Instruction Manual
DM04
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.
4.2 Mounting
The DM04 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 DM04.
Observe the mounting dimensions (§ 9.5 “Dimensions”).
Select an appropriate location for installation (§ 4.1 “Installation in-
structions”).
To ensure the best possible measuring accuracy, a vertical installation
position with increasing flow is preferable (no collecting of dirt depos-
its).
Install the appropriate screwed connections at the installation location.
Insert the DM04 together with the gaskets.
Screw the union nuts of the screwed connection onto the process con-
nections of the DM04.
CAUTION! Material damage!
Pay attention to maximum torque.
While tightening, counter the union nut on the hexagon of the pro-
cess connection!
If you do not counter it, the DM04 can be damaged!
Maximum Torque
DM04.1 - G½
DM04.2/3 – G½ • G¾
DM04.4 - G1
15 Nm
15 Nm
30 Nm
Tighten both union nuts.
When tightening, use a spanner (AF 27 or AF 34) to counter the pro-
cess connection on the hexagon in place.
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PKP Prozessmesstechnik • 08/2019
