A bench-mounted framework incorporates facilities for six tests to be carried out simultaneously. The glass flocculating vessels stand on a translucent base which is illuminated from below. The paddle shafts are made of stainless steel to resist corrosion. Paddle speed is accurately maintained by electronic feedback control. A digital display clearly indicates the speed which is fully variable. Each flocculating vessel incorporates a stirrer paddle driven by a variable speed drive. The paddle assemblies are easily withdrawn for removal and cleaning of the test vessels. Alternatively, the use of two adjustable presets allows repetition of pre-selected speeds.

A digital timer can be set to count down from 1 to 99 minutes. After count

down the paddles stop and an alert sounds.

•  Stirrer speed range: 25-240rpm (approx.).

•  Sample volume: 1 litre (each vessel).

•  Dimensions of paddle blade: 50mm x 15mm.