ENGLISH
85
ON/OFF
HOLD + ON/OFF
HOLD
ON/OFF key. Press this key
repeatedly to switch the instru-
ment on or off.
The instrument has a cut-out
system (Auto Power Off) which
switches off automatically after
about 8 minutes.
HOLD key. If this key is pressed
and held down together with the
ON/OFF key while switching on,
for the duration of the switching-
on routine, the self cut-out func-
tion (Auto Power Off) is disactiva-
ted.
The battery symbol flashes at a
frequency of 1 Hz.
The instrument can be switched
off only by pressing the ON/OFF
key.
When this key is pressed during
normal operation the value shown
on the display is frozen and the
HOLD symbol lights up; updating
of the internal data continues.
When the key is pressed for the
second time the instrument
returns to normal operation and
the HOLD symbol goes off.
All the symbols are lit for a few
seconds after pressing the
ON/OFF key.
Complete display.
Afterwards the message CAL is
shown at the top of the display
and, at the bottom, a value
between 500 and 1500 which indi-
cates the electrode calibration
coefficient (in normal conditions
this value is 1000).
The
H
symbol flashes to indicate
that Auto Power Off is disabled.
KEY
SIMBOLS LIT BESIDES
THE NUMBERS
FUNCTION
DESCRIPTION
FUNCTION OF THE SYMBOLS ON THE KEYBOARD
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