ATI
Q45C2 2E Conductivity System
Part 4 – Configuration
O & M Manual
Revision K (01/07)
- 37 -
If Relay B Mode is set to
CON
(see
Relay B Mode
), then
Relay B will function identically to Relay A. Relay B settings
appear in the CONFIG menu list automatically.
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.
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.
Temp
Units
This function sets the display units for temperature
measurement. Press ENTER to initiate user entry mode,
and the entire value will flash. Use the UP arrow key to
modify the desired display value. The choices are °F and
°C. Press ENTER to store the new value.
Temp
Input
This function allows the user to manually lock the
temperature at a fixed value of 25 °C. Once locked at 25 °C,
a small
m
appears next to the temperature value on the
lower line of the display to indicate to the user that the
system is in manual lock mode. All temperature
compensation is defeated when in the manual lock mode.
This mode is provided for users requiring uncompensated
conductivity readings. Press ENTER to initiate user entry,
and the entire value will flash. Use the UP arrow key to
*B Setpoint
*B Hysteresis
*B Delay
*B Phasing
