Hanna Instruments HI 9829 User Manual

Page 47

• The main display shows the actual reading, while the secondary level displays

the current temperature and the standard value.

• To change the standard value, press and the list of available

standard values is displayed: 0 µS/cm, 84 µS/cm, 1413 µS/cm, 5.00 mS/cm,
12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm.

• The third level displays the status message.
• Press to insert a custom value (temperature compensated value).

Insert the desired value using the keypad, then press .

• When the reading becomes stable, the stability timer will count down and

will appear. Press to save the calibration.

• After confirmation, the following messages are displayed: “Storing” and “Cali-

bration completed”.

• Press to return to the “Calibration” menu.
• Press ESC twice to return to main menu.
• Press to return to the measurement screen.
Absolute Conductivity
• Select “Absolute conductivity” from the “Conduc-

tivity calibration” menu.

• Use the keypad to enter the custom value with

the desired resolution. Press to con-
firm.

• Fill the calibration beaker with conductivity stan-

dard with known conductivity at the temperature of standardization.

• Pour additional standard into a second beaker to be used to rinse the sensor.
• Immerse the sensor into the rinse beaker and raise and lower the beaker to

ensure that the EC sensor channels are filled with fresh standard.

• Place the calibration beaker over the EC sensor and dislodge any trapped

bubbles. Screw the beaker into place.

• Wait for the reading to stabilize. The stability timer will count down and

firm> will appear.

• Note the temperature and adjust the conductivity value if needed.
• Press to save the calibration.
• After confirmation, the following messages are displayed: “Storing” and “Cali-

bration completed”.

• Press to return to the “Calibration” menu.
• Press ESC twice to return to the main menu.
• Press to return to the measurement screen.