AMI Codes-II
Maintenance
A-96.250.571 / 050517
53
6.6.
Cleaning the protective Filter
Switch off the instrument according to instructions in
Normally the filter in your sample supply line will retain most debris.
If the filter shows deposits, proceed as follows:
1
Close the main tap of the sample inlet.
2
Close flow regulating valve [B].
3
Unscrew and remove the filter vessel [E] from the
flow cell block [A].
4
Hold the filter [D] on the shaft [C] and unscrew and remove it.
5
Backwash the filter under pressure of tap water.
6
Clean the outside of the filter.
7
Install the filter and the filter vessel again.
8
Establish the sample flow.
9
Adjust sample flow with the regulating valve.
A
B
C
D
E
Flow cell block
Flow regulating valve
Filter shaft
Filter
Filter vessel
C
D
E
B
A
