• For sensors with PTFE liner, only remove the protective cap on the flange or on the threaded pipes of milk pipe screws per
DIN 11851 shortly before installation.
Meter Orientation
Mag meters can operate accurately in any pipeline orientation and can measure volumetric flow in forward and reverse
directions as long as the pipe is completely full.
OTE: N A “Forward Flow” direction arrow is printed on the sensor label.
Vertical Placement
Mag meters perform best when placed vertically, with liquid flowing upward and meter electrodes in a closed, full pipe.
Figure 6: Vertical placement
Vertical placement allows the pipe to remain completely full, even in low flow, low pressure applications, and it prevents
solids build-up, sediment deposit and accumulation on the liner and electrodes.
OTE: N Carefully observe the “Forward Flow” label on the meter body and install the meter accordingly. When installed
vertically, rotate transmitter so that the cable glands are facing down.
Horizontal Placement
When installing the meter on a horizontal pipe, mount the sensor to the pipe with the flow-measuring electrode axis in a
horizontal plane (three and nine o’clock). This placement helps prevent solids build-up, sediment deposit and accumulation
on the electrodes.
Electrode
Plane
Plane
Figure 7: Horizontal placement
Empty Pipe Detection
M2000 meters are equipped with an empty pipe detection feature. If an electrode mounted in the pipe is not covered
by fluid for five seconds, the meter displays an empty pipe detection condition. The meter sends out an error message
and stops measuring flow. When the electrode is again covered with fluid, the error message disappears and the meter
resumes measuring.
Straight Pipe Requirements
Run sufficient straight-pipe at the sensor inlet and outlet for optimum meter accuracy and performance. An equivalent of
3…7 diameters of straight pipe is required on the inlet (upstream) side to provide a stable flow profile. Two (2) diameters are
required on the outlet (downstream) side.
In applications with limited space, the M2000 can be installed with zero straight pipe requirements and fulfils the accuracy
according OIML R49 and MID Annex MI-001.
Meter Location, Orientation and Applications
Page 11 March 2022 MAG-UM-01272-EN-21
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