Multifors 2 - Parallel Bench-top Bioreactor
Interferences
Page
204
of
211
28 March 2018
Interference
pH value drifts up and down over time or acid and base are added almost continuously in turn.
Possible cause
Remedy
By
Incorrect PID setting in
pH
parame-
ter.
Check the PID settings and adjust as necessary.
Change the special proportional factor (
Prop. Term)
or
Dead band
setting.
Operator
Incorrect strength of reagents: Con-
centration is too weak or too strong.
Check the strength of reagents. Adjust if necessary:
0.1 mol to 2.0 mol.
Operator
