Horiba Scientific LAQUA F-72 Installation guide

Remove the protective cap. Open the internal solution ller port.
pH 9 pH 9 pH 4 pH 4
pH7 pH7
January, 2017 © 2017 HORIBA Advanced Techno Co., Ltd.
Preparation
pH/ ION / COND METER F-74
CAL MEAS DATA
pH / ION / COND METER F-74
CAL MEAS DATA
CODE :GZ0000272694B
Quick Manual
pH Meter F-72,73,74 ②Connect the electrode to the pH meter
Electrode terminal
③Press the power button of the pH meter
①Prepare pH standard solutions
Temperature sensor terminal
☆Press the power button for 2 seconds.
※Wait for 10 seconds after connecting
the AC adapter before pressing
the power button.
④Remove the protective cap from the electrode,
and open the internal solution ller port

Calibration
Immerse the electrode in the pH7 standard solution
until the liquid junction partis fully submerged.
Immerse the electrode in the pH4 standard solution
until the liquid junction partis fully submerged.
Immerse the electrode in the pH9 standard solution
until the liquid junction partis fully submerged.
Conrm that
the instantaneous value
is stable, then
press button.
Conrm that
the instantaneous value
is stable, then
press button.
Conrm that the instantaneous value
is stable, then press button.
To second point calibration
with button.
To third point calibration
with button.
※In order to calibrate 3 points,
the number of calibration points
needs to set up beforehand.
When the indication changes from
the blinking state to the litstate,
calibration is complete.
When the indication changes from
the blinking state to the litstate,
calibration is complete.
When the indication changes from
the blinking state to the litstate,
measurement is complete.
To measurement
To measurement
or
Immerse the electrode in the sample
until the liquid junction part is fully submerged.
※The calibration method is the same
as first and second point calibration.
Measurement
①Enter the calibration mode
②Start the rst point calibration
③Start the second point calibration
④Start the third point calibration
①Enter the measurement mode
②Start the measurement
When the measurement sample is known to be acid, perform two-point calibration with pH7 and pH4.
When it is known to be alkaline, perform two-point calibration with pH7 and pH9.
When the sample pH is not known, perform three-point calibration with pH4, pH7 and pH9.