1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the LVSEDTAL SHT2000 Temperature Humidity Controller. This device is designed for precise control of temperature and humidity in various applications, ensuring stable and reliable performance.
2. Safety Information
Read all safety warnings and instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the power supply matches the device's specifications (AC 220V).
- All wiring should be performed by a qualified electrician.
- Do not operate the device in wet or damp conditions.
- Disconnect power before performing any wiring or maintenance.
- Keep the device away from flammable materials.
3. Product Overview
The SHT2000 is a digital temperature and humidity controller featuring a clear LCD display and user-friendly buttons for setting parameters. It supports both heating/cooling and humidifying/dehumidifying control outputs.
Figure 3.1: Overview of the SHT2000 controller showing the display interface and wiring terminals. The display indicates temperature (red) and humidity (blue) values. The wiring diagram illustrates connections for power supply, sensor, humidifying output, and heating output.
The device features a compact design with dimensions suitable for various installations.
Figure 3.2: Dimensional view of the SHT2000 controller, indicating measurements such as 70mm, 85mm, 29mm, 35mm, 75mm, and 4mm for various parts of the unit.
Internal components are designed for durability and clear display readability.
Figure 3.3: Close-up views of the SHT2000 controller, highlighting the clear digital display, robust terminal blocks for wiring, and durable internal buttons designed for long-term use.
4. Specifications
| Parameter | Value |
|---|---|
| Model Number | SHT2000 |
| Input Voltage | AC 110~230V (This model is AC 220V) |
| Temperature Range | -20°C to 60°C |
| Humidity Range | 0% to 100% RH |
| Max Measuring Temperature | 50°C - 69°C (Note: Operating range is -20°C to 60°C) |
| Power Output | 10A |
| Display Type | Digital LCD |
| Item Weight | 1.1 pounds (approx. 500 grams) |
| Package Dimensions | 0.39 x 0.39 x 0.39 inches (Note: This seems like a placeholder, refer to Figure 3.2 for actual device dimensions) |
5. Setup and Installation
5.1 Wiring Instructions
Refer to the wiring diagram below for correct connections. Ensure all power is disconnected before wiring.
- Power Supply: Connect the AC 220V power supply to terminals 1 and 2.
- Sensor: Connect the temperature and humidity sensor to terminals 3 and 4. Ensure correct polarity if applicable.
- Humidifying Output: Connect the humidifying device (e.g., humidifier) to terminals 5 and 6.
- Heating Output: Connect the heating device (e.g., water heater) to terminals 7 and 8.
- Important Note: Strictly distinguish the interface of relay, sensor, and power. The connection of sensor and power load and power wire should be kept at a proper distance to avoid interference.
Figure 5.1: Detailed wiring diagram for the SHT2000 controller, showing connections for AC90-235V power, sensing line, and outputs for water heater (heating) and humidifier (humidifying).
5.2 Mounting
The controller is designed for panel mounting. Ensure adequate ventilation around the unit and avoid locations with excessive vibration or direct sunlight.
6. Operating Instructions
6.1 Power On
After completing all wiring, connect the power supply. The display will light up, showing the current temperature and humidity readings.
6.2 Setting Temperature and Humidity
The SHT2000 allows you to set desired temperature and humidity values. Specific button functions (e.g., SET, UP, DOWN) are typically used for this. Refer to the device's front panel for button labels.
- Press the SET button to enter setting mode.
- Use the UP and DOWN arrows to adjust the desired temperature or humidity setpoint.
- Press SET again to confirm the value and move to the next parameter, or wait for a few seconds for the device to automatically save and exit setting mode.
6.3 Temperature Calibration
The device supports temperature calibration to ensure accuracy. This feature allows you to adjust the displayed temperature to match a known reference thermometer.
- Access the calibration menu (usually by long-pressing a specific button or a combination).
- Adjust the calibration offset using the UP/DOWN buttons.
- Save the setting.
6.4 Cooling Control Output Delay Protection
This function prevents rapid cycling of cooling equipment, extending its lifespan. When enabled, the cooling output will have a delay before restarting after being turned off.
7. Maintenance
7.1 Cleaning
Wipe the device's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the device.
7.2 Sensor Care
Keep the temperature and humidity sensor clean and free from dust or debris. Avoid exposing the sensor to extreme physical shock or corrosive environments, which can affect its accuracy.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | No power supply; incorrect wiring; blown fuse | Check power connection; verify wiring according to diagram; check internal fuse (if accessible and user-serviceable, otherwise contact support). |
| Incorrect temperature/humidity reading | Sensor dirty or damaged; sensor not connected properly; calibration needed | Clean sensor; check sensor wiring; perform temperature calibration (Section 6.3). |
| Output (heating/humidifying) not activating | Set point not reached; wiring issue; device malfunction | Verify set points and current readings; check output device wiring; ensure cooling delay protection is not active if applicable. |
9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt for warranty claims.