Hanna Instruments Edge HI 2020 - Page 35

Operational Guide
35
EC Meter
Conguration
Option Description Choices Default Basic mode
EC Range If AUTO is used,
edge® will
automatically
nd the correct
conductivity
range and
unit. If a xed
value is used,
measurements
made outside
the ranges are
considered
Out of Range,
but units will
remain xed
throughout the
measurement.
AUTO,
29.99 μS/cm,
299.9 μS/cm,
2999 μS/cm,
29.99 mS/cm,
200.0 mS/cm,
500.0 mS/cm
AUTO Not available but
measurement
autoranges as
needed.
TDS Range If AUTO is used,
edge® will
automatically
nd the
correct TDS
measurement
range and
units. If a xed
value is used,
measurements
made outside
the ranges are
considered
Out of Range,
but units will
remain xed
throughout the
measurement.
AUTO,
14.99 mg/L,
149.9 mg/L,
1499 mg/L,
14.99 g/L,
100.0 g/L,
400 g/L
AUTO Not available but
measurement
autoranges as
needed.
TDS Unit Select units of
measurement
for TDS
measurement.
mg/L or ppm ppm Available to
select.
EC Salinity Scale Three
measurement
scales are
available
for salinity
measurement
in Seawater.
(Practical
Salinity Scale,
Percent Scale
and Natural
Seawater Scale).
PSU, NaCl%, g/L NaCl% Not available.
Cell Factor (cm
-1
) Manual Calibration
This option may be used to perform a manual calibration in a custom standard.
1. Rinse the pro be with a aliquot of standard and shake o excess solution.
2. Place the probe in the standard. The sleeve holes must be covered with
solution.
3. Press SETUP and use the ARROW keys to get to C.F. (cm
-1
)
4. Press MODIFY.
5. Use the pq keys to change C.F. (cm
-1
) until the display reads the Custom
Standard value.
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