Інструкція з експлуатації електронного рН-метра Lutron PH-222

1. Вступ

This manual provides comprehensive instructions for the proper setup, operation, calibration, and maintenance of the Lutron PH-222 Electronic Pen pH Meter. The PH-222 is a portable, high-precision instrument designed for accurate pH measurements in various applications, including water quality testing, laboratory analysis, and industrial processes. Adherence to these instructions will ensure optimal performance and longevity of the device.

2. Інформація про безпеку

Please read and understand all safety instructions before operating the Lutron PH-222 pH Meter. Failure to follow these guidelines may result in injury or damage to the instrument.

• Always handle the pH electrode with care. The glass bulb is fragile.
• Do not ingest pH buffer solutions. In case of accidental ingestion, seek medical attention immediately.
• Тримайте пристрій подалі від екстремальних температур, прямих сонячних променів та високої вологості.
• Ensure the battery compartment is properly sealed to maintain the IP-67 waterproof rating.
• Утилізуйте використані батареї відповідно до місцевих правил.
• Do not attempt to disassemble or modify the meter, as this will void the warranty and may cause damage.

3. Вміст упаковки

Після розпакування переконайтеся, що всі перелічені нижче предмети присутні та не пошкоджені:

• Lutron PH-222 Electronic Pen pH Meter
• Інструкція з експлуатації
• Сертифікат калібрування
• pH 4.00 Buffer Solution (small bottle)
• pH 7.00 Buffer Solution (small bottle)

малюнок 3.1: Contents of the Lutron PH-222 package. This image displays the PH-222 pen pH meter, its operation manual, a calibration certificate, and two small bottles of pH buffer solutions (pH 4.00 and pH 7.00).

4. Особливості продукту

The Lutron PH-222 pH Meter incorporates several features designed for user convenience and accurate measurement:

• Easy to Change the pH Electrode: Facilitates quick replacement of the sensing electrode.
• High Input Impedance: Ensures minimal current draw from the pH electrode, leading to stable and accurate readings.
• Data Hold Function: Allows freezing of the displayed value for convenient recording.
• Автоматичне вимкнення: економить час роботи акумулятора, автоматично вимикаючись після певного періоду бездіяльності.
• 100 Point Data Logger with Recall: Stores up to 100 measurement points for later review.
• IP-67 Waterproof Rating: Provides protection against dust and immersion in water up to 1 meter for 30 minutes.

малюнок 4.1: Фронт view of the Lutron PH-222 Electronic Pen pH Meter, showing the display and control buttons (POWER, HOLD, REC).

5. Налаштування

5.1 Встановлення батареї

The Lutron PH-222 requires batteries for operation (not included in the package). To install or replace batteries:

1. Twist the top cap of the meter counter-clockwise to open the battery compartment.
2. Вставте дві батарейки типу AAA 1.5 В, дотримуючись правильної полярності (+/-), як зазначено всередині відсіку.
3. Securely close the battery compartment by twisting the cap clockwise until it is tight to maintain the waterproof seal.

5.2 Electrode Preparation

1. Carefully remove the protective cap from the bottom of the pH electrode. The cap typically contains a small amount of storage solution to keep the electrode moist.
2. Rinse the electrode tip with distilled or deionized water to remove any residual storage solution. Gently blot dry with a lint-free tissue. Do not rub the glass bulb.

6. Операція

6.1 Увімкнення/вимкнення живлення

Натисніть ПОТУЖНІСТЬ кнопку, щоб увімкнути або вимкнути глюкометр.

6.2 Вимірювання

1. Переконайтеся, що лічильник відкалібровано (див. розділ 7).
2. Immerse the pH electrode tip into the sample solution, ensuring the glass bulb is fully submerged.
3. Gently stir the solution to ensure homogeneity and allow the reading to stabilize. The display will show the pH value.
4. Запишіть показник стабільного pH.
5. Після вимірювання промийте електрод дистильованою водою та закрийте захисний ковпачок.

6.3 Функція утримання даних

To freeze the current reading on the display, press the ТРИМАТИ button. Press it again to release the hold and return to live measurement.

6.4 Data Logging and Recall

The PH-222 can store up to 100 measurement points. Refer to the detailed operation manual included in the package for specific instructions on how to use the REC button for data logging and recall functions.

7. Калібрування

Regular calibration is essential for accurate pH measurements. The Lutron PH-222 supports multi-point calibration using standard buffer solutions. It is recommended to calibrate the meter before each use or if readings appear inaccurate.

7.1 Calibration Procedure (Two-Point)

The PH-222 typically uses a two-point calibration with pH 7.00 and pH 4.00 (or pH 10.00) buffer solutions.

1. Prepare fresh pH 7.00 and pH 4.00 buffer solutions. Ensure they are at the same temperature as your sampлес.
2. Turn on the meter and rinse the electrode with distilled water.
3. Занурте електрод у буферний розчин з pH 7.00.
4. Натисніть і утримуйте CAL button (often integrated with the REC button, refer to the device's specific button functions) until the calibration mode is activated. The display will typically show 'CAL' or a flashing pH value.
5. Wait for the reading to stabilize. The meter will automatically recognize the buffer and complete the calibration for pH 7.00.
6. Промийте електрод дистильованою водою.
7. Занурте електрод у буферний розчин з pH 4.00.
8. Repeat the calibration process. The meter will automatically recognize the buffer and complete the calibration for pH 4.00.
9. Once calibration is complete, the meter will return to measurement mode.

малюнок 7.1: Standard pH 4.00 and pH 7.00 buffer solutions used for calibrating the pH meter.

8. Технічне обслуговування

8.1 Догляд за електродами та їх зберігання

• Always keep the electrode tip moist. Never allow the electrode to dry out. Store it in its protective cap containing a small amount of storage solution (or 3M KCl solution).
• Rinse the electrode with distilled water after each use to prevent contamination.
• If the electrode becomes dirty or fouled, clean it gently according to the instructions in the full operation manual.
• Replace the electrode when it no longer calibrates correctly or provides stable readings.

8.2 Генеральне прибирання

Wipe the meter body with a damp тканина. Не використовуйте абразивні засоби чи розчинники.

8.3 Заміна батареї

Replace batteries when the low battery indicator appears on the display or if the meter fails to power on. Refer to Section 5.1 for battery installation instructions.

9. Вирішення проблем

10. Технічні характеристики

11. Гарантія та підтримка

For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or contact your authorized Lutron dealer or the manufacturer directly. Ensure you have your product model number (PH-222) and purchase details available when seeking support.