Adjustment Calibration Using Sample Water <Ph - horiba TW-150 Instruction Manual

4.4.2 Adjustment calibration using sample water <pH>
MEASUREMENT screen
See "4.3 Displaying the Calibration Screen" (page 23).
Preparation

pH meter...1

Calibration procedure

1. Adjust the flow rate of the sample water to 80 mL/min using the valve.
2. Measure pH of the prepared sample water using a pH meter other than this
device's, and calculate the value.
3. Press the SAMPLE VALUE button ([x.xx]) on the pHCAL. screen.
The sample water calibration value input screen is displayed.
4. Enter the measured value of the sample water using the numerical key pad and
press [SET].
Input range: 2.00 to 12.00
Tip
[CLEAR]: Clears the whole value.
[BACK]: Deletes the rightmost number of the value.
The screen returns to the pHCAL. screen.
5. Press [SAMPLE].
A confirmation screen is displayed asking whether to start calibration.
[CAL.]
CALIBRATION screen
[x.xx]
[pH]
pHCAL. screen
4 CALIBRATION
29