1. Introduzione
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. Informazioni sulla sicurezza
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.
- Sicurezza elettrica: 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 Compatibilità: Verify that the power supply (230VAC or 120VAC, 50/60Hz) matches the controller's requirements.
- Messa a terra corretta: Always ensure the device is properly grounded to prevent electrical hazards.
- Condizioni ambientali: 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. Prodotto finitoview
3.1 Caratteristiche principali
- 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.
- Intervallo di temperatura: da -45°C a 99°C.
- Accuracy: ±1°C.
- Sensor type: NTC, 1pc included.
3.2 Componenti del controller
The SF-202 PC202 controller typically consists of a main display unit, control buttons, and a temperature sensor (NTC probe).
Figura 1: Davanti view of the Freshmeo SF-202 PC202 Digital Temperature Controller, showing the digital display and control buttons.
4. Configurazione e installazione
4.1 Montaggio
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 Schema elettrico
(A detailed wiring diagram would typically be provided here. Please refer to the diagram included with your product packaging for specific connection points.)
Linee guida generali per il cablaggio:
- 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.
- Assicurarsi che tutti i collegamenti siano ben saldi e sicuri per evitare contatti allentati e potenziali pericoli.
5. Istruzioni per l'uso
5.1 Funzionamento di base
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 Impostazioni dei parametri
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:
| Parametro | Funzione | Imposta intervallo | Predefinito |
|---|---|---|---|
| E1 | Limite inferiore del setpoint | -40°C to Set temp. | -30°C |
| E2 | Higher setpoint limit | Set temp. + 40°C | 30°C |
| E3 | Isteresi della temperatura | da 1 a 10°C | 4°C |
| E4 | Compressor start delay time | dalle 0 alle 10 min | 2 minuti |
| E5 | Offset on room temperature | -5 a 5°C | 0 |
| F1 | Massimo. Durata dello sbrinamento | dalle 1 alle 60 min | 20 minuti |
| F2 | Intervallo di sbrinamento | 0 to 24 Hr | 6 ore |
| F4 | Visualizzazione durante lo sbrinamento | 0=Normal display, 1=Last value before defrost | 0 |
| C2 | Allarme alta temperatura | 0 to 40°C above setpoint | 20 |
| C3 | Allarme bassa temperatura | Below setpoint -40°C to 0 | -20 |
| C4 | Tempo di ritardo dell'allarme | dalle 1 alle 90 min | 60 minuti |
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. Manutenzione
Regular maintenance ensures the longevity and optimal performance of your temperature controller.
- Pulizia: Pulire periodicamente il display e casing con un morbido, damp panno. Non usare detergenti abrasivi o solventi.
- Ispezione del sensore: Regularly check the NTC sensor for any physical damage or corrosion. Ensure it is securely placed in the desired temperature monitoring location.
- Verifica della connessione: Occasionally inspect all electrical connections to ensure they remain tight and free from corrosion.
- Aggiornamenti software: Controllare il produttore websito per eventuali aggiornamenti firmware disponibili, se applicabili.
7. Risoluzione Dei Problemi
If you encounter issues with your SF-202 PC202 controller, refer to the following common problems and solutions:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il controller non si accende | Nessuna alimentazione; cablaggio errato; fusibile bruciato. | Check power connections; verify voltage; inspect fuses. |
| Lettura della temperatura imprecisa | 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. |
| Allarme costantemente attivo | Temperature outside alarm limits (C2, C3); alarm delay (C4) too short. | Adjust C2/C3 parameters; increase C4 delay; check actual temperature. |
Se il problema persiste dopo aver provato queste soluzioni, contattare l'assistenza clienti.
8. Specifiche tecniche
- Modello: SF-202 PC202
- Intervallo di temperatura: -45°C a 99°C
- Precisione: ±1°C
- Sensore: NTC, 1pc
- Alimentazione elettrica: 230VAC or 120VAC, 50/60Hz
- Uscita del compressore: 30A / 250VAC (Max 1HP)
- Dimensioni (L×L×P): 142 mm × 38 mm × 35 mm
- Tipo di interruttore: Interruttore di temperatura
- Materiale: Plastica
- Conteggio unità: 1.0 Conteggio
9. Garanzia e supporto
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 websito o sulla tua piattaforma di acquisto.