Cleaning The Filter Housing - ABB AW101 Instruction Manual

Water Hardness Analyzer
AW101 Testomat

8.2 Cleaning the Filter Housing

To clean the filter housing:
1. Close the hand-operated valve on the sample line to the
AW101.
2. Undo the hose connections to the filter housing.
3. Unscrew the inlet connection, remove sealing ring, spring
and filter strainer. Clean these items.
4. Extract the retaining pin and withdraw the flow regulator
and remove the valve body.
5. Clean the filter housing with water or alcohol and
reassemble.
Note. Insert the filter strainer with pointed end
downwards.
6. Install the hose connections to the filter housing.
Water leakage from the seals can result in damage to
parts of the unit
16
Check the unit for leaks before carrying out the first analysis:
1. Switch the unit to STANDBY
2. Manually fill the measuring chamber
3. Manual reagent dosing (key Manual)
4. Check the connections and seals for leaks
Note.
Care for the unit:

Avoid contact of the housing surface with reagent, oil
or grease.

If the housing is contaminated, clean the surface with
isopropanol (never use other solvents).
8 Maintenance
IM/AW101 Rev. C