Xylem CG 843P - Manual (Page 55)

Operation
127
20 Set the current time by pressing < ▲ > < ▼ >.
21 Confirm with <run/enter>.
The instrument changes automatically to the pH
measuring mode.
1 Press and hold down the <run/enter> key.
2 Press the <pH> key.
The measured values appear with the higher resolu-
tion on the display, e.g. pH = 4.012.
3 Press the <run/enter> key and <pH> key again.
The measured values with the lower resolution ap-
pear on the display, e.g. pH = 4.01.
Adjusting the reso-
lution