The
apparatus consists of 4 parts. A water bath with 500 watt heater covered 1000
ml. Vessel made from broil glass and digital temperature control. Variable
speed motor, with 30cms longs stainless steel shaft. A cylindrical stainless
steel basket and a membrane fixing attachment, water bath is made of imported
thick Acrylic sheet with transparent cover at top. Temperature of the bath is
maintained at 30°C with an accuracy of ±1°C.A cylindrical glass vessel of 1000
ml. capacity with slightly concave bottom has a flanged edge at the top to
accept a fitted cover having four holes. One hole placed in the centre. The
shaft of the motor is fitted on an up right has an electronic speed regulating
device that allows the speed to be varied from 25 to 250 R.P.M. The shaft is 6
mm dia. 30 cms on with basket fitted at end rotates smoothly and without any
significant wobble. The basket consists of two parts one of which is attached
to the shaft. It is of solid metal except for 2 mm vent and is screwed on the
main shaft. Lower part of the basket is held with this part by means of
threading and this allows proper removal of lower part for introduction of the
test samples. The detachable part of the basket is fabricated of stainless
steel mesh formed into cylinder of size 36 mm× 25 mm dia. The equipment is
workable on 220 volts 50 C/S A.C.
(b)
–do- same as above but Analog type single stage.
(c)
–do- same as above analog type double
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