User Guide

11
To switch the instruments
on, press and hold the
ON/OFF key.
The meter has a built-in pro-
tection against electromag-
netic interference and the delayed response
of the keys assures that the commands are
not mistaken for stray signals.
Before proceeding with pH measurements fol-
low the calibration procedure (see page 19).
SETTING DATE AND TIME
Press the ALT and the TIME keys simulta-
neously. The display will show the date set-
ting. At the bottom of the display the year will
be blinking.
Use the UP or the DOWN arrow keys to
select the year.
When the correct year is selected, press the
TIME key once. The month will start blinking.
ON/OFF
ALT
DATE
CAL
CFM
DATE
TIME
TIME