3.
Then use
c
and
d
keys to
select either
OR
15
PPT
UNIT
PER
UNIT
to measure in Parts Per
Thousand as
PPT
or
Percentage as
PER
.
4.
Press
ENT
to confirm and
return to the main menu.
5.
Save the changes as
described on page 6.
-END OF PARAMETER SETUP-
STAGE 3:
CALIBRATING THE
PARAMETERS
Calibrating PH
1.
In the measurement mode
at
press the
CAL
key.
PH
2.
Place the tester in the buffer
solution. The bottom reading
will show the correct buffer
value.
3.
When the reading has
stabilized, for instance: 3.87 for
a 4.01 buffer, press
ENT
.
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