Troubleshooting
During troubleshooting, follow the instructions in this manual. A correct installation is crucial to
proper operation.
Before repair or service of the GMP ATEX Mixer, personnel must study and understand this user
guide.
Before performing maintenance on the GMP ATEX Mixer, make sure that the vessel is:
•
Cooled down to below 25 °C (77 °F)
•
Emptied of liquid and hazardous gas
•
Free from traces of harmful products
It is the customer’s responsibility to check the safety of the GMP ATEX Mixer used in a new
application according to:
•
External load
•
Reaction forces and torque
•
Corrosion, erosion, and fatigue
•
Decomposing of unstable liquids
Problem
Possible Causes
Solutions
Motor/mixing
head does
not rotate
No power
Inspect power supply.
Overload protection tripped
Check the setting amp value and the
ambient temperature.
Heavy load of particles stuck to the
magnets
Clean the unit.
High amp
value
Ambient temperature too high
Chill the environment.
Motor mechanically overloaded
Check all transmissions.
Mixing head
scratches
against tank
plate
Male bearing worn out
Replace male bearing.
Female bearing holder is damaged
Repair mixing head.
Loose male bearing
Remove male bearing. Inspect male
bearing and tank plate for damage. If it
is undamaged, reinstall the bearing and
check rotation direction of the mixing
head.
Particles stuck to the magnets
Remove particles.
Deformation after welding
Review instructions for welding the tank
plate and verify tolerances.
28
Installation and User Guide
Summary of Contents for EMD Millipore NovAseptic
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