2 autocal tec – Xylem CG 843 User Manual

Page 29

Operation

4.3.2 AutoCal TEC

Use any two or three of the Technical buffer solutions for this
procedure in increasing or decreasing order.

Note
Steps 2, 6 and 13 are not required if you use a temperature
probe.

1 Press the key repeatedly until

Ct1

and the

AutoCal TEC

function display appears.

2 If necessary, set the temperature of the buffer solu-

tion by pressing <

▲

> <

▼

3 Submerse the pH electrode in the first buffer solution

4 Press the key.

AR flashes on the display.
The electrode voltage (mV) appears on the display.
As soon as a stable value is recognized,

Ct2

ap-

pears.

5 Thoroughly rinse the electrode with distilled water.