Minifors 2 - Benchtop Bioreactor
Interferences
07 February 2019
Page
201
of
214
12.7 Interferences Antifoam/Level Sensor and Antifoam Pumps
Interference
Foam/medium is not detected.
Possible cause
Remedy
By
Sensor is not properly connected.
Check connections and connect properly as neces-
sary.
Operator
Interference
Foam/medium is always/frequently detected.
Possible cause
Remedy
By
Sheathing of antifoam sensor is
damaged.
Have the sheathing of the antifoam sensor replaced. INFORS HT
service techni-
cian or li-
censed dealer
Interference
Antifoam pump does not work.
Possible cause
Remedy
By
The
Foam
parameter is not acti-
vated.
Activate the
Foam
parameter.
Operator
Pump 3 (
antifoam
) is not switched
on.
Switch on pump 3 (
antifoam
).
Operator
Remedy
No antifoam agent or medium supply or inadequate flow.
Possible cause
Remedy
Remedied by
Reagent bottle is empty.
Refill if necessary.
Operator
Incorrect antifoam agent or incorrect
concentration.
Replace if necessary.
Operator
Hoses blocked or clamped.
Check the hose connection between the reagent
bottle and the culture vessel: If necessary, connect
them correctly.
Remove clamps if necessary.
Operator
The corresponding pump is not func-
tioning correctly.
Check the function of the pump using the operating
panel.
Operator
The pump hose is damaged.
Replace pump head.
Operator
Incorrect hose type connected.
Replace if necessary.
Operator
