1. Inleiding
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. Produk verbyview
Figuur 1: Voorkant 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.
- Digitale skerm: Shows current temperature and programming parameters.
- AUX -knoppie: Auxiliary function control.
- SET -knoppie: Accesses and confirms programming settings.
- Op/af knoppies: Navigeer deur spyskaarte en pas waardes aan.
3. Spesifikasies
| Parameter | Waarde |
|---|---|
| Probe Range (PTC) | -58 tot 302°F (-50 tot 150°C) |
| Probe Range (NTC) | -58 tot 230°F (-50 tot 110°C) |
| Invoer | 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 |
| Omringende bedryfstemperatuur | 32 tot 131°F (0 tot 55°C) |
| Bergingstemperatuur | -4 tot 176°F (-20 tot 80°C) |
| Akkuraatheid | ±1% FS |
| Vertoon | 3-digit, plus sign |
| Resolusie | 0.1° |
| Geheue -rugsteun | Nie-vlugtige geheue |
| Item gewig | 7.2 onse |
| Vervaardiger | Dwyer Instruments, Inc. |
4. Opstelling en installering
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 Elektriese verbindings
- Kragtoevoer: Connect the unit to a 115 VAC power source as indicated on the wiring diagram. Ensure power is disconnected before making any connections.
- Sondeverbinding: Connect the appropriate PTC or NTC temperature probe to the designated input terminals. Ensure correct polarity if specified by the probe type.
- Aflos uitsette: 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.
Waarskuwing: All electrical work should be performed by qualified personnel. Disconnect all power before wiring to prevent electric shock or damage to the unit.
5. Bedryfsinstruksies
Once installed and powered, the TSXT-213 will display the current temperature. The front panel buttons allow for parameter viewing and adjustment.
5.1 Basiese werking
- Viewing Temperature: The default display shows the current temperature measured by the probe.
- Adjusting Setpoints:
- Druk die STEL button to enter the setpoint adjustment mode.
- Gebruik die Up en Af buttons to change the desired temperature setpoint.
- Druk STEL weer om die nuwe ingestelde punt te bevestig en te stoor.
- Toegang tot parameters: Druk en hou die STEL button for several seconds to access the programming menu. Use Up en Af to navigate through parameters and STEL om te kies en te bevestig.
- AUX-funksie: Die 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 Gevorderde 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. Onderhoud
The Dwyer TSXT-213 is designed for reliable operation with minimal maintenance. Regular checks can help ensure continued performance.
- Skoonmaak: Maak die voorpaneel gereeld skoon met 'n sagte, damp lap. Moenie skuur skoonmaakmiddels of oplosmiddels gebruik nie.
- Sonde-inspeksie: Inspect the temperature probe and its wiring for any signs of damage or corrosion. Ensure the probe is securely positioned in its measurement location.
- Terminale verbindings: Occasionally check electrical terminal connections for tightness, especially after initial installation or if the unit has been subjected to vibration.
- Sagteware-opdaterings: Gaan die vervaardiger na website for any available firmware updates or new programming guides.
Waarskuwing: Disconnect power to the unit before performing any maintenance or cleaning to prevent electric shock.
7. Probleemoplossing
This section provides solutions to common issues encountered with the TSXT-213. For problems not listed here, contact technical support.
| Probleem | Moontlike oorsaak | Oplossing |
|---|---|---|
| Vertoon is leeg | No power; incorrect wiring; internal fault. | Check power supply and wiring connections. Ensure 115 VAC is present. If power is confirmed, contact support. |
| Verkeerde temperatuurlesing | 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. |
| Eenheid reageer nie op knoppiedruk nie | Unit locked; internal fault. | Check if the keypad is locked (refer to programming manual). Power cycle the unit. If issue persists, contact support. |
8. Waarborg en Ondersteuning
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. webwebwerf. Waarborgbepalings en -voorwaardes kan wissel.
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 webwebwerf of produkverpakking.
Vervaardiger: Dwyer Instruments, Inc.
Webwebwerf: www.dwyer-inst.com