HM Digital PH-200 Waterproof pH Meter

การแนะนำ

This user manual provides comprehensive instructions for the HM Digital PH-200 Waterproof pH Meter. The PH-200 is a digital, waterproof pH meter designed for accurate pH and temperature measurements across various applications, including water purification, wastewater regulation, aquaculture, hydroponics, and scientific testing. It offers fast, reliable results for both hobbyists and professionals.

สินค้าเกินview

ด้านหน้า view of the HM Digital PH-200 pH Meter, showing the display and control buttons.

Diagram illustrating the dimensions of the PH-200 pH Meter, showing a length of 7.3 inches and a width of 1.3 inches.

Image highlighting key specifications of the PH-200, including measurement capabilities, calibration, and waterproof rating.

คุณสมบัติหลัก:

• Measures pH and Temperature, with a range of 0-14 pH, 0-80 °C, and 32-176 °F.
• Autoranging three-point calibration with digital fine-tuning for enhanced accuracy.
• Waterproof housing with an IP-67 rating, ensuring durability and protection against water ingress.
• Includes storage solution in a sponge embedded in a clear cap to keep the sensor hydrated.
• Features an auto-off function to conserve battery life, a data-hold function for easy reading, and a low-battery indicator.
• Digital Calibration via push button for user convenience.

การตั้งค่า

1. การแกะกล่อง: Carefully remove the PH-200 meter from its packaging. Inspect for any visible damage.
2. การติดตั้งแบตเตอรี่: The meter requires 2 AAA batteries. Open the battery compartment, insert the batteries according to the polarity indicators, and securely close the compartment.
3. Initial Sensor Hydration: The pH sensor must remain wet at all times. The meter comes with a clear cap containing a sponge soaked in storage solution. Ensure the sponge is moist. If it appears dry, add a few drops of pH electrode storage solution or pH 4.0 buffer solution to rehydrate it.
4. การล้าง: Before first use and between measurements, rinse the electrode with distilled or deionized water. Do not wipe the electrode, as this can create static electricity and affect readings.

คำแนะนำการใช้งาน

1. เปิด/ปิดเครื่อง:

กดปุ่ม เปิด/ปิด button to turn the meter on or off. The meter will automatically shut off after 10 minutes of non-use to conserve battery life.

2. การวัด:

1. ถอดฝาครอบป้องกันออกจากอิเล็กโทรด
2. ล้างอิเล็กโทรดด้วยน้ำกลั่น
3. Immerse the electrode into the solution to be tested, ensuring the sensor is fully submerged.
4. Gently stir the meter and wait for the reading to stabilize on the display. The pH value and temperature will be shown.
5. หากต้องการล็อกค่าที่แสดงบนหน้าจอ ให้กดปุ่ม ถือ ปุ่ม กดอีกครั้งเพื่อปล่อย
6. After measurement, rinse the electrode with distilled water and replace the protective cap, ensuring the sponge remains moist with storage solution.

3. การสอบเทียบ:

Regular calibration is crucial for accurate readings. The PH-200 features an auto-ranging three-point calibration. Use fresh, quality pH buffer solutions (e.g., pH 4.0, 7.0, and 10.0).

1. Prepare two or three calibration buffer solutions (e.g., pH 7.0 and pH 4.0 for acidic range, or pH 7.0 and pH 10.0 for alkaline range).
2. Turn on the meter and rinse the electrode with distilled water.
3. จุ่มอิเล็กโทรดลงในสารละลายบัฟเฟอร์แรก (เช่น pH 7.0)
4. กดปุ่มค้างไว้ TEMP/CAL button until "CAL" appears on the display. The meter will automatically recognize the buffer solution and calibrate. Wait for "END" to appear, indicating successful calibration.
5. ล้างอิเล็กโทรดด้วยน้ำกลั่น
6. Repeat the process for the second buffer solution (e.g., pH 4.0 or pH 10.0). For optimal accuracy, calibrate with a buffer solution close to your expected sampค่า pH

4. การเลือกหน่วยวัดอุณหภูมิ:

หากต้องการสลับระหว่างองศาเซลเซียส (°C) และองศาฟาเรนไฮต์ (°F) ให้กดปุ่ม TEMP/CAL button briefly while the meter is on and not in calibration mode.

การซ่อมบำรุง

• Electrode Hydration: Always keep the pH electrode moist. Store the meter with the protective cap filled with pH electrode storage solution or pH 4.0 buffer solution. Never allow the sensor to dry out, as this can permanently damage it.
• การทำความสะอาด: After each use, rinse the electrode thoroughly with distilled or deionized water to prevent contamination. For stubborn residues, a mild cleaning solution specifically designed for pH electrodes can be used, followed by thorough rinsing.
• การเปลี่ยนอิเล็กโทรด: The pH electrode (sensor bulb) is a consumable part and will eventually degrade over time, typically after 1-2 years of regular use, or if it dries out. If the meter fails to calibrate or provides unstable readings despite proper maintenance, the sensor may need replacement (HM Digital SP-P2). Replacement is a simple process of unscrewing the old sensor and screwing in the new one, followed by calibration.
• การเปลี่ยนแบตเตอรี่: When the low-battery indicator appears, replace the AAA batteries promptly to ensure accurate operation.

การแก้ไขปัญหา

ข้อมูลจำเพาะ

ข้อมูลการรับประกัน

The HM Digital PH-200 pH Meter comes with a limited warranty. Please refer to the warranty card included with your product or visit the official HM Digital website for detailed terms and conditions regarding coverage, duration, and claims process. This warranty typically covers manufacturing defects but may not cover damage due to improper use, lack of maintenance (e.g., dry sensor), or normal wear and tear of consumable parts like the electrode.

สนับสนุน

For technical assistance, troubleshooting beyond this manual, or inquiries regarding replacement parts and accessories, please contact HM Digital customer support:

• Webเว็บไซต์: www.hmdigital.com (กรุณาตรวจสอบจากเจ้าหน้าที่ web(โปรดดูเว็บไซต์สำหรับข้อมูลติดต่อและแหล่งข้อมูลสนับสนุนล่าสุด)
• อีเมล: อ้างถึง webเว็บไซต์สำหรับรวบรวมที่อยู่อีเมลสำหรับติดต่อฝ่ายสนับสนุน
• โทรศัพท์: อ้างถึง webเว็บไซต์สำหรับหมายเลขโทรศัพท์ฝ่ายบริการลูกค้า

When contacting support, please have your product model (PH-200) and purchase information readily available.