Instruction Manual Section 8: Programming Measurements
LIQ-MAN-1066 April 2017
Programming Measurements 49
Slope
The display screen for Entering the conductivity/temp Slope is shown.
The default value is displayed in bold type. Refer to the contacting
conductivity Programming flow diagram to complete this function.
Reference Temp
The display screen for manually entering the Reference temperature is
shown. The default value is displayed in bold type. Refer to the
contacting conductivity Programming flow diagram to complete this
function.
Filter
The display screen for entering the input filter value in seconds is shown.
The default value is displayed in bold type. Refer to the contacting
conductivity Programming flow diagram to complete this function.
Custom Setup
The display screens for creating a custom curve for converting
conductivity to concentration is shown. Refer to the contacting
conductivity Programming flow diagram to complete this function.
When the custom curve data entry is complete, press ENTER. The
display will confirm the determination of a custom curve fit to the
entered data by displaying this screen:
If the custom curve fit is not completed or is unsuccessful, the display will
read as follows and the screen will return to the beginning custom curve
screen.
Cal Factor
Upon initial installation and power up, if 4-electrode was selected for the
sensor type in the Quick Start menus, the user enters a Cell Constant and
a “Cal Factor” using the instrument keypad. The cell constant is needed
to convert measured conductance to conductivity as displayed on the
transmitter screen. The “Cal Factor” entry is needed increase the
accuracy of the live conductivity readings, especially at low conductivity
readings below 20 uS/cm. Both the Cell Constant and the “Cal Factor”
are printed on the tag attached to the 4-electrode sensor/cable.
8.4.9
8.4.10
8.4.11
8.4.12
8.4.13
1.234 µS/cm 25.0 ºC
SN Slope
2.00 %/ºC
1.234 µS/cm 25.0 ºC
SN Ref Temp
(25.0ºC normal)
+25.0ºC
1.234 µS/cm 25.0 ºC
SN Input filter
02 sec
1.234µS/cm 25.0ºC
SN Custom Curve
Configure
Enter Data Points
Calculate Curve
1.234µS/cm 25.0 ºC
SN Cal Factor
0.95000/cm
1.234 µS/cm 25.0 ºC
SN Calculate Curve
Custom curve
fit completed.
In Process Cal
recommended.
1.234 µS/cm 25.0 ºC
SN Calculate Curve
Failure
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