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4.0 FUNCTION OVERVIEW
4.1 Front
Panel
Figure 5 Front Panel
4.2 Display
A summary screen is displayed while the WCT controller is on. This display shows a bar graph of the
conductivity relative to the set point, the actual conductivity value, and current operating conditions.
The center of the bar graph is at the (S), which represents the set point. For each 1% rise above the set
point a vertical bar appears to the right of the (S). For each 1% drop below the set point a vertical bar
appears to the left of the (S). There are small breaks in the bars at each 5%. The bar graph is limited to
displaying 20% above or below the set point. When these limits are reached an (L) or (H) may appear at
the end of the bar graph to indicate a low or high alarm. The operating conditions that are displayed on
the bottom line of this display are Bleed, Chem Feed, Cond Hi/Lo Alarm, Sampling, Waiting, No Flow,
Biocide Pre Bleed, Bleed Timeout, Biocide Add, Biocide Lockout, Sensor Error, Temperature Error,
and Normal. Normal just means there is nothing unusual to report.
Figure 6 Summary Screen
Normal
1546
Normal
1728
Normal
2010
S
S
S
L
Cooling Tower Controller
On/Off Power Switch
Backlit LCD Display
Output LEDs
(WCT400 only has
Bleed and Feed LEDs)
Setting Adjustment Keys
Menu/Function Keys
USB Connector
USB LED
