VPAD Manual
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11.1.2 Dismounting and cleaning
Unscrew the spindle of the viscometer axis and lower the spindle slowly in the sample container (K).
Caution on removing the spindle, it can be hot due to a previous high temperature
experiment.
Remove Adapter (G) from metallic glass.
Place the viscometer upright. Remove the upper stopper (N).
Remove the spindle carefully (L).
Unscrew the bottom stopper (M) and remove the container (K) from below the thermostatic flow jacket
(J).
Remove the container, wash it or use compressed air. Wash the circulation jacket too if necessary.
Remove Adapter (G) from the circulation jacket.
Important:
Do not use any cleaner or tool that can damage the metallic surface. Make sure you only use liquids compatible
with the LCP adapter material!
Solvents that can be used: water, ethanol or high concentrations of alcohol. For other solvents, check the
chemical compatibility table.
11.1.3 Technical specification for LCP accessories
Measurements range:
Sample L:
0.9* to 2 000 mPa.s or cP
Sample R:
3.2** to 21 333 mPa.s or cP
* Limited by turbulences
** For the measurements that represent 10 % of the base scale
Sample volume:
16.0 ml
Shear rate factor for the LCP spindle:
1.2236 x RPM ***
*** Shear rate is calculated based on the features of Newtonian liquids.
Temperature range of the circulation jacket & thermostatic flow
conditions:
Temperature range allowed: -10 a +100°C (14 a 212 °F)
Use a thermostatic bath with demineralised water or special refrigeration fluid. Change thermo fluid
regularly. Recommended flow: 15 l/min.
Materials:
The metallic parts are made of stainless steel; the lids are made of black Delrin plastic. The parts that
come into contact with the sample (sample container and spindle) are made of AISI 316 and are suitable
for the food industry.
The lid inferior washer is made with black Delrin. It is designed to withstand a maximum temperature of
100ºC (212 ºF)
The circulation jacket is made of acetal and Delrin.
The O-ring on the plastic stopper (M) of the LCP Adapter is made of Delrin.
The softening point is 110 °C (230 °F).
