• 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
RIGHT
Electrode
Plane
WRONG
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
