Fault Finding - Techne SBS-2 Manual Del Operador

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.
These noted have been prepared to give the user a simple and systematic series of checks for fault
correction.
Fault Bed will not fluidise
Cause Air lines broken or leaking
Action Check all air lines and connections for leaks or restrictions
Cause Incorrect air supply.
Action Check air supply for correct pressure (minimum 15 psi), and adequate
flow of 4-5 cfm.
Cause Fluidizing material damp.
Action Empty the bath. Blow air through it to remove all moisture. Dry the
material before replacing it in the bath or use fresh charge.
Cause Filters blocked or leaking.
Action Check for leaks or restrictions.
Cause Control valve malfunction.
Action Check function.
Fault Bed fluidizing erratically in one spot
Cause Porous plate damaged.
Action Empty the bath and check the area of the plate around the bad spot. If cracked or
damaged, a new plate must be installed. (Refer to disassembly procedure).
Cause Porous Plate leaking at the gasket (SBS-2) or periphery (SBS-4).
Action SBS-2 – Use a bead of GE RTV 106 at the place where it is leaking.
Allow the RTV to cure for 24 hours. SBS-4 – reseal with water glass (Sodium
Silicate).
If plate still leaks, replace it.
Cause Porous plate laden with oil film on the air supply side.
Action Replace the porous plate.

Fault FInDIng

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