1. บทนำ
This manual provides detailed instructions for the proper installation, operation, and maintenance of the Whadda WSAA2644 Automobile Interior Instrument. This device is designed to indicate ambient temperature conditions, specifically alerting the user when temperatures approach freezing point.
2. สินค้าหมดview
The Whadda WSAA2644 is an electronic circuit board designed to monitor temperature and provide a visual alert. It includes a temperature sensor, an LED indicator, and various electronic components mounted on a printed circuit board (PCB).
Figure 1: Whadda WSAA2644 Automobile Interior Instrument circuit board. This image displays the green printed circuit board (PCB) with various electronic components including capacitors, resistors, an integrated circuit (IC), a red LED, a potentiometer, and a white terminal block. A metallic temperature sensor with wires is connected to the terminal block.
ส่วนประกอบหลัก:
- แผงวงจรพิมพ์ (PCB): The main board housing all electronic components.
- เซ็นเซอร์อุณหภูมิ: A reliable sensor with a mounting axle, designed to detect ambient temperature.
- LED Indicator (LD1): A red flashing LED that indicates temperatures near the freezing point.
- วงจรรวม (IC): An LM324N operational amplifier, central to the temperature detection logic.
- Resistors and Capacitors: Standard electronic components for circuit operation.
- โพเทนชิออมิเตอร์: For calibration or adjustment of the temperature threshold.
- เทอร์มินัลบล็อก: For connecting the temperature sensor and power supply.
3. การตั้งค่าและการติดตั้ง
Careful installation is crucial for accurate operation. Ensure the vehicle's power is disconnected before beginning installation.
- การติดตั้งเซนเซอร์:
Identify a suitable location for the temperature sensor. This location should accurately reflect the ambient temperature you wish to monitor, typically outside the vehicle's cabin but protected from direct engine heat or road spray. The sensor includes a mounting axle for secure attachment.
- การเชื่อมต่อเซนเซอร์:
Connect the wires from the temperature sensor to the designated terminals on the circuit board's terminal block. Ensure correct polarity if specified in the circuit diagram (refer to the product's schematic if available).
- การเชื่อมต่อไฟฟ้า:
Connect the power supply (e.g., 12V DC from the vehicle's electrical system) to the appropriate terminals on the circuit board. Observe correct polarity to prevent damage to the device. The device is designed to operate in cold environments, as indicated by its intended use.
- Mounting the Circuit Board:
Secure the circuit board in a protected area within the vehicle's interior, away from moisture, extreme heat, or physical damage. Ensure the LED indicator is visible if it is intended for direct user observation.
4. คู่มือการใช้งาน
Once properly installed and powered, the Whadda WSAA2644 operates automatically.
- การทำงานปกติ: When the ambient temperature is above the freezing point threshold, the LED indicator (LD1) will remain off or in a non-alert state.
- Freezing Point Alert: This set uses a flashing LED to indicate a temperature near the freezing point. During this point, the LED light will light up continuously. This indicates that the temperature has reached or fallen below a critical threshold, warning of potential ice formation.
- การสอบเทียบ (ถ้ามี): If the circuit includes a potentiometer for adjustment, it can be used to fine-tune the temperature threshold at which the LED alert activates. Refer to the circuit diagram or specific calibration instructions for precise adjustment.
5. การบำรุงรักษา
The Whadda WSAA2644 is designed for low maintenance. Follow these guidelines to ensure longevity and reliable operation:
- การตรวจสอบปกติ: Periodically check the sensor and circuit board for any signs of physical damage, corrosion, or loose connections.
- การทำความสะอาด: Keep the circuit board and sensor free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning. Do not use liquid cleaners directly on the electronic components.
- ตำแหน่งเซนเซอร์: Ensure the temperature sensor remains in its optimal position and is not obstructed, which could affect its accuracy.
6 การแก้ไขปัญหา
If the device is not functioning as expected, consider the following:
| ปัญหา | สาเหตุที่เป็นไปได้ | สารละลาย |
|---|---|---|
| LED not lighting up when temperature is low. |
|
|
| LED always on or flashing erratically. |
|
|
| การอ่านอุณหภูมิไม่ถูกต้อง |
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7. ข้อมูลจำเพาะ
- แบบอย่าง: WSAA2644
- ยี่ห้อ: วาดดา
- การทำงาน: Automobile Interior Instrument (Freezing Point Indicator)
- ตัวบ่งชี้ : Flashing LED for freezing point alert
- เซ็นเซอร์: Reliable temperature sensor with mounting axle
- น้ำหนักสินค้า: 12 Kilograms (Note: This weight seems unusually high for a circuit board and sensor. Please verify actual product weight if this is a kit or includes other components.)
- ขนาดแพ็คเกจ: 28 x 23 x 22 ซม.
- จำเป็นต้องประกอบ: No (implies it's a pre-assembled module)
- มีจำหน่ายครั้งแรก: 19 สิงหาคม 2021
8. การรับประกันและการสนับสนุน
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Whadda customer service directly. Keep your purchase receipt as proof of purchase.
For further assistance, visit the official Whadda webเว็บไซต์หรือติดต่อช่องทางการสนับสนุนของพวกเขา
