TB400-en-GB_V1.3 8/16
6
Calibration
Clear
Procedure
1.
The
calibration
clear
procedure
will
clear
all
calibration
values
and
return
the
meter
to
default
settings.
2.
Power
ON
the
meter
with
the
cover
closed
but
no
testing
bottle
in
the
chamber.
3.
Press
the
"CAL"
button
continuously
until
the
LCD
displays
"CAL"
4.
Wait
one
second;
the
LCD
will
then
display:
5.
Momentarily
press
the
"HOLD"
button.
The
LCD
will
display:
6.
Momentarily
press
the
"HOLD"
button
again.
The
LCD
will
display:
7.
Momentarily
Press
the
"CAL"
button.
The
LCD
will
flash
"CAL"
for
10
seconds:
8.
The
calibration
data
clear
is
complete.
The
meter
will
return
to
normal
operating
mode.
CAL
ntu
0.00
CAL
ntu
CLr
CAL
ntu
CAL
CLr
100
CAL
ntu
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