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4.0 FUNCTION
OVERVIEW
4.1 Front
Panel
Setting Adjustment Keys
Output LEDs
(WBL400
only has
Blowdown and Feed LEDs)
Backlit LCD Display
Menu/Function Keys
On/Off Power Switch
USB LED
USB Connector
Figure 5 WBL410 Front Panel
4.2 Display
A summary screen is displayed while the WBL 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 Blowdown, Chem Feed, Sampling, Waiting, Sensor Error, Blowdown Timeout,
Holding, and Normal. Normal just means there is nothing unusual to report.
Normal
1546
Normal
1728
Normal
2010
Figure 6 Summary Screen
