1. Introduzione
The Dwyer Series TSXT Digital Temperature Switch is engineered for precise refrigeration system control. This device is compatible with both PTC and NTC temperature probe types, enabling comprehensive management of various refrigeration components including the compressor, defrost cycles, fan, alarm functions, and internal lighting. Its design supports master/slave configurations, facilitating synchronized defrost operations across multiple units. User programming is accessible via the intuitive front keypad or through the optional TS2-K programming key.
2. Prodotto finitoview
Figura 1: Davanti view of the Dwyer TSXT-213 Digital Temperature Switch. The image displays the digital temperature readout, along with 'AUX', 'SET', 'Up', and 'Down' control buttons. The unit is black with a blue digital display.
The TSXT-213 features a clear digital display for temperature readings and several buttons for configuration and operation.
- Display digitale: Mostra la temperatura attuale e i parametri di programmazione.
- Pulsante AUX: Controllo delle funzioni ausiliarie.
- Pulsante IMPOSTA: Accesses and confirms programming settings.
- Pulsanti su/giù: Consente di navigare nei menu e di regolare i valori.
3. Specifiche
| Parametro | Valore |
|---|---|
| Probe Range (PTC) | da -58 a 302°F (da -50 a 150°C) |
| Probe Range (NTC) | da -58 a 230°F (da -50 a 110°C) |
| Ingresso | PTC (1000 Ω @ 25°C) or NTC (10 KΩ @ 25°C) thermistor |
| Output (Relay 1) | SPST, 16 A @ 240 VAC resistive, 10 FLA, 60 LRA |
| Output (Relay 2) | SPST, 5 A @ 240 VAC resistive |
| Output (Relay 3) | SPST, 8 A @ 240 VAC resistive |
| Temperatura ambiente di esercizio | da 32 a 131 °F (da 0 a 55 °C) |
| Temperatura di conservazione | da -4 a 176°F (da -20 a 80°C) |
| Precisione | ±1% valore di fondo scala |
| Display | 3-digit, plus sign |
| Risoluzione | 0.1° |
| Backup della memoria | Memoria non volatile |
| Peso dell'articolo | 7.2 once |
| Produttore | Dwyer Instruments, Inc. |
4. Configurazione e installazione
Proper installation is critical for the safe and accurate operation of the TSXT-213. Refer to the wiring diagram typically found on the unit's casing or in the full manufacturer's documentation for specific connection details.
4.1 Montaggio
The TSXT-213 is designed for panel mounting. Ensure adequate space for ventilation and access to wiring terminals. Secure the unit firmly in its designated panel cutout.
4.2 collegamenti elettrici
- Alimentazione elettrica: Connect the unit to a 115 VAC power source as indicated on the wiring diagram. Ensure power is disconnected before making any connections.
- Connessione sonda: Connect the appropriate PTC or NTC temperature probe to the designated input terminals. Ensure correct polarity if specified by the probe type.
- Uscite relè: Connect the compressor, defrost heater, fan, alarm, and light circuits to the respective relay output terminals (Relay 1, Relay 2, Relay 3) according to your system's requirements and the wiring diagram. Observe all local electrical codes and safety standards.
- Modbus Connection (Optional): If utilizing Modbus communication, connect the Modbus lines to the appropriate terminals.
Attenzione: All electrical work should be performed by qualified personnel. Disconnect all power before wiring to prevent electric shock or damage to the unit.
5. Istruzioni per l'uso
Once installed and powered, the TSXT-213 will display the current temperature. The front panel buttons allow for parameter viewing e regolazione.
5.1 Funzionamento di base
- Viewing Temperature: The default display shows the current temperature measured by the probe.
- Adjusting Setpoints:
- Premere il tasto IMPOSTATO button to enter the setpoint adjustment mode.
- Utilizzare il Up E Giù buttons to change the desired temperature setpoint.
- Premere IMPOSTATO nuovamente per confermare e salvare il nuovo setpoint.
- Accesso ai parametri: Premere e tenere premuto il tasto IMPOSTATO button for several seconds to access the programming menu. Use Up E Giù to navigate through parameters and IMPOSTATO per selezionare e confermare.
- Funzione ausiliaria: IL AUSILIARIO button typically controls an auxiliary function, such as manual defrost or light control, depending on configuration. Refer to the detailed programming manual for specific AUX button functionality.
5.2 Programmazione avanzata
The TSXT-213 offers extensive programming options for compressor differential, defrost cycles, fan control, alarm thresholds, and master/slave configurations. These advanced settings are accessed through the programming menu. For detailed instructions on each parameter, consult the comprehensive programming guide provided by Dwyer Instruments, Inc.
Alternatively, the optional TS2-K programming key can be used for quick and efficient configuration of multiple units.
6. Manutenzione
The Dwyer TSXT-213 is designed for reliable operation with minimal maintenance. Regular checks can help ensure continued performance.
- Pulizia: Pulire periodicamente il pannello frontale con un panno morbido eamp panno. Non usare detergenti abrasivi o solventi.
- Ispezione della sonda: Inspect the temperature probe and its wiring for any signs of damage or corrosion. Ensure the probe is securely positioned in its measurement location.
- Connessioni terminali: Occasionally check electrical terminal connections for tightness, especially after initial installation or if the unit has been subjected to vibration.
- Aggiornamenti software: Controllare il produttore website for any available firmware updates or new programming guides.
Avvertimento: Disconnect power to the unit before performing any maintenance or cleaning to prevent electric shock.
7. Risoluzione Dei Problemi
This section provides solutions to common issues encountered with the TSXT-213. For problems not listed here, contact technical support.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il display è vuoto | No power; incorrect wiring; internal fault. | Check power supply and wiring connections. Ensure 115 VAC is present. If power is confirmed, contact support. |
| Lettura della temperatura errata | Faulty probe; incorrect probe type selected in settings; poor probe connection. | Verify probe type (PTC/NTC) matches setting. Check probe wiring for damage or loose connections. Test probe if possible. Replace probe if faulty. |
| Relay outputs not activating | Setpoint not met; programming error; faulty relay. | Check setpoint and differential settings. Review programming parameters. Verify load connections. If all settings are correct and load is functional, relay may be faulty. |
| L'unità non risponde alla pressione dei pulsanti | Unit locked; internal fault. | Check if the keypad is locked (refer to programming manual). Power cycle the unit. If issue persists, contact support. |
8. Garanzia e supporto
For specific warranty information regarding the Dwyer TSXT-213 Digital Temperature Switch, please refer to the documentation included with your purchase or visit the official Dwyer Instruments, Inc. websito. I termini e le condizioni della garanzia possono variare.
For technical assistance, troubleshooting beyond this manual, or to inquire about replacement parts, please contact Dwyer Instruments, Inc. customer support directly. Contact details can typically be found on the manufacturer's websito o confezione del prodotto.
Produttore: Dwyer Instruments, Inc.
Websito: www.dwyer-inst.com