7.2.2
Flushing the volume sensor
Remove the flow sensor (
Empty the measurement device.
Flush the device with a cleaning agent that is suitable for the components (
§ 9.1) being
used (e.g., solvents, acetone...).
Reinstall the measuring instrument in your metering section (
§ 4.1).
7.2.3
Cleaning the VZ 2 AL
CAUTION! Material damage when opening!
Opening with unsuitable tools can cause scratches and damages to the interior surfaces
of the device. They lead to measurement errors, premature wear and malfunctions.
Never lever apart the volume sensor in the separation joint between the housing top
and the housing bottom with a screwdriver or similar tool.
Never take the gear wheel out of the housing with a pair of piston.
Loosen and remove the fastening screws that hold both measuring-element housing-
halves together.
Carefully separate the housing top from the housing bottom.
Carefully remove the interior volume sensor components.
Clean the interior of the housing bottom, the gear wheel, the bearing and the O-ring with
a cleaning agent that is suitable for the material (e.g. solvents, acetone...).
Important in case of damages!
If mechanical damage is found within the housing or on the gear wheels, the complete
unit must be returned to the manufacturer for repair. (
§ 7.3: "Return shipment to the
All parts must be free of contamination. Ensure that no foreign matter remains inside the
flow sensor during installation.
Insert both gear wheels and their bearings in the lower housing part.
Lay the o-ring in the groove of the housing.
Place the upper housing part over the lower housing part.
Tighten all the screws holding the housing crosswise with a torque of 50 Nm.
Reinstall the measuring instrument in your metering section (
§ 4.1).
