis suhu | 1 hingga 10°C | 4°C |
| E4 | Compressor start delay time | 0 hingga 10 Min | 2 Min |
| E5 | Offset on room temperature | -5 hingga 5°C | 0 |
| F1 | Maks. Tempoh nyahbeku | 1 hingga 60 Min | 20 Min |
| F2 | Masa selang nyahbeku | 0 to 24 Hr | 6 Hr |
| F4 | Paparkan semasa nyahbeku | 0=Normal display, 1=Last value before defrost | 0 |
| C2 | Penggera suhu tinggi | 0 to 40°C above setpoint | 20 |
| C3 | Penggera suhu rendah | Below setpoint -40°C to 0 | -20 |
| C4 | Masa kelewatan penggera | 1 hingga 90 Min | 60 Min |
Parameter Locking: The controller features a parameter locking function to prevent accidental changes to settings. Refer to your product's specific instructions on how to enable and disable this feature.
6. Penyelenggaraan
Regular maintenance ensures the longevity and optimal performance of your temperature controller.
- Pembersihan: Periodically wipe the display and casing dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.
- Pemeriksaan Sensor: Regularly check the NTC sensor for any physical damage or corrosion. Ensure it is securely placed in the desired temperature monitoring location.
- Semakan Sambungan: Occasionally inspect all electrical connections to ensure they remain tight and free from corrosion.
- Kemas Kini Perisian: Semak pengeluar website for any available firmware updates, if applicable.
7. Penyelesaian masalah
If you encounter issues with your SF-202 PC202 controller, refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Pengawal tidak dihidupkan | Tiada bekalan kuasa; pendawaian yang salah; fius yang ditiup. | Check power connections; verify voltage; inspect fuses. |
| Bacaan suhu tidak tepat | Faulty sensor; sensor not properly placed; incorrect offset (E5). | Check sensor connection and placement; replace sensor if damaged; adjust E5 parameter. |
| Compressor not turning on/off as expected | Incorrect setpoint or hysteresis (E1, E2, E3); compressor delay (E4); wiring issue. | Verify setpoint and hysteresis settings; check E4 parameter; inspect compressor wiring. |
| Penggera sentiasa aktif | Temperature outside alarm limits (C2, C3); alarm delay (C4) too short. | Adjust C2/C3 parameters; increase C4 delay; check actual temperature. |
Jika masalah berterusan selepas mencuba penyelesaian ini, sila hubungi sokongan pelanggan.
8. Spesifikasi Teknikal
- model: SF-202 PC202
- Julat Suhu: -45°C hingga 99°C
- Ketepatan: ±1°C
- Penderia: NTC, 1pc
- Bekalan Kuasa: 230VAC or 120VAC, 50/60Hz
- Compressor Output: 30A / 250VAC (Max 1HP)
- Dimensi (L × W × D): 142mm × 38mm × 35mm
- Jenis Suis: Suis Suhu
- Bahan: plastik
- Bilangan Unit: 1.0 Kiraan
9. Waranti dan Sokongan
Freshmeo products are manufactured to high-quality standards. For warranty information, please refer to the warranty card included with your purchase or visit the official Freshmeo website. If you require technical assistance or have questions not covered in this manual, please contact Freshmeo customer support through the contact information provided on our webtapak atau platform pembelian anda.