Models JLT4 and JLT6 are microprocessor controlled and combine simplicity of use with ergonomic design and reproducibility of operations. The front control panel is slightly bent for an easier setting and visualization of set parameters. The rotation speed, settable from 10 to 300 rpm with a resolution of 1 rpm, is kept constant by continuous alignement to the set value.
The residual stirring time can be displayed on two different scales: hours or minutes. The equipment can be used for two different analytical procedures: 1) Jar Test for the optimization of coagulants addition to flocculate suspended matter in water treatment plants. 2) Leaching Test for heavy metals, by diluted acetic acid or carbon dioxide saturated water, on solid wastes to be sent to dump.