1. Pengenalan
This manual provides essential information for the safe and effective use of the PPOZYLPC QDX50A Pressure Transmitter. This device is designed for accurate measurement of pressure in various media, including water, air, and oil systems. Please read this manual thoroughly before installation and operation to ensure proper functionality and to prevent damage or injury.
Figure 1: PPOZYLPC QDX50A Pressure Transmitter (Example Model)
2. Produk Lebihview
The PPOZYLPC QDX50A Pressure Transmitter is a robust and reliable sensor featuring a G1/4 transducer for versatile process connections. This specific model provides a 4-20mA output signal and measures pressure within the 0-2.5Mpa range. Its design ensures stable performance across a wide operating temperature range, making it suitable for demanding industrial and commercial applications.
Figure 2: Pressure Transmitter showing electrical connections.
Ciri-ciri utama termasuk:
- Ketepatan Tinggi: Memberikan bacaan tekanan yang tepat.
- Standard Output: 4-20mA current output for compatibility with various control systems.
- Pembinaan Tahan Lama: Designed for long-term use in challenging environments.
- Aplikasi luas: Suitable for water, air, and oil pressure monitoring.
Figure 3: Various models of pressure transmitters.
3. Spesifikasi
The following table details the technical specifications for the PPOZYLPC QDX50A Pressure Transmitter (0-2.5Mpa, 4-20mA Output).
| Ciri | Spesifikasi |
|---|---|
| Nombor Model | QDX50A |
| Julat Pengukuran | 0-2.5 Mpa |
| Isyarat Output | 4-20mA |
| Proses Penyambungan | G1/4 |
| Bekalan Kuasa | DC12V - DC24V |
| Suhu Bekerja | -20°C hingga 60°C |
| Berat Barang | 3.92 auns |
| Dimensi Pakej | 1.18 x 0.79 x 0.39 inci |
4. Persediaan
4.1 Langkah Keselamatan
- Pastikan bekalan elektrik diputuskan sebelum pemasangan atau pendawaian.
- Pakai peralatan perlindungan diri (PPE) yang sesuai.
- Verify compatibility of the transmitter with the system's pressure range and media.
- Avoid installing in areas with excessive vibration or extreme temperatures beyond specified limits.
4.2 Pemasangan Mekanikal
The QDX50A Pressure Transmitter features a G1/4 process connection. Ensure the mating port is clean and free of debris. Apply appropriate thread sealant (e.g., PTFE tape) to the threads before installation to prevent leaks. Tighten securely, but do not overtighten, which can damage the threads or sensor.
Figure 4: Pressure Transmitter showing the threaded connection and cable.
4.3 Pendawaian Elektrik
Connect the transmitter to a stable DC power supply (12V-24V) and your control system according to the following general wiring scheme. Always refer to your system's specific wiring diagrams if available.
- Kawat Merah: Power Supply Positive (+)
- Kawat Hitam: Power Supply Negative (-) / Signal Ground
- Green/Blue Wire: 4-20mA Signal Output
Ensure all connections are secure and insulated to prevent short circuits or electrical hazards.
Figure 5: Close-up of a pressure transmitter, illustrating the wiring connection point.
5. Beroperasi
5.1 Kuasa Permulaan
After completing mechanical and electrical installation, apply power to the transmitter. Monitor the output signal to confirm proper operation. The 4-20mA output will correspond to the measured pressure within the 0-2.5Mpa range.
5.2 Pressure Monitoring
The transmitter continuously measures pressure and converts it into a proportional 4-20mA current signal. This signal can be read by a compatible PLC, data logger, or display unit. A 4mA output typically corresponds to 0 Mpa, and a 20mA output corresponds to 2.5 Mpa.
5.3 Penentukuran
The QDX50A Pressure Transmitter is factory calibrated. For most applications, re-calibration is not required. If your application demands higher precision or if you suspect drift, professional re-calibration using a certified pressure calibrator may be necessary. Consult a qualified technician for calibration procedures.
6. Penyelenggaraan
Regular maintenance ensures the longevity and accuracy of your pressure transmitter.
- Pembersihan: Periodically clean the exterior of the transmitter with a soft, damp cloth. Avoid using abrasive cleaners or solvents that could damage the housing or seals.
- Pemeriksaan: Regularly inspect the process connection for any signs of leakage, corrosion, or damage. Check the electrical cable for wear or damage. Replace if necessary.
- Keadaan Persekitaran: Ensure the operating environment remains within the specified temperature and humidity ranges. Protect the transmitter from direct impact or excessive vibration.
7. Penyelesaian masalah
If you encounter issues with your pressure transmitter, refer to the following troubleshooting guide:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada Isyarat Output | No power, incorrect wiring, damaged cable. | Check power supply, verify wiring connections, inspect cable for damage. |
| Bacaan Tidak Tepat | Sensor clogged, system leak, incorrect calibration, sensor damage. | Clean sensor port, check for system leaks, consider professional re-calibration, inspect sensor for physical damage. |
| Output Bersekala | Loose wiring, electrical interference, unstable power supply. | Secure all electrical connections, check for sources of electromagnetic interference, ensure stable power supply. |
| Leakage at Connection | Improper thread sealant, insufficient tightening, damaged threads. | Reapply thread sealant, tighten connection appropriately, inspect threads for damage. |
Jika masalah berterusan selepas mengikuti langkah ini, hubungi sokongan pelanggan.
8. Waranti
PPOZYLPC warrants this product against defects in materials and workmanship for a period of one (1) year from the date of purchase. This warranty does not cover damage resulting from improper installation, misuse, unauthorized modification, or normal wear and tear. Proof of purchase is required for all warranty claims. For detailed warranty terms and conditions, please refer to the documentation included with your purchase or contact customer support.
9. Sokongan
For technical assistance, troubleshooting, or product inquiries, please contact PPOZYLPC customer support through the retailer where the product was purchased or visit the official PPOZYLPC website for contact information. When contacting support, please have your product model number (QDX50A) and purchase details readily available.