Horiba Scientific LAQUAtwin B-74 Series Manual page 40

Quick Operation Guide
This quick operation guide introduces the basic operations.
Refer to the respective chapters for further information.
Turn ON
①
Press the ON/OFF button over 2 seconds to turn ON the meter.
Calibration
②
① Pour the 2000 ppm standard solution. ② Close the light shield cover.
③ Press the CAL button over 2 seconds.
When and
④ Clean the sensor with water.
Perform calibration at least once a day
for accurate measurement.
light up, the calibration is completed.
⑤ Press the MEAS button to enter
the measurement mode.