1. Introduktion
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. Produktet er slutview
Figur 1: Front 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.
- Digital skærm: Shows current temperature and programming parameters.
- AUX -knap: Auxiliary function control.
- SET -knap: Accesses and confirms programming settings.
- Op/Ned knapper: Navigerer i menuer og justerer værdier.
3. Specifikationer
| Parameter | Værdi |
|---|---|
| Probe Range (PTC) | -58 til 302°F (-50 til 150°C) |
| Probe Range (NTC) | -58 til 230°F (-50 til 110°C) |
| Input | 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 |
| Omgivende driftstemperatur | 32 til 131°F (0 til 55°C) |
| Opbevaringstemperatur | -4 til 176°F (-20 til 80°C) |
| Nøjagtighed | ±1 % FS |
| Vise | 3-digit, plus sign |
| Opløsning | 0.1° |
| Backup af hukommelse | Ikke-flygtig hukommelse |
| Varens vægt | 7.2 ounce |
| Fabrikant | Dwyer Instruments, Inc. |
4. Opsætning og installation
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 Montering
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 Elektriske forbindelser
- Strømforsyning: Connect the unit to a 115 VAC power source as indicated on the wiring diagram. Ensure power is disconnected before making any connections.
- Probeforbindelse: Connect the appropriate PTC or NTC temperature probe to the designated input terminals. Ensure correct polarity if specified by the probe type.
- Relæudgange: 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.
Forsigtighed: All electrical work should be performed by qualified personnel. Disconnect all power before wiring to prevent electric shock or damage to the unit.
5. Betjeningsvejledning
Once installed and powered, the TSXT-213 will display the current temperature. The front panel buttons allow for parameter viewning og justering.
5.1 Grundlæggende betjening
- Viewing Temperature: The default display shows the current temperature measured by the probe.
- Adjusting Setpoints:
- Tryk på SÆT button to enter the setpoint adjustment mode.
- Brug Up og Ned buttons to change the desired temperature setpoint.
- Trykke SÆT again to confirm and save the new setpoint.
- Accessing Parameters: Tryk og hold på SÆT button for several seconds to access the programming menu. Use Up og Ned to navigate through parameters and SÆT for at vælge og bekræfte.
- AUX funktion: De 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 Avanceret programmering
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. Vedligeholdelse
The Dwyer TSXT-213 is designed for reliable operation with minimal maintenance. Regular checks can help ensure continued performance.
- Rensning: Periodically clean the front panel with a soft, damp klæde. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
- Sondeinspektion: Inspect the temperature probe and its wiring for any signs of damage or corrosion. Ensure the probe is securely positioned in its measurement location.
- Terminalforbindelser: Occasionally check electrical terminal connections for tightness, especially after initial installation or if the unit has been subjected to vibration.
- Softwareopdateringer: Tjek producentens website for any available firmware updates or new programming guides.
Advarsel: Disconnect power to the unit before performing any maintenance or cleaning to prevent electric shock.
7. Fejlfinding
This section provides solutions to common issues encountered with the TSXT-213. For problems not listed here, contact technical support.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Skærmen er tom | No power; incorrect wiring; internal fault. | Check power supply and wiring connections. Ensure 115 VAC is present. If power is confirmed, contact support. |
| Forkert temperaturaflæsning | 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. |
| Enheden reagerer ikke på knaptryk | Unit locked; internal fault. | Check if the keypad is locked (refer to programming manual). Power cycle the unit. If issue persists, contact support. |
8. Garanti og support
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. webwebsted. Garantivilkår og -betingelser kan variere.
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 webwebsted eller produktemballage.
Fabrikant: Dwyer Instruments, Inc.
Webwebsted: www.dwyer-inst.com
