PART THREE - OPERATION
SECTION 3 - TRANSMITTER CONFIGURATION
Rev. 0-201
PRO-series Model C3 Conductivity Transmitter
35
Select
DISPLAY FORMAT
☞
3.
Press
ENTER key
again to display
.
Use
Ø
Ø
and
×
×
keys
to view the three choices:
•
CONDUCTIVITY:
Selects conductivity measurement.
•
RESISTIVITY:
Selects resistivity measurement.
•
TDS:
Selects total dissolved solids measurement.
WARNING:
CHANGING THE MEASUREMENT AUTOMAT-
ICALLY REPLACES ALL USER-ENTERED
VALUES WITH FACTORY-DEFAULT VALUES.
4.
With the desired choice displayed, press
ENTER key
to
enter this selection.
After choosing the measurement, select the desired
MEASURE screen display format. The selected units and
resolution will also appear on all applicable edit/selection
menu screens.
The nominal cell constant of a sensor determines its inher-
ent measuring range. Table A lists cell constants and their
respective measuring ranges. When configuring the meas-
uring units and display resolution for your application, make
sure they are within the sensor’s inherent listed range. If
they are not, choose a sensor with the appropriate constant.
Table A -- SENSOR CELL CONSTANTS and MEASURING RANGES
Sensor
Inherent Measuring Range
Cell
Constant
Conductivity
(in µS/cm)
Resistivity
(in M
Ω
•
cm)
TDS
(in ppm)
0.05
0-100
0.002-20
See Note below
0.5
0-1000
0.001-20
See Note below
1
0-2000
not applicable
See Note below
5
0-10,000
not applicable
See Note below
10
0-200,000
not applicable
See Note below
NOTE:
To determine which cell constant to use, convert the
full-scale TDS value to its equivalent conductivity
value at 25
°
C. Do this by multiplying the TDS value by
“2.” Then find the range in the Conductivity column
corresponding to the calculated value. The cell con-
stant to use is in that row.
