Hardware features
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The sample tank can hold a maximum of 120 ml of sample and dispersant prior to cir-
culation through the wet cell situated in the measurement area of the optical bench.
Sample and dispersant are poured directly into the tank as required.
Caution!
Do not overfill the beaker as spillage may occur once the pump starts. Clean
any spillage off the covers immediately to prevent damage.
The tank contains the pump and stirrer assembly.
Once a measurement has finished, the tank can be emptied using the drain valve lever in
the base of the dispersion unit. The sample fluid is emptied through the drain pipe out to
a sink or other waste container.
Sample pump and stirrer
The pump and stirrer keep the sample in suspension and continually circulate the sample
and dispersant through the wet cell.
The stirrer, located in the middle of the tank, agitates the sample/dispersant mixture to
ensure it is adequately dispersed prior to a measurement. The pump in the base of the
tank circulates the sample through the wet cell located in the measurement area of the
optical bench.
The pump and stirrer speed is controlled by the Dispersion unit controller.
Warning!
Never put fingers into the tank when the pump / stirrer shaft rotates.
Caution!
Never operate the pump / stirrer at more than half speed with the tank empty.
Tank cover
The tank cover protects the operator from splashes and prevents dust from entering the
system when left for extended periods. It also prevents evaporation or the release of
fumes when the system is in use, for example when using a noxious solvent or sample.
Always replace the cover after adding sample to the tank.
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