1. Introducció
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. Producte acabatview
Figura 1: Davant 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.
- Pantalla digital: Shows current temperature and programming parameters.
- Botó AUX: Auxiliary function control.
- Botó SET: Accesses and confirms programming settings.
- Botons amunt / avall: Navigates menus and adjusts values.
3. Especificacions
| Paràmetre | Valor |
|---|---|
| Probe Range (PTC) | -58 a 302 °F (-50 a 150 °C) |
| Probe Range (NTC) | -58 a 230 °F (-50 a 110 °C) |
| Entrada | 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 ambient de funcionament | De 32 a 131 °C (0 a 55 °F) |
| Temperatura d'emmagatzematge | -4 a 176 °F (-20 a 80 °C) |
| Precisió | ±1% FS |
| Mostra | 3-digit, plus sign |
| Resolució | 0.1° |
| Còpia de seguretat de la memòria | Memòria no volàtil |
| Pes de l'article | 7.2 unces |
| Fabricant | Dwyer Instruments, Inc. |
4. Configuració i instal·lació
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 Muntatge
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 Connexions elèctriques
- Font d'alimentació: Connect the unit to a 115 VAC power source as indicated on the wiring diagram. Ensure power is disconnected before making any connections.
- Connexió de la sonda: Connect the appropriate PTC or NTC temperature probe to the designated input terminals. Ensure correct polarity if specified by the probe type.
- Sortides de relé: 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.
Precaució: All electrical work should be performed by qualified personnel. Disconnect all power before wiring to prevent electric shock or damage to the unit.
5. Instruccions de funcionament
Once installed and powered, the TSXT-213 will display the current temperature. The front panel buttons allow for parameter viewing and adjustment.
5.1 Funcionament bàsic
- Viewing Temperature: The default display shows the current temperature measured by the probe.
- Adjusting Setpoints:
- Premeu el botó SET button to enter the setpoint adjustment mode.
- Utilitza el Up i Avall buttons to change the desired temperature setpoint.
- Premeu SET again to confirm and save the new setpoint.
- Accessing Parameters: Manteniu premut el botó SET button for several seconds to access the programming menu. Use Up i Avall to navigate through parameters and SET per seleccionar i confirmar.
- Funció AUX: El AUX 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 Programació avançada
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. Manteniment
The Dwyer TSXT-213 is designed for reliable operation with minimal maintenance. Regular checks can help ensure continued performance.
- Neteja: Periodically clean the front panel with a soft, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Inspecció de la 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.
- Connexions de terminals: Occasionally check electrical terminal connections for tightness, especially after initial installation or if the unit has been subjected to vibration.
- Actualitzacions de programari: Comproveu el del fabricant website for any available firmware updates or new programming guides.
Avís: Disconnect power to the unit before performing any maintenance or cleaning to prevent electric shock.
7. Solució De Problemes
This section provides solutions to common issues encountered with the TSXT-213. For problems not listed here, contact technical support.
| Problema | Causa possible | Solució |
|---|---|---|
| La pantalla està en blanc | No power; incorrect wiring; internal fault. | Check power supply and wiring connections. Ensure 115 VAC is present. If power is confirmed, contact support. |
| Lectura de temperatura incorrecta | 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. |
| La unitat no respon a les pressions dels botons | Unit locked; internal fault. | Check if the keypad is locked (refer to programming manual). Power cycle the unit. If issue persists, contact support. |
8. Garantia i Suport
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. weblloc. Els termes i condicions de la garantia poden variar.
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 weblloc o embalatge del producte.
Fabricant: Dwyer Instruments, Inc.
Weblloc: www.dwyer-inst.com