Sper Scientific 850038 Pure Water Meter User Manual
Page 13
limit, the displayed
value will equal the range limit or
10% of range limit. Under this situation,
go to parameter settings first to
manually select a suitable
range. (P1.0, see page 23).
* The meter will automatically detect
the solution, If the standard value is
over the measuring limit or less than
10% of measuring
* Cell constant may degrade with time
and usage. Use this feature
as a reminder for changing to a new
probe.
NOTE:
* When the calibration is stable,
"Ready" will display. If not,
check that the calibration solutions
aand the input value (step 8) are
correct.
8. Press the UP/DOWN keys to change
the value on the primary display to
match the value to the standard
( normalization temp. is 25°C).
Adjust the conductivity reading
up to +20% from the detected
value. However, if the detected value
and standard value differ by more
than +20%, clean or replace the
probe.
Example:
Standard: 10uS; Detected value:19uS
Adjustable range: +3.8us (19*20%)
However, under above situation, the
values already differed over 20%.
12
E
xample 1:
Standard: 22uS; Detected value:19uS
Adjustable range: +3.8us (19*20%)
Although the values differ less than