![PEWA HI 110 Скачать руководство пользователя страница 12](http://html1.mh-extra.com/html/pewa/hi-110/hi-110_instruction-manual_1534052012.webp)
12
THREE- (HI 110, HI 111) / FIVE-POINT (HI 112,
HI 113) CALIBRATION
Immerse the pH electrode and the temperature probe
approximately 4 cm (1½) into a buffer solution and
stir gently. The temperature probe should be close to
the pH electrode.
Press
CAL
. The CAL and
BUF
tags will appear
and the 7.01 buffer will be displayed on the
secondary LCD.
If necessary, press the
ARROW
keys to select a different buffer value.
The tag will blink on the LCD until the reading is
stable.
When the reading is stable and close to the selected buffer, the
READY tag will be displayed and the CFM tag will blink.
Press
CFM
to confirm calibration.
The calibrated value will be displayed on the primary LCD
and the second expected buffer value on the secondary
LCD.
After the first calibration point is confirmed, immerse the pH electrode and the
temperature probe approximately 4 cm (1½) into the second buffer solution
and stir gently. The temperature probe should be close to the pH electrode.
If necessary, press the
ARROW
keys to select a different buffer value.
The tag will blink on the LCD until the reading is
stable.
When the reading is stable and close to the selected buffer, the
READY tag will be displayed and the CFM tag will blink.
Press
CFM
to confirm calibration.
The calibrated value is then displayed on the primary
LCD and and the third expected buffer value on the
secondary LCD.
After the second calibration point is confirmed, immerse the pH electrode
and the temperature probe approximately 4 cm (1½) into the next
buffer solution and stir gently. The temperature probe should be close to
the pH electrode.
BUFFER pH
2
BUF
pH
CAL
BUFFER pH
1
BUF
pH
CAL