Multifors 2 - Parallel Bench-top Bioreactor
Interferences
Page
206
of
211
28 March 2018
10.5 Interferences Antifoam or Level Sensor and Antifoam Pump
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 sensor is damaged.
Have the sheathing of the sensor replaced.
INFORS HT
service techni-
cian or li-
censed dealer
Interference
Antifoam pump does not work.
Possible cause
Remedy
By
Parameter
Antifoam
is not activated. Activate the parameter.
Operator
Dosing time of parameter
Antifoam
=
0 (zero).
Set dosing time > 0.
Operator
Remedy
No antifoam agent or medium supply or inadequate flow.
Possible cause
Remedy
By
Reagent bottle is empty.
Refill if necessary.
Operator
Wrong antifoam agent or incorrect
concentration.
Replace if necessary.
Operator
Hose line blocked or clamped.
Check the hose connection between the reagent
bottle and the culture vessel: If necessary, connect
them correctly.
Open/remove hose clamps if necessary.
Operator
Antifoam pump does not work.
Check operation using the rocker switch.
Operator
The pump hose is damaged.
Replace pump head.
Operator
Incorrect hose type connected.
Replace if necessary.
Operator
