Xylem CG 842 - Manual (Page 29)

Operation
72
5 Thoroughly rinse the electrode with distilled water.
6 If necessary, set the temperature of the second buffer
solution by pressing < ▲ > < ▼ >.
7 Submerse the electrode in the second buffer solution.
8 Press the key.
AR flashes on the display.
The electrode voltage (mV) appears on the display.
As soon as a stable value is recognized, AR disap-
pears.
The sensor symbol shows the electrode evaluation
after the two-point calibration.
The value of the slope (mV/pH) appears on the dis-
play.
9 Press the key.
The value of the asymmetry (mV) appears on the dis-
play.
10 To return to the measuring mode: Press the
key.