Manual d'instruccions

1. Introducció

Thank you for choosing the Ohaus PH Meter a-AB33PH-B. This digital pH meter is designed for accurate and reliable pH measurements in various liquid samples. Its high-precision electrode, wide pH range, and automatic temperature compensation (ATC) make it suitable for a broad array of applications, including water quality testing, aquariums, pools, and laboratory use. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your device.

Figure 1: The Ohaus PH Meter a-AB33PH-B, showing the main unit with LCD display and the electrode stand. This image illustrates the compact design and the separate components for ease of use and measurement stability.

2. Informació de seguretat

Please read all safety warnings and instructions carefully before operating the device to ensure safe and proper use. Keep this manual for future reference.

• Do not immerse the main unit in water or other liquids. The device is not waterproof.
• Handle the pH electrode with care. It is fragile and contains a glass bulb.
• Keep the device away from strong magnetic fields, high temperatures, and direct sunlight.
• Use only the specified power adapter (if applicable) or batteries.
• No intenteu desmuntar ni reparar el dispositiu vosaltres mateixos. Encarregueu tot el manteniment a personal qualificat.
• Dispose of batteries and electrodes according to local regulations.

3. Contingut del paquet

Verifiqueu que tots els elements siguin presents i no estiguin danyats en desempaquetar-los:

• Ohaus PH Meter a-AB33PH-B Main Unit
• Elèctrode de pH
• Electrode Stand (if included with model)
• Adaptador d'alimentació (si escau)
• Buffer Solutions (pH 4.01, 7.00, 10.01) for calibration
• Manual d'instruccions

4. Producte acabatview

Familiarize yourself with the main components of your PH Meter:

1. Pantalla LCD: Shows pH readings, temperature, calibration status, and other indicators.
2. Botons de control: For power, calibration, mode selection, and data hold.
3. Electrode Connector: Port for connecting the pH electrode.
4. Sensor de temperatura: Integrated or external sensor for Automatic Temperature Compensation (ATC).
5. Elèctrode de pH: The sensing probe that measures the pH of the solution.
6. Suport d'elèctrodes: Provides stable support for the electrode during measurements and storage.

5. Configuració

Seguiu aquests passos per a la configuració inicial:

1. Desembalar: Traieu amb cura tots els components de l'embalatge.
2. Assemble Electrode Stand: If your model includes a separate stand, assemble it according to the diagram provided in the quick start guide.
3. Connectar l'elèctrode: Gently plug the pH electrode into the designated connector port on the main unit. Ensure a secure connection.
4. Encès: Connect the power adapter to the device and a suitable power outlet, or insert batteries if battery-powered. Press the power button to turn on the meter.
5. Esbandida inicial: Before first use, rinse the electrode tip with distilled or deionized water. Do not wipe the glass bulb; gently blot with a lint-free tissue.

6. Instruccions de funcionament

6.1. Calibració

Calibration is crucial for accurate pH measurements. Calibrate your meter regularly, especially before critical measurements, after electrode replacement, or if readings seem inaccurate.

1. Prepare fresh buffer solutions (e.g., pH 4.01, 7.00, 10.01). Ensure they are at room temperature.
2. Esbandiu l'elèctrode amb aigua destil·lada i assequeu-lo suaument.
3. Immerse the electrode into the first buffer solution (typically pH 7.00).
4. Press the "CAL" button (or equivalent) on your meter. The display will indicate calibration mode.
5. Wait for the reading to stabilize. The meter will automatically recognize the buffer and confirm calibration.
6. Rinse the electrode again with distilled water.
7. Repeat the process for the second buffer (e.g., pH 4.01 or 10.01, depending on your expected sample range). For best accuracy, use a third buffer if your meter supports 3-point calibration.
8. Un cop finalitzada la calibració, el mesurador tornarà al mode de mesura.

6.2. Prendre una mesura

1. Assegureu-vos que el mesurador estigui calibrat.
2. Esbandiu l'elèctrode amb aigua destil·lada i assequeu-lo suaument.
3. Submergiu l'elèctrode a la sample solution. Ensure the electrode tip is fully submerged.
4. Gently stir the solution to ensure homogeneity and remove air bubbles.
5. Wait for the reading on the LCD display to stabilize. The meter will typically show a stable icon or hold the reading.
6. Registra les lectures de pH i temperatura.
7. After measurement, rinse the electrode thoroughly with distilled water and store it properly (see Maintenance section).

7. Manteniment

7.1. Cura i emmagatzematge d'elèctrodes

• Always keep the electrode tip moist. Store it in a storage solution (e.g., 3M KCl solution) or pH 7 buffer solution when not in use. Never store in distilled water, as this will deplete the electrode's internal electrolyte.
• If the electrode cap contains a sponge, ensure it is kept moist with storage solution.
• Rinse the electrode with distilled water before and after each use.

7.2. Neteja

• Elèctrode: If the electrode becomes dirty or slow to respond, clean it using a mild cleaning solution specifically designed for pH electrodes. Follow the cleaning solution manufacturer's instructions.
• Unitat principal: Netegeu la unitat principal amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.

7.3. Substitució de la bateria (si escau)

If your meter uses batteries, replace them when the low battery indicator appears on the display. Refer to the battery compartment for correct polarity and battery type.

8. Solució De Problemes

9. Especificacions

10. Garantia i Suport

Ohaus products are manufactured to high quality standards and are backed by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Ohaus weblloc.

For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact Ohaus customer service. Contact information can typically be found on the Ohaus weblloc web o a l'embalatge del producte.

• Assistència en línia: Visit the official Ohaus website for FAQs, product documentation, and support resources.
• Atenció al client: Refer to your product's packaging or the Ohaus weblloc web per a números de contacte regionals i adreces de correu electrònic.