One-Point Calibration In High Concentration; One-Point Calibration In Low Concentration - Horiba Scientific LAQUAtwin B-74 Series Manual

5.2

One-point calibration in high concentration

1.
Set "One-point calibration in high concentration" (refer to page
21).
2.
Open the light shield cover and put some drops
of the high-concentration standard solution on
the flat sensor to cover the entire flat sensor.
Washing the sensor with the standard solution
beforehand may provide more accurate calibration.
3.
Close the light shield cover and press the CAL
switch for over 2 seconds.
and
displayed.
After the calibration is completed,
stop blinking and light steadily.
4.
Clean the sensor with tap water and
remove moisture.
5.
Press the MEAS switch for 0.5 seconds to
enter the measurement mode and prepare
for measurement.
5.3

One-point calibration in low concentration

1.
Set "One-point calibration in low concentration" (refer to page
21).
2.
Open the light shield cover and put some drops
of the low-concentration standard solution on
the flat sensor to cover the entire flat sensor.
Washing the sensor with the standard solution
beforehand may provide more accurate calibration.
3.
Close the light shield cover and press the CAL
switch for over 2 seconds.
and
displayed.
After the calibration is completed,
stop blinking and light steadily.
4.
Clean the sensor with tap water and
remove moisture.
5.
Press the MEAS switch for 0.5 seconds to
enter the measurement mode and prepare
for measurement.
blink and the calibration value is
blink and the calibration value is
and
and
11
Light shield
cover
Light shield
cover