Sper Scientific 860031 pH - mV Bench-Top Meter - Manual (Page 34)

34
Note…
You can adjust the conductivity reading ± 20% from the
measured value. If the detected value and the standard
value differ by more than ± 20%, clean or replace the
probe.
Example:
Standard: 10uS; Detected value: 19 uS
Adjustable range: ± 3.8 uS (19*20%)
However, under the above situation, the values already
differed over 20%.
Note…
When the calibration is stable, “READY” will appear on the
LCD. If “READY” does not appear, check that the
calibration solutions and input value (Step 9, page 33) are
correct and that the ready icon is enabled (page 25).
If the standard value is over the measuring range or 10%
less, the displayed value will be equal to the range limit or
10% of the range limit. Under this condition, go to the
parameter setting first to manually select a suitable range
(see page 46).
Example 1:
Standard: 22 uS; Detected value: 19 uS
Adjustable range: ± 3.8 uS (19*20%)
Although the values differ less than 20%, the 22 uS is still
over the range limit (because the maximum input value is
19.99 uS). In this instance, you must manually select the
range as 0~199.9 uS and then adjust the value to 22 uS.
CONDUCTIVITY PROBE CALIBRATION