HYGGER HG239 (01) PDF Document

The main components of the HYGGER HG239 are:

• Battery Case

• Display Screen

• ON/OFF button

• MODE/CAL button

• HOLD/TEMP button

• Max Immersion Line

• Protective Cap

The display screen of the HYGGER HG239 shows the following:

• HOLD: Indicates that the current reading is locked.

• Battery Indicator: Shows the current battery level.

• Testing Value: The main numerical reading of the measurement.

• MODE: TDS/EC/PH: Shows the current measurement mode (pH, ppm, µs/cm).

• TEMP: The numerical reading for the temperature, which can be displayed in °C or °F.

• ON/OFF: This is the power button to turn the meter on and off.

• HOLD/TEMP: This button is used to hold the current reading and to shift the temperature display between Celsius and Fahrenheit.

• MODE/CAL: This button is used for calibration and to shift between different measurement modes (TDS/EC/PH).

1. Remove the protective cap.

2. Turn the meter on by pressing the “ON/OFF” button.

3. Immerse the meter electrode in the test solution. The immersion depth cannot be over the immersion line.

4. Stir gently and wait until the reading stabilizes.

5. If you need to test the temperature, long press the “HOLD/TEMP” button to get the temperature reading.

6. After finishing, clean the electrode with distilled water, then turn the meter off by pressing the “ON/OFF” button.

7. Replace the protective cap after use.

To hold the current measurement, briefly press the “HOLD/TEMP” button. The “HOLD” icon will appear on the screen, and the reading will be locked.

To convert the temperature unit between Celsius (°C) and Fahrenheit (°F), press and hold the “HOLD/TEMP” button for 3 seconds.

To calibrate the TDS/EC function, you can use a one-point or two-point calibration method with standard solutions.

For 718 µS/cm solution (One-Point Calibration):

1. Turn on the meter and press the “MODE/CAL” button to enter EC mode.

2. Put the electrode into the 718 µS/cm EC standard solution.

3. Press and hold the “MODE/CAL” button for 3 seconds. The screen will display “CAL”.

4. The screen will then flash “718” three times.

5. The calibration is complete, and the screen will show the final reading.

For 1413 µS/cm solution (Two-Point Calibration):

1. First, complete the calibration with the 718 µS/cm solution as described above.

2. Put the electrode into the 1413 µS/cm EC standard solution.

3. Press and hold the “MODE/CAL” button for 3 seconds. The screen will display “CAL”.

4. The screen will flash “718” three times, then briefly press “MODE/CAL” again.

5. The screen will then flash “1413” three times.

6. The two-point calibration is complete.

You can perform a one, two, or three-point pH calibration using standard buffer solutions (4.00, 6.86, 9.18).

General Calibration Steps:

1. Turn on the meter and ensure it is in pH mode.

2. Put the electrode into the desired pH standard solution (e.g., 4.00 pH).

3. Press and hold the “MODE/CAL” button for 3 seconds.

4. The screen will flash the corresponding pH value (e.g., “4.00”) three times.

5. The calibration for that point is complete.

Repeat these steps for other pH standard solutions (6.86 and 9.18) for a two or three-point calibration.

Take one package of pH standard powder (pH 4.00, 9.18, or 6.86) and completely dissolve it in 250mL of pure water.

1. When the low battery indicator on the screen starts flashing, it is time to charge the meter.

2. Open the battery case at the top of the meter.

3. Connect a type-c cable to the charging interface.

4. Once charging is complete, disconnect the cable and screw the bolts of the battery case back on.

The recommended charging value is 5V/1A.

1. TDS/EC/PH/SALT/TEMP hygger WATER QUALITY METER

2. PH buffer powders

3. Instructions in five languages

Before use, the probe should be soaked in water for two minutes. This activates the probe before use or calibration.

Recalibration is required in the following conditions:

(1) When the meter is used again after a long period of non-use.

(2) When the frequency of use is extremely high.

(3) After long-pressing the “CAL” button, if the electrode is exposed to the air for a long time.

If you calibrate the meter in the air or in the wrong calibration solution, “ERR” will flash on the screen.

When the meter is turned on and the electrode is exposed to the air, it is normal for the value to fluctuate.

The HYGGER HG239 has a modular design. If the probe is damaged, you can buy a replacement probe. Please remember to recalibrate the device after replacing the probe.

Always replace the protective cap after using the digital meter to keep the electrode from drying out due to prolonged exposure to air. A dry electrode can lead to slow or unstable readings.

If the electrode is dry, moisten it in distilled water for a few hours.

When data is abnormal, please hold down both the HOLD and MODE buttons for 3 seconds to reset the device.