Manual

Operation

106

4.3.3 AutoCal DIN

Use two or three different DIN buffer solutions for this proce-

dure in increasing or decreasing order:

Note

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

probe.

DIN buffer solution pH

A 1.68

C 4.01

D 6.87

F 9.18

1 Press the <CAL> key repeatedly until

Cd1

and the

AutoCal DIN

function display appear.

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 <run/enter> key.

flashes on the display.

The electrode voltage (mV) appears on the display.

As soon as a stable value is recognized,

Cd2

ap-

pears.