1. Einleitung
The MMUNNA ETC-200+ is a versatile temperature controller designed for refrigeration and heating applications. It features precise temperature measurement and control, defrost management, temperature calibration, start-up delay protection, and an alarm function for temperature limit excursions. This manual provides essential information for the safe and effective installation, operation, and maintenance of your ETC-200+ unit.
2. Sicherheitshinweise
- Strictly distinguish the interface connections for the relay, sensor, and power supply. Incorrect wiring can cause damage or malfunction.
- Ensure proper connection of the sensor and power wires.
- Keep the sensor down-lead and power wire at a proper distance from each other to avoid interference.
- Trennen Sie immer die Stromversorgung, bevor Sie Verkabelungs- oder Wartungsarbeiten durchführen.
3. Produktüberschreitungview
The ETC-200+ features a clear digital display, control buttons, and terminal blocks for electrical connections. It is designed for panel mounting.
Abbildung 3.1: Vorderseite view of the ETC-200+ Temperature Controller, showing the digital display and control buttons.
Figure 3.2: Control panel with SET, Up (▲), and Down (▼) buttons for operation and parameter adjustment.
4. Spezifikationen
Refer to the table below for detailed technical specifications of the ETC-200+ Temperature Controller.
| Besonderheit | Spezifikation |
|---|---|
| Arbeitsvolumentage | 220V AC (<3W) |
| Measuring & Controlling Temperature Range | -40℃ bis 120℃ |
| Auflösung | 0.1℃ (-40℃ to 99.9℃); 1℃ (other ranges) |
| Genauigkeit | ±1℃ (-40℃ to 70℃); <±2℃ (other ranges) |
| Netzteil Voltage | 220VAC ± 10%; 50Hz / 60Hz |
| Relay Contact Capacity (Refrigeration) | 10A/220VAC (max load 0.5HP/220VAC) |
| Relay Contact Capacity (Defrost) | 10 A/220 V Wechselstrom |
| Sensortyp | NTC sensor (10K/25℃, B value 3435K) |
| Sensorlänge | 2.0 m (einschließlich Sonde) |
| Umgebungstemperatur | 0℃ bis 60℃ |
| Lagertemperatur | -30℃ bis 75℃ |
| Relative Luftfeuchtigkeit | 20 % bis 85 % (nicht kondensierend) |
| Größe der Frontplatte | 75mm (L) × 34.5mm (W) |
| Montagegröße | 71mm (L) × 29mm (W) |
| Produktgröße | 75 mm (L) × 34.5 mm (B) × 85 mm (T) |
| Artikelgewicht | 50 Gramm (ca. 1.76 Unzen) |
Figure 4.1: Physical dimensions of the ETC-200+ unit and the NTC sensor.
5. Einrichtung und Installation
Proper installation is crucial for the safe and accurate operation of the ETC-200+. Ensure all connections are secure and correct.
5.1 Montage
The ETC-200+ is designed for panel mounting. Cut an opening of 71mm (length) by 29mm (width) in your panel. Insert the controller into the opening and secure it using the provided clips or mounting brackets.
5.2 Schaltplan
Refer to the wiring diagram below for connecting the power supply, temperature sensor, compressor (refrigeration output), and defrost heater (defrost output). Ensure all connections are made with appropriate gauge wires and are properly insulated.
Figure 5.1: Wiring diagram for the ETC-200+ Temperature Controller. Connect 220VAC power to terminals 9 and 10. The NTC sensor connects to terminals 7 and 8. The compressor (refrigeration) output is on terminals 1 and 2. The defrost output is on terminals 4 and 5.
- Power Supply (220VAC): Connect the 220VAC power source to terminals 9 and 10.
- Sensor: Schließen Sie den NTC-Temperatursensor an die Klemmen 7 und 8 an.
- Compressor (Refrigeration Output): Connect the refrigeration load (e.g., compressor) to terminals 1 and 2. This output has a capacity of 10A/220VAC, with a maximum driving load of 0.5HP/220VAC.
- Defrost (Defrost Output): Connect the defrost heater or load to terminals 4 and 5. This output has a capacity of 10A/220VAC.
6. Bedienungsanleitung
The ETC-200+ provides intuitive controls for setting and monitoring temperature.
6.1 Grundlegende Anzeige
The digital display shows the current measured temperature. The unit will display ℃ (Celsius).
6.2 Einstellen von Temperatur und Parametern
To adjust the desired temperature setpoint or other operational parameters:
- Drücken Sie die SATZ Taste einmal zu view the current temperature setpoint.
- While the setpoint is displayed, use the ▲ (Nach oben) or ▼ (Runter) Tasten, um den Wert einzustellen.
- Drücken SATZ again to confirm the new setpoint and exit.
- For advanced parameters (e.g., defrost cycle, start-up delay, temperature calibration, alarm limits), a password input may be required. Refer to the detailed parameter list in the full product manual for specific codes and adjustment procedures.
6.3 Refrigeration and Heating Control
The controller can switch between refrigeration and heating modes based on the configured parameters and temperature setpoint. The relay outputs will activate or deactivate the connected compressor or heating element to maintain the desired temperature.
6.4 Abtausteuerung
The ETC-200+ includes a defrost control function. The defrost cycle and duration can be configured through the advanced parameters to prevent ice buildup in refrigeration systems.
6.5 Alarmfunktion
The unit will trigger an alarm when the measured temperature exceeds or falls below the set temperature limits. These limits are configurable in the advanced settings.
7. Wartung
To ensure the longevity and optimal performance of your ETC-200+ Temperature Controller, follow these general maintenance guidelines:
- Reinigung: Regularly wipe the front panel with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the display or casing.
- Verbindungen: Überprüfen Sie regelmäßig alle elektrischen Verbindungen, um sicherzustellen, dass sie fest sitzen und frei von Korrosion sind.
- Sensor: Ensure the temperature sensor is clean and properly positioned for accurate readings. Avoid physical damage to the sensor probe or cable.
- Belüftung: Ensure the controller's ventilation openings (if any) are not obstructed to prevent overheating.
8. Fehlerbehebung
If you encounter issues with your ETC-200+ controller, consider the following common problems and solutions:
- Kein Display/Keine Stromversorgung:
- Check the 220VAC power supply connection to terminals 9 and 10.
- Prüfen Sie, ob die Stromquelle aktiv ist.
- Falsche Temperaturanzeige:
- Check the NTC sensor connection to terminals 7 and 8.
- Ensure the sensor probe is correctly placed and not damaged.
- Perform a temperature calibration if necessary (refer to advanced parameter settings).
- Refrigeration/Heating Not Activating:
- Verify the set temperature and current temperature.
- Check the connections to the compressor (terminals 1 and 2) or defrost heater (terminals 4 and 5).
- Ensure the load (compressor/heater) is functional.
- Check for any active start-up delays or alarm conditions that might prevent operation.
- Alarm dauerhaft eingeschaltet:
- Check if the temperature is genuinely outside the set alarm limits.
- Adjust alarm limits in the advanced parameter settings if they are too restrictive.
For persistent issues or complex problems, please contact MMUNNA customer support.
9. Garantie und Support
For warranty information and technical support, please refer to the product packaging or contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
