ATI
Q46C2 2Electode Conductivity System
Part 5
– Configuration
32
O&M Manual
Rev-H (6/19)
Contrast
This function sets the contrast level for the display. The custom display is
designed with a wide temperature range, Super-Twist Nematic (STN) fluid.
The STN display provides the highest possible contrast and widest viewing
angle under all conditions. Contrast control of this type of display is
generally not necessary, so contrast control is provided as a means for
possible adjustment due to aging at extreme ranges. In addition, the
display has an automatic temperature compensation network. Press
ENTER to initiate user entry mode, and the value will flash. Use arrow
keys to modify the value; range is 0 to 8 (0 being lightest). Press ENTER
to update and store the new value.
Main Display
This function allows the user to change the measurement in the primary
display area. The user may select between conductivity, sensor
temperature, or output current. Using this function, the user may choose
to put temperature in the main display area and conductivity on the
secondary, lower line of the display. Press ENTER to initiate user entry
mode, and the entire value will flash. Use the UP arrow key to modify the
desired display value. Press ENTER to store the new value.
Sensor Type
This function allows the user to select the sensor cell constant value.
Options are: 0.05, 0.50, or 1.00.
Zero Filter
This function forces the reading to zero when reading is below the entered
value. For example, If the entered value were 2.1 uS, the display would
read 0.0 uS when the measured value reached 2.0 uS. This feature is
useful in blanking out very small and meaningless zero variability.
Select TC
The user can select the sensor temperature compensation element. The
options are 100 ohm RTD or 1000 ohm RTD.
Ref Temp
The reference temperature function sets the basis point for the linear
temperature compensation methods. In most cases this setting should be
left at the default of 25.0 °C.
Press ENTER to initiate user entry mode, and the entire value will flash.
Use the arrow keys to modify the desired value; range is 0.0°C to 50.0°C.
Press ENTER to update and store the new value. This setting appears in
the Software Menu only if “Temp Mode” is set to
Lin
.
TC Method
This function allows selection of the method used for the temperature
compensation in the instrument. The choices are
1-Lin
or
2-Table.
The
Lin (linear) method is by far the most common and should be used unless
special measurements are being made.
Under the
2-Table
selection, a custom temperature compensation table is
available. Up to six temperature points and corresponding TC factors can
be entered by the user.
This selection is critical for control of the internal diagnostics and compensation factors.
Press ENTER to initiate user entry mode, and the entire value will flash. Use the UP arrow
key to modify the desired value.
