Walchem WCT400 Series Instruction Manual

Walchem WCT400 Series Instruction Manual Manual pdf 15 page image

124.0 FUNCTION OVERVIEW4.1 Front PanelFigure 5 Front Panel4.2 DisplayA summary screen is displayed while the WCT controller is on. This display shows a bar graph of theconductivity 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 setpoint a vertical bar appears to the right of the (S). For each 1% drop below the set point a vertical barappears to the left of the (S). There are small breaks in the bars at each 5%. The bar graph is limited todisplaying 20% above or below the set point. When these limits are reached an (L) or (H) may appear atthe end of the bar graph to indicate a low or high alarm. The operating conditions that are displayed onthe 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 ScreenNormal1546Normal1728Normal2010SSSLCooling Tower ControllerOn/Off Power SwitchBacklit LCD DisplayOutput LEDs(WCT400 only hasBleed and Feed LEDs)Setting Adjustment KeysMenu/Function KeysUSB ConnectorUSB LED