คู่มือผู้ใช้เครื่องควบคุมอุณหภูมิดิจิทัลอิเล็กทรอนิกส์ Ranco ETC-141000-000

1. บทนำ

The Ranco ETC Series Electronic Temperature Control, model ETC-141000-000, is designed as a full-featured electronic replacement for electro-mechanical temperature controls commonly used in commercial refrigeration applications. This controller offers significant application flexibility due to its wide temperature range, single and two-stage capability, selectable heating/cooling modes, and multi-voltage input (120/208/240V AC).

2. ข้อมูลด้านความปลอดภัยที่สำคัญ

• Always disconnect power to the unit before installation, servicing, or maintenance to prevent electrical shock.
• Installation should be performed by a qualified technician in accordance with all local and national electrical codes.
• ตรวจสอบแหล่งจ่ายไฟ voltage matches the controller's specifications (120/208/240V AC).
• Do not operate the controller with damaged wiring or if the enclosure is compromised.
• The sensor is rated IP67 for dust and water protection; however, ensure proper sealing and protection for all electrical connections.

3. สินค้าหมดview และคุณสมบัติ

The Ranco ETC-141000-000 controller provides precise temperature management with a user-friendly interface and robust design. Key features include:

• ช่วงอุณหภูมิที่กว้าง: Operates from -30°F to 220°F (-34.4°C to 104.4°C).
• Adjustable Differential: Allows setting a differential from 1°F to 30°F (-17°C to -1°C).
• LCD Read-out: Displays sensor temperature, control settings, and relay status with a white backlight.
• สูง Amp เอาท์พุทรีเลย์: โสด stagอีกับ 16 Amps @ 120V AC and 8 Amps @ 208/240V AC.
• EEPROM Memory: Retains all control settings during power outagใช่
• ล็อคปุ่มกด: Prevents unauthorized alteration of settings.
• Sensor Lead: Includes an 8-foot lead, extendable up to 400 feet using 18 or 22-gauge thermostat wire.
• Easy 4-Step Set-up: Simplifies initial configuration.
• Heavy-Duty Relay: 1 HP rated for demanding applications.
• โหมดที่เลือกได้: Choose between Fahrenheit or Celsius, and heating or cooling modes.
• เอกสารแนบ: Available in NEMA 1 case and NEMA 4X models for outdoor use.

Image showing the Ranco ETC-141000-000 Digital Temperature Electronic Controller, its retail packaging, and the included instruction sheet. The packaging displays the UPC 00686608004413 and model number ETC-141000.

The UPC for this product is 00686608004413.

4. การตั้งค่าและการติดตั้ง

4.1. การติดตั้ง

Mount the controller in a location that is easily accessible for viewing and adjustments, away from direct heat sources or excessive vibration. Ensure the chosen location is appropriate for the controller's enclosure type (NEMA 1 for indoor use, NEMA 4X for outdoor or wash-down environments). Use appropriate fasteners to secure the unit firmly.

4.2. การเดินสาย

All wiring must comply with local and national electrical codes. It is recommended that a qualified electrician perform the installation.

1. ตัดการเชื่อมต่อไฟฟ้า: Ensure all power to the circuit is disconnected before beginning any wiring.
2. กำลังไฟเข้า: Connect the appropriate line voltage (120V, 208V, or 240V AC) to the designated power input terminals on the controller.
3. โหลดเอาต์พุต: Connect the controlled device (e.g., compressor, heater) to the output relay terminals. Observe the maximum current ratings (16 Amps @ 120V AC, 8 Amps @ 208/240V AC).
4. การเชื่อมต่อเซนเซอร์: Connect the temperature sensor lead to the sensor input terminals. The 8-foot sensor lead can be extended up to 400 feet using 18 or 22-gauge thermostat wire. Ensure all connections are secure and properly insulated.
5. การต่อลงดิน: Properly ground the controller according to electrical codes.

ภาพระยะใกล้ view of the Ranco ETC-141000-000 Digital Temperature Electronic Controller, highlighting the digital display, control buttons (SET, Up, Down), and the NEMA 4X outdoor enclosure rating. The temperature sensor is also visible.

5. คู่มือการใช้งาน

The ETC-141000-000 features an intuitive interface for setting and monitoring temperature.

5.1. Initial Power-Up and Basic Settings

Upon initial power-up, the controller will perform a self-test. Follow the easy 4-step set-up process outlined in the quick start guide (typically included with the product) to configure basic parameters.

5.2. Setting Temperature (Setpoint)

1. กดปุ่ม ชุด button once. The current setpoint will flash on the display.
2. ใช้ UP or ลง arrow buttons to adjust the setpoint to the desired temperature.
3. กดปุ่ม ชุด button again to confirm and save the new setpoint, or wait a few seconds for it to automatically save and return to normal operation.

5.3. Selecting Heating/Cooling Mode

The controller can operate in either heating or cooling mode. Refer to the detailed programming instructions in the full manual for specific steps to switch between these modes. This setting determines whether the output relay activates when the temperature rises above or falls below the setpoint.

5.4. Differential Adjustment

The differential (also known as hysteresis) prevents rapid cycling of the controlled device. To adjust the differential (range 1°F to 30°F):

1. Access the advanced programming menu (refer to the full manual for specific button combinations).
2. Navigate to the differential setting parameter.
3. ใช้ UP or ลง arrow buttons to set the desired differential value.
4. Save the setting and exit the programming menu.

5.5. การล็อคปุ่มกด

To prevent unauthorized changes to settings, the keypad can be locked. Consult the full instruction manual for the specific procedure to enable and disable the keypad lockout feature.

6. การบำรุงรักษา

The Ranco ETC-141000-000 is designed for reliable operation with minimal maintenance.

• การทำความสะอาด: ควรเช็ดทำความสะอาดภายนอกของตัวควบคุมเป็นระยะด้วยผ้าเนื้อนุ่มและแห้งamp ผ้า ห้ามใช้สารทำความสะอาดที่มีฤทธิ์กัดกร่อนหรือตัวทำละลาย
• การตรวจสอบเซ็นเซอร์: Regularly inspect the temperature sensor and its lead for any signs of damage or corrosion. Ensure the sensor is properly positioned for accurate temperature readings. The sensor is IP67 rated, but physical damage can compromise its integrity.
• การตรวจสอบการเชื่อมต่อ: ตรวจสอบเป็นประจำทุกปี หรือตามความจำเป็น ว่าการเชื่อมต่อทางไฟฟ้าทั้งหมดแน่นหนาและปราศจากสนิม

7 การแก้ไขปัญหา

If you encounter issues with your Ranco ETC-141000-000 controller, refer to the following common troubleshooting steps:

• ไม่มีพลังงาน/ปิดจอแสดงผล: Check the power supply to the controller. Ensure circuit breakers are not tripped and wiring connections are secure.
• การอ่านอุณหภูมิไม่ถูกต้อง: Verify the sensor is properly connected and positioned. Check for any physical damage to the sensor or its lead.
• เอาต์พุตไม่ทำงาน: Confirm the setpoint and differential settings are correct for the desired operation (heating/cooling). Check the relay status on the LCD. Ensure the load device is functioning correctly.
• แป้นพิมพ์ไม่ตอบสนอง: Check if the keypad lockout feature is enabled. Refer to the operating instructions to disable it if necessary.
• พฤติกรรมผิดปกติ: Disconnect power for a few minutes and then reapply to reset the unit. If issues persist, contact Ranco technical support.

8. ข้อมูลจำเพาะทางเทคนิค

9. การรับประกันและการสนับสนุน

For warranty information, technical support, or service inquiries regarding your Ranco ETC-141000-000 Digital Temperature Electronic Controller, please contact Ranco customer service or visit their official website. Keep your purchase receipt and model number handy when contacting support.