3
Meter with Remote Mount Primo
Fluid temperature: PTFE/PFA, -40 to 302°F (-40 up to +150°C)
Chemical Injection Applications
For water line applications with a chemical injection point, the meter
should be installed upstream of the chemical injection point to
eliminate any issues with the meter performance. If an upstream
location is not possible for the meter, consider moving the injection
point downstream of the meter location. If the meter must be installed
downstream of the chemical injection point, the distance between
these (2) locations must be significant; frequently 50 - 100 feet.
When the solution made up of the water and the injected chemical
reach the Mag meter, it must be a complete homogeneous mixture.
If too close, the Mag meter will sense (2) different liquids (conductivity
different for each) and will be confused as to how to process the
information. Many other factors such as the type of injection method,
(spaced bursts versus continuous stream of drops), or whether the
chemical is injected in a liquid or gas form, can cause a wide variation
in the distance required from one application to another.
Due to this wide range of factors, it is difficult to specify a distance
that will always work for any application without establishing a value
far in excess of what would usually be required. Please contact
Badger Meter's Technical Support at 1-800-616-3837 with your
application detail and they can assist in determining if the Mag meter
should properly perform. As noted, the meter may require 50 - 100
feet from the injection point to assure the complete homogeneous
state.
Submersible Option
If the meter is to be installed in a meter vault, it should be ordered with
the remote amplifier option to be sure the amplifier is not installed
inside the vault. It is also recommended that the remote style meter
package be ordered with the submersible option (Nema 6P). This will
eliminate any potential problems from occurring should the vault
become flooded or from any presence of humidity in the vault.
Other Considerations
Avoid all pipe locations where the flow is pulsating, such as in the outlet
side of piston or diaphragm pumps.
Avoid locations near equipment producing electrical interference
such as electric motors, transformers, variable frequency, etc.
Install the meter with enough room for future access for maintenance
purposes.
The mag meter isolating liner is not intended to be used as gasket
material. Standard gaskets (not provided) should be installed to ensure
a proper hydraulic seal. When installing the gaskets, make sure they are
properly centered to avoid flow restriction or turbulence. Do not use
graphite or any electrically conductive sealing compound to hold the
gaskets in place during installation. This could affect the reading
accuracy of the measuring signal.
STRAIGHT PIPE REQUIREMENTS
For optimum accuracy performance, it is required to provide suffi-
cient inlet and outlet straight pipe runs. An equivalent to 3 diameters
of straight pipe is required on the inlet side, and 2 diameters on the
outlet side. There are no special requirements for standard concen-
tric pipe reducers.
FORWARD FLOW
MINIMUM STRAIGHT PIPE
MINIMUM STRAIGHT PIPE
ELBOW
TEE
GATE VALVE
(FULLY OPEN)
MINIMUM STRAIGHT PIPE
CHECK VALVE
GLOBE VALVE
BUTTERFLY VALVE
PUMP
ELBOW
TEE
ANY VALVE
MAGNETOFLOW MAG FLOWMETER
(Shown with Junction Box for Remote Amplifier )
3 x D
7 x D
2 x D
D (Pipe Size)
D (Pipe Size)
STANDARD CONCENTRIC
REDUCERS
(NO DISTANCE REQUIRED)
By using pipe reducers, a smaller meter size can be mounted in larger
pipeline sizes. This may also increase low flow accuracy performace.
In order to minimize flow disturbances and excessive loss of head,
custom fabricated pipe reducers must have a minimum slope angle
of 15 degrees. If this is not possible, install the custom pipe reducers
as if they were fittings, leaving the minimum straight pipe required.
Mounting Location
The detector should never be installed on the suction side of a pump
where a vaccuum exists to eliminate the possibility of damage to the liner.
If vibration exits on the pipeline, secure the piping before and after
the meter. If a strong vibration exists, the amplifier should be mounted
remotely.
Remote Version
Do not install cables near power cables, electrical machines, etc.
Be sure both ends of signal cable are securely fastened. Run power
and signal cables in separate conduit.
METER ORIENTATION
Magnetoflow
®
Mag meters can operate accurately in any pipe
orientation and can measure the volumetric flow in the forward and
reverse directions (note FORWARD FLOW direction printed on the
detector label). The most recommended installation position is
vertical piping, with the liquid flowing upward (see figure below).
This installation practice ensures two objectives:
1. The pipe remains completely full of liquid, even at low flow, low
pressure applications with a discharge to the atmosphere.
2. Solid build-ups or sediments that could be part of the process
fluid will not deposit or accumulate on the liner and/or electrodes.
In horizontal piping orientation, the detector should be mounted in a
position at which the measuring electrodes axis will remain in a
horizontal plane (3 and 9 o’clock position; see figure below)
Electrode
Plane
RIGHT
Electrode
Plane
WRONG
For very low flow rate applications, the flow rate can be increased by
reducing the meter size and therefore the measuring accuracy can
be improved.
