SATO 6433-00, Инструкция по эксплуатации, Страница: 9 / 16

7
a. Note that it is not possible to perform calibration using the oxalate standard solution (pH 1.68 at 25°C)
or borate standard solution (pH 9.18 at 25°C).
b. Calibration does not perform under the operation below. For details, refer to the [Trouble shooting]
●
pH value other than default value is displayed.
●
pH value does not increase even if the HOLD /
▲
key is pressed
●
[End] is displayed 10 seconds later after entering the calibration mode.
●
When calibration mode is forcibly ended and return to measurement mode
⑤
Press the HOLD /
▲
key to set the pH value to calibration value
(refer to the [Relation between pH and temperature])
⑥ After 10 sec. pH value is fixed and the value has been stored in the unit memory.
The calibration is ended and automatically return to measurement mode.
When the value has been stored (SAVE) in the unit memory
When the calibration is ended
NB* If the following steps have been done before [SA] is display, the calibration is ended without
saving the measured value
* Press CAL key to return the measurement mode
* Press PWR key to turn the power off
⑦
Wash the glass electrode with water (distilled, pure or tap water).
⑧ Perform calibration on pH 7 and pH 10 by using the same procedure as for pH 4
 The figure above shows the case when the pH 7 standard solution is 25.0ºC.