1. Introduzione
The Selec CH-403-2 is a precision temperature chiller controller designed for industrial and commercial applications requiring accurate temperature regulation. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your device. Please read this manual thoroughly before installation and operation.
2. Informazioni di sicurezza
Osservate sempre e seguenti precauzioni di sicurezza per prevene ferite è danni à u dispusitivu:
- Assicuratevi chì l'alimentazione sia scollegata prima di fà qualsiasi cablaggio o manutenzione.
- L'installazione è a manutenzione devenu esse effettuate solu da persunale qualificatu.
- Verificate chì l'alimentazione voltage matches the specifications of the controller.
- Do not expose the controller to excessive moisture, dust, or corrosive gases.
- Assicuratevi di mette a terra curretta per prevene scossa elettrica.
3. Setup
3.1 Unpacking
Carefully remove the controller from its packaging. Inspect the device for any signs of damage during transit. Report any damage to your supplier immediately.
3.2 Muntamentu
The CH-403-2 is designed for panel mounting. Cut an opening of 45mm x 45mm (1.77" x 1.77") in the panel. Insert the controller into the opening and secure it using the provided mounting clamps. Ensure a snug fit to prevent dust and moisture ingress.
3.3 Connessioni Wiring
Refer to the wiring diagram located on the side of the controller or in the detailed technical specifications. Ensure all connections are secure and correct before applying power.
- Alimentazione elettrica: Connect the appropriate AC voltage (e.g., 230V AC) to the designated power terminals.
- Input Sensor: Connect the temperature sensor (e.g., NTC, PT100) to the sensor input terminals. Observe polarity if applicable.
- Output di cuntrollu: Connect the chiller or heating element to the relay output terminals. Ensure the load current does not exceed the relay's maximum rating.
- Alarm Output (Optional): If applicable, connect external alarm devices to the alarm output terminals.
3.4 Power-Up iniziale
After all connections are verified, apply power to the controller. The display should illuminate, showing the current temperature and default settings.
4. Uperativu
4.1 Mustrà Overview
The front panel features a digital display showing the process value (PV) and set point (SV), along with indicator LEDs for output status (e.g., ON/OFF, Alarm).
4.2 Funzioni di u buttone
- Pulsante SET: Adupratu per entre in u modu di impostazione di i parametri è cunfirmà e selezioni.
- Pulsanti SU/GIÙ: Used to navigate through parameters and adjust values.
- Pulsante MODE: Used to switch between display modes or access advanced settings.
4.3 Setting Temperature Setpoint (SV)
- Press u SET button once. The SV value will flash.
- Aduprà u UP or GIÙ buttons to adjust the setpoint to the desired temperature.
- Press u SET button again to confirm the new setpoint. The display will return to showing the PV.
4.4 Configurazione di Parametru
To access advanced parameters such as hysteresis, calibration offset, or delay times, press and hold the SET button for several seconds until the first parameter code appears. Use the SU/GIÙ buttons to navigate through parameters and the SET button to select and modify values. Refer to the detailed parameter list in the full technical manual for specific codes and ranges.
5. Mantenimentu
5.1 Pulizia
Clean the front panel of the controller periodically with a soft, damp pannu. Ùn aduprate micca detergenti abrasivi o solventi, postu chì questi ponu dannà u display o casing. Ensure no liquid enters the device.
5.2 Cuntrolli regulari
- Inspect wiring connections for looseness or corrosion.
- Verify the temperature sensor is clean and properly installed.
- Check for any unusual noises or smells from the controller or connected equipment.
5.3 Calibrazione
If temperature readings appear inaccurate, the sensor or controller may require calibration. Refer to the advanced parameter settings for sensor offset adjustment. For precise calibration, consult a qualified technician.
6. Risoluzione di prublemi
This section addresses common issues you might encounter. For problems not listed here, contact technical support.
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| No display / Power off | Nisuna alimentazione elettrica; Cablaggio incorrectu; Fusibile bruciatu | Check power connections; Verify voltage; Replace fuse if necessary. |
| Lecture incorrecte de la température | Sensor faulty; Sensor wiring incorrect; Calibration offset needed | Check sensor connections; Replace sensor; Adjust calibration offset in parameters. |
| Output not switching | Setpoint not reached; Hysteresis setting too wide; Output relay faulty | Verify setpoint and current temperature; Adjust hysteresis; Test output relay (by qualified personnel). |
| Error Code 'E1' | Circuitu apertu sensore | Check sensor wiring for breaks; Replace sensor. |
| Error Code 'E2' | Cortu circuitu di sensor | Check sensor wiring for shorts; Replace sensor. |
7. Specificazioni
| Parametru | Valore |
|---|---|
| Mudellu | CH-403-2 |
| Tipu di input | NTC / PT100 (selectable) |
| Gamma di temperatura | -50°C to 150°C (sensor dependent) |
| Control Output | 1 x Relay (NO/NC), 5A @ 250V AC resistive |
| Output Auxiliar | 1 x Relay (NO), 3A @ 250V AC resistive (Alarm) |
| Corsu Voltage | 230V AC ±10%, 50/60 Hz |
| Accuratezza | ±1% of full scale ±1 digit |
| Mostra | LED di 3 cifri |
| Muntà | Panel Mount (45x45mm cutout) |
| Temperature di funziunamentu | 0°C à 50°C |
| Dimensioni (LxAxP) | 48 mm x 48 mm x 85 mm |
8. Garanzia è Support
Selec products are covered by a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Selec website. For technical support, service, or spare parts, please contact your authorized Selec distributor or customer service department, providing your product model number (CH-403-2) and serial number.
