horiba F-74BW, Instruction Manual

Page: 58 / 132

Chapter 3 Basic Operation
3.3 Calibration
46 HORIBA
4.
Press the
▲
or
▼
key on the measurement screen
to light up ACT for CH1.
5.
Press the CAL key to enter the NIST calibration
screen.
6.
Wait for the instantaneous value to be stable and
press the CAL key.
The HOLD indicator blinks until the reading
stabilizes. When the reading stabilizes, the HOLD
indicator lights up and the reading is held.
The mark, which means that the pH7
calibration is completed, is displayed on the screen.
・
To stop calibration.
Press the CAL key while the HOLD indicator
blinks.
・
To redo calibration.
Press the CAL key again after the HOLD indicator
lights up.