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- Series VMZ
Installation of VMZ
Technical changes reserved
- 9 -
•
Installation can occur in horizontal and vertical pipes. The flow sensor is only suitable for
application in completely filled pipe systems.
•
As a matter of principle magnetic inductive flow sensors are widely independent from the
flow profile. An inlet section is not absolutely necessary.
To reach a most highly accuracy of the measurement, you should use straight inlet and
outlet sections according to the nominal width (DN). The inlet section has to be at least
10 x
DN; the outlet section 5
x DN in order to achieve the specified accuracy.
•
The inlet and outlet sections and the gaskets must have the
same or a slightly larger inside diameter than the measuring
tube in order to achieve the specified accuracy.
•
If two or more VMZ devices are used side by side, maintain a
separation
of at least 2.5
cm between adjacent devices.
If adjacent devices are too close together, operation of both
devices may be impaired due to mutual interference.
4.2
Assembly
The VMZ is installed directly into the pipeline. The compact design and light weight of the unit
make wall-mounting unnecessary.
IMPORTANT NOTICES:
•
Only use suitable gaskets for installation.
•
Observe the flow direction indicated on the type plate.
•
Observe the mounting dimensions (
§
9.4
"Dimensions").
Select an appropriate location for installation (
§
4.1
"Installation instructions").
To ensure the best possible measuring accuracy, a vertical
installation position with increasing flow is preferable (no col-
lecting of dirt deposits).
Install the appropriate screwed connections at the installa-
tion location.
Insert the VMZ together with the gaskets.
Screw the union nuts of the screwed connection onto the pro-
cess connections of the VMZ.
CAUTION! Material damage!
Maximum torque 5 Nm.
While tightening, counter the VMZ only by hand!
If you use an open-end or a pipe wrench, the VMZ can be
damaged.
Tighten both union nuts
with a maximum torque of 5 Nm.
