PmoYoKo EZ-9901 Digital pH TDS Meter with ATC pH Tester User Manual

PmoYoKo EZ-9901 Digital pH TDS Meter with ATC pH Tester

Specifications:

• Model: EZ-9901
• Features:
  • Hold reading function
  • Waterproof
  • Double probe (not replaceable)
• Backlit optional LCD display

Product Usage Instructions:

Before Use:
In the following cases, the pH meter must be re-calibrated:

1. Not used for a long time.
2. The reading is different from what you expected.
3. The measurement accuracy requirements are relatively high.
4. After cleaning and moisturizing.
5. After replacing the battery.

Note: Do not test corrosive, strongly acidic, or strongly alkaline solutions.

Tips: Soak the TDS meter digital water tester in clear water for 5 minutes before calibration to ensure accurate readings.

PH Measurement:

1. Turn on the tester.
2. When the display shows pH, put the tester in the liquid to measure.
3. Note: The liquid should not exceed the water level line.
4. Let the pH tester stand for 30-60 seconds. When the reading is stable, press HOLD button to fix the reading and then take it out.

PPM Measurement:

1. Turn on the tester.
2. Press the MODE key to switch to ppm.
3. Put the tester in the liquid to measure.
4. Note: The liquid should not exceed the water level line.
5. Let the pH tester stand for 30-60 seconds. When the reading is stable, press HOLD button to fix the reading and then take it out.

Temperature Measurement:

1. Turn on the tester.
2. Put the tester in the liquid to measure.
3. Note: The liquid should not exceed the water level line.

Usage Related Issues:

PH Tester Usage Related Issues:

• When turning on the PH meter in the air, value jumps irregularly, which is normal.
• When measuring water, stir gently to remove bubbles attached to the probe for stable readings.
• If white crystalline salt appears around the electrode, immerse it in water for cleaning.
• If calibration error occurs, long press the HOLD/TEMP & MODE/CAL Button to restore factory settings and calibrate.

Calibration PH Steps:

User Manual
Model: EZ-9901

Quick Guide

Features

Backlit optional LCD display| Hold reading function
Waterproof| Double probe (not replaceable)
Automatic Temperature| Selectable units for °C and °F

Before Use

In the following cases, the pH meter must be re-calibrated:

1. Not used for a Iong time.
2. The reading is different from what you expected.
3. The measurement accuracy requirements are relatively high.
4. After cleaning and moisturizing.
5. After replacing the battery.

Note : Please don’t test these three solution: Corrosive, Strongly acidic, Strongly alkaline.

Tips: For better using experience, we recommend to soak the tds meter digital water tester in clear water for 5 minutes before starting calibration after receive the product or long time no use. Because it may cause inaccurate readings if customer immediate use for the first time or long time no use.

PH Measurement

1. Turn on the tester.

2. When the display show to “pH”.

3. Put the tester in the liquid to measure. Note:
   The liquid should not exceed the water level line.

4. Let the pH tester stand for 30-60 seconds. When the reading is stable, press “HOLD” button to fix the reading and then take it out.

PPM Measurement

1. Turn on the tester.

2. Press the “MODE” key to switch to “ppm”.

3. Put the tester in the liquid to measure. Note:
   The liquid should not exceed the water level line.

4. Let the pH tester stand for 30-60 seconds. When the reading is stable, press “HOLD” button to fix the reading and then take it out.

Temperature Measurement

1. Turn on the tester.
2. Long press the “TEMP” key to switch the unit °F/°C.
3. Put the tester in the liquid to measure.

Usage Related Issues

PH tester usage related issues:

• When the PH meter is turned on in the air, the value jumps irregularly, which is a normal phenomenon. The value in the air cannot be used as a reference.
• When measuring the water with the PH meter, it needs to be stirred gently (to remove the bubbles attached to the probe), and it takes a period of stabilization. It is normal for the value to jump up or down during the test. Please do not just insert it and read it immediately.
• White crystalline salt appears around the electrode of the PH meter, which is a normal phenomenon of the PH electrode, and the electrode can be removed by immersing it in water and cleaning.
• The PH meter electrode is made of glass, which is fragile. Please do not drop it or touch it with your hands. Do not test the water above 150℉(60℃). Do not test the strong acid and alkali, which will cause the electrode glass to burst.
• When you meet calibration error-like you would like to calibrate pH 6.86 but get 4.01 value.
• Please long press the “HOLD/TEMP” & “MODE/CAL” Button for 3-5 seconds to restore factory Settings, and then use the powder pack for calibration.
• It took a long time to calibrate or after calibrating, the reading was tested but the reading came out “0” value?
• Firstly, please check whether the glass probe was broken, If not, that you met calibration error. For this issue, please long press the “HOLD/TEMP” & “MODE/CAL” Button for 3-5 seconds to restore factory Settings, and then use the powder pack for calibration.

Calibration PH Steps 1

Tip: pH meter has been calibrated, so you do not need to re-calibrate after receiving it.
Before start: Clean the electrode with distilled water and dry it.

1. Open the pH 4.01 buffer powder
2. Add it into the 250ML distilled water
3. Stir until powder dissolves
4. Press “ON/OFF” button
5. Press “MODE” button
6. pH mode
7. Press and hold the MODE/CAL button for 6 seconds
8. pH 4.01 flash 3 times

Finish pH 4.01 point calibration

Calibration PH Steps 2

Before start : Clean the electrode with distilled water and dry it.

1. Open the pH 6.86 buffer powder
2. Add it into the 250ML distilled water
3. Stir until powder dissolves
4. Press “ON/OFF” button
5. Press “MODE” button
6. pH mode
7. Press and hold the MODE/CAL button for 6 seconds
8. pH 6.68 flash 3 times

Finish pH 6.86 point calibration

Calibration PH Steps 3
Before start : Clean the electrode with distilled water and dry it.

1. Open the pH 9.18 buffer powder
2. Add it into the 250ML distilled water
3. Stir until powder dissolves
4. Press “ON/OFF” button
5. Press “MODE” button
6. pH mode
7. Press and hold the MODE/CAL button for 6 seconds
8. pH 4.00 flash 3 times

Finish pH 9.18 point calibration

Calibration PPM Steps

• Press “ON/OFF” button
• Press “MODE” button
• ppm mode
• Press and hold the MODE/CAL button for 6 seconds
• pH 1413 flash 3 times

Disclaimer

1. After use, please rinse the electrode with distilled water and wipe the water droplets to keep the pH pen dry. The seller does not take any responsibility for any damage arising from failure to comply with this product guide.
2. Do not disassemble the instrument without authorization to avoid damage. Do not be affected by moisture and make the circuit board water, keep away from the fire source and handle with care.The seller does not take any responsibility for any damage arising from failure to comply with this product guide.
3. The probe of the pH pen is one of the most important parts of the meter. If the probe is contaminated (dirty), it will affect the accuracy of the displayed readings, so the probe should be protected, cleaned after use, and the protective cap covered.The seller does not take any responsibility for any damage arising from failure to comply with this product guide.
4. During testing, keep the pH meter away from moisture and water. The seller does not take any responsibility for any damage arising from failure to comply with this product guide.
5. During testing, gently shake pH meter for several times to ensure that no bubbles are formed near the electrode.The seller does not take any responsibility for any damage arising from failure to comply with this product guide.
6. The water level of the pH meter should not exceed the position of the immersion line. The seller does not take any responsibility for any damage arising from failure to comply with this product guide.
7. If you have any problem occurs during pH calibration, please reset the pH meter. Please use the product according to the instructions,the seller does not take any responsibility for any damage arising from failure to comply with this product guide.

Parameter

Resolution: 0.01pH-14.00pH
Accuracy: ±0.05pH
TDS| Range: 1-9990ppm
Resolution: 1ppm
ppm: 0.1ppt
Temperature| ATC: 32-140℉(0-60℃）
Calibration| pH: Automatic Identification IF the meter can’t identify the, please contact supplier.
Waterproof level| IP65
Battery| 31.5V(LR44)
Screen Size| 3324mm
Product Size| 7.21.51.5in
Net weight| 90g(3.2oz)
Display| Backlight LCD Digital Display
Automatic Shut-off| 5 minutes
Attention| Clean the electrode after using

Battery

1. When the meter cannot be turned on or the display fades, please open the battery box and replace the battery (pay attention to the polarity), and then recalibrate the meter.
2. If you redeive the product is defective, it is possible that the battery has lost power during long-term transportation, you can replace the battery. You can also contact our after-sales feam immediately, we will reply to you within 24 hours.

Maintenance

1. Store the pH meter in a cool and dry place to prevent damage caused by moisture.
2. Do not touch the electrode with hard tools to fingers. Always put on the protective cap to prevent the electrode from drying out and damaging.
3. White crystalline salt appears around the electrode of the pH meter, which is a normal phenomenon of the pH electrode, and this can be removed by immersing it in water and cleaning.

Warranty

We provide 12 months warranty. If you have any questions while using the product, please contact us and we will get back to you within 24 hours.
Please contact our after-sales team:

Website and E-mail

www.PmoYoKo.net
E-mail: pmoyoko@outlook.com

References

• PmoYoKo Store

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