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Fault FInDIng
The following guide has been prepared should a fault develop with the fluidised bath. The procedures
laid down should be followed using only the specified replacement parts. If the fault cannot be located
by using this guide, Techne carry full service facilities.
If the unit fails to operate, check the fuse, electrical and air supplies.
Fault
Check
Poor fluidisation
a) Unit not level
b) Inadequate air flow
c) Inadequate air supply
d) Air filters blocked
e) Defective air flow meter
f) Bath over-filled with alumina
g) Fluidisation restricted by large mass placed in bath
h) Porous plate blocked
Poor temperature
It should be noted that in order to achieve good thermal
control
conditions within the fluidised bath, it is important that
the bath is properly fluidised. If all the instructions have been
followed concerning the fluidisation in the operating procedure,
there could be a fault with:
a) The temperature control unit. A separate leaflet is provided which
covers fault finding and service of this unit.
b) The Triac/Solid State Relay.
