wtw inoLab pH/ION Level 2 Operating Manual page 24

Operation
108
6 Thoroughly rinse the electrode with distilled water.
7 If necessary, set the temperature of the second buffer
solution by pressing
depressed.
8 Submerse the electrode in the second buffer solution.
g
9 Press the
AR flashes on the display.
The electrode voltage (mV) appears on the display.
As soon as a stable value is recognized, AR
disappears.
The sensor symbol shows the electrode evaluation
after the two-point calibration.
The value of the slope (mV/pH) appears on the
display.
g
10 Press the
The value of the asymmetry (mV) appears on the
display.
11 To return to the measuring mode: Press the
u d
while keeping the
key.
key.
g
key
m
key.