Model 602 sludge depth meter

The Model 602 sludge depth meter automates sludge level detection and features analog, digital and relay outputs. Automatic desludging yields thicker sludge than processes using timers and/or manual methods, and reduces sludge disposal or processing costs. Plants that are not staffed 24 h/d, 7 d/wk rely on automatic desludging to maintain proper sludge-blanket levels. This 602 Series can be used as a stand-alone system to alarm or automatically control a pump, or it can function as an intelligent sensor for a programmable logic controller (PLC) or computer. The optional settled-sludge profile can be viewed on a computer screen, which is helpful during plant upsets and can assist in proper coagulant-dosage control. The meter is used in sewage treatment, industrial process water and wastewater clarification, metal hydroxide sludge-blanket level-control, drinking water purification, ore processing, or wherever solids are separated from liquids