Operation
Diaphragm pump N922 EX
30
Translation of Original Operation and Installation Instruction, english, KNF 313600 11/19
8.3 Adjust the flow rate (.29 version)
Tool
Quantity
Tool/material
1
Screwdriver blade width 6.5 mm
Tab. 29
à
If, for analysis systems, it is not possible to precisely determine suction
losses and the resistance of measuring devices, set the desired flow
rate as follows:
Reducing the flow rate
à
Turn adjustment screw X counterclockwise.
Increasing the flow rate
à
Turn adjustment screw X clockwise.
When the valve is closed as well as when completely open, signifi-
cant resistance is felt; then turn no further.
The corresponding end position is reached.
X
Self-locking adjustment
screw
Fig. 9 Setting the flow rate (N922FT.29E EX)
