EZ 9901 3-u-1 tester kvaliteta vode - uputstvo za upotrebu

1. Uvod

The EZ 9901 is a versatile 3-in-1 digital water quality tester designed to accurately measure pH, Total Dissolved Solids (TDS), and Temperature. This compact and easy-to-use device is ideal for monitoring water quality in various applications, ensuring optimal conditions for health, growth, or process control.

Image: EZ 9901 3-in-1 Water Quality Tester with its digital display.

2. Sadržaj paketa

Molimo vas da pažljivo provjerite paket kako biste bili sigurni da su svi sastojci prisutni:

• 1 x EZ 9901 3-in-1 Water Quality Tester
• 3 x pH Buffer Powders (pH 4.01, pH 6.86, pH 9.18)
• 1 x Korisnički priručnik (ovaj dokument)

Image: The EZ 9901 tester shown with its packaging and included pH buffer powders.

3. Proizvod je gotovview

3.1. Komponente uređaja

Image: Detailed diagram of the EZ 9901 showing its main components and dimensions.

• Pretinac za baterije: Houses 3*LR44 button batteries.
• Prikaz: Digital LCD screen showing pH, TDS, and temperature readings.
• Dugme za uključivanje/isključivanje: Uključuje ili isključuje uređaj.
• HOLD/TEMP Button: Used to hold the current reading or switch between Celsius (°C) and Fahrenheit (°F) temperature units.
• MODE/CAL Button: Switches between pH, TDS, and temperature modes, and initiates calibration.
• Electrode Head: The sensing part of the device that is immersed in the liquid.

3.2. Načini prikaza

Slika: pramples of the EZ 9901's digital display in different modes (pH/°C, TDS/°C, pH/°F, TDS/°F).

The device can display readings in the following combinations:

• pH and Temperature in Celsius (PH/°C)
• TDS (ppm) and Temperature in Celsius (TDS/°C)
• pH and Temperature in Fahrenheit (PH/°F)
• TDS (ppm) and Temperature in Fahrenheit (TDS/°F)

4. Specifikacije

Image: Key specifications of the EZ 9901 water quality tester.

5. Podešavanje

5.1. Instalacija baterije

The EZ 9901 uses 3 LR44 button batteries. To install or replace batteries, open the battery compartment located at the top of the device. Ensure correct polarity when inserting new batteries.

5.2. Preparing pH Buffer Solutions

The included pH buffer powders (pH 4.01, pH 6.86, pH 9.18) are used for calibration. To prepare each solution:

1. Empty one packet of pH buffer powder into a clean, dry glass.
2. Add 250ml of distilled water to the glass.
3. Stir until the powder is completely dissolved.
4. Label each solution clearly to avoid confusion.

These solutions are crucial for accurate pH calibration.

6. Uputstvo za upotrebu

6.1. Uključivanje/isključivanje

• Pritisnite ON/OFF button to turn the tester on.
• Pritisnite ON/OFF button again to turn the tester off.

6.2. Prebacivanje režima

• Nakon uključivanja, pritisnite dugme MODE/CAL button to cycle through measurement modes: pH, TDS, and Temperature.

6.3. Switching Temperature Units

• While in any mode, press the HOLD/TEMP dugme za prebacivanje prikaza temperature između Celzijusa (°C) i Fahrenheita (°F).

6.4. Mjerenje

1. Ensure the tester is clean and calibrated (see Section 7 for calibration).
2. Skinite zaštitni poklopac sa elektrode.
3. Uronite elektrodu u sample solution, ensuring the liquid level is below the cap.
4. Gently stir the solution and wait for the reading to stabilize on the LCD display.
5. Record the measurement.
6. After use, rinse the electrode with distilled water and replace the protective cap.

7. pH kalibracija

Regular calibration ensures the accuracy of your pH measurements. It is recommended to calibrate the device before first use and periodically thereafter.

1. Prepare Buffer Solutions: Prepare 250ml of pH 6.86, pH 4.01, and pH 9.18 buffer solutions using the provided powders and distilled water (as described in Section 5.2).
2. Uključeno: Turn on the EZ 9901 tester by pressing the ON/OFF dugme.
3. Select pH Mode: Pritisnite MODE/CAL button until the display shows "pH" mode.
4. Calibrate with pH 6.86:
   • Rinse the electrode with distilled water and gently wipe it dry.
   • Uronite elektrodu u puferski rastvor pH 6.86.
   • Pritisnite i držite MODE/CAL button for approximately 6 seconds. The display will show "CAL" and then "6.86" will flash three times, indicating successful calibration for this point.
5. Calibrate with pH 4.01:
   • Rinse the electrode with distilled water and gently wipe it dry.
   • Uronite elektrodu u puferski rastvor pH 4.01.
   • Pritisnite i držite MODE/CAL button for approximately 6 seconds. The display will show "CAL" and then "4.01" will flash three times.
6. Calibrate with pH 9.18:
   • Rinse the electrode with distilled water and gently wipe it dry.
   • Uronite elektrodu u puferski rastvor pH 9.18.
   • Pritisnite i držite MODE/CAL button for approximately 6 seconds. The display will show "CAL" and then "9.18" will flash three times.
7. Završetak: After calibrating all three points, the device is ready for accurate pH measurements. Remember to clean the probe thoroughly after each calibration step and before storage.

8. Prijave

The EZ 9901 water quality tester is suitable for a wide range of applications:

Image: Visual representation of various applications for the water quality tester.

• Aquaculture: Monitoring water conditions for fish and aquatic life.
• Household Drinking Water: Ensuring the quality and safety of tap water.
• Bazeni: Maintaining proper pH and TDS levels for swimmer comfort and sanitation.
• akvarijumi: Checking water parameters for healthy aquatic environments.
• Prerada hrane: Quality control in beverage and food production.
• Laboratorije: General water quality testing for various experiments and analyses.
• hidroponika: Accurate pH/TDS measurement for nutrient solutions to support plant growth.

9. Održavanje

9.1. Cleaning the Electrode

After each use, especially when switching between different solutions, rinse the electrode thoroughly with distilled water. Gently wipe the electrode with a clean, soft cloth or tissue. Do not use abrasive materials or harsh chemicals, as this can damage the sensor.

9.2. Skladištenje

Always replace the protective cap on the electrode when not in use. For long-term storage, ensure the electrode is kept moist. If the electrode dries out, soak it in distilled water for a few hours before use or calibration. Store the device in a cool, dry place away from direct sunlight and extreme temperatures.

10. Otkrivanje problema

• Netačna očitavanja: If readings appear inconsistent or inaccurate, first ensure the electrode is clean. Then, perform a full pH calibration as described in Section 7. Low battery can also affect accuracy; replace batteries if needed.
• Nema prikaza/Slab prikaz: Check the batteries. Replace them if they are low or depleted. Ensure batteries are inserted with correct polarity.
• Spori odgovor: A slow response time can indicate a dry or contaminated electrode. Clean the electrode and soak it in distilled water for 30 minutes, then recalibrate.

11. Savjeti za korisnike

• Consistent Calibration: For critical applications, calibrate your pH meter regularly, ideally before each use or at least once a week.
• Proper Rinsing: Always rinse the electrode with distilled water between different samples to prevent cross-contamination and ensure accurate readings.
• Full Immersion: Ensure the electrode is fully immersed in the solution up to the immersion line (if present) or at least enough to cover the sensor tip for reliable measurements.
• Stabilna očitanja: Allow sufficient time for the readings to stabilize on the display before recording them. This usually takes a few seconds.

12. Garancija i podrška

The EZ 9901 Water Quality Tester comes with a standard manufacturer's warranty against defects in materials and workmanship. Please refer to the product packaging or contact your retailer for specific warranty terms and conditions.

For technical support, troubleshooting assistance, or warranty claims, please contact the customer service department of your place of purchase.