METER GASKETS AND GROUNDING
Consider gasket and grounding requirements when determining the meter location, orientation and application. Ground all
units to eliminate risk of electric shock.
FAILURE TO PROPERLY GROUND A UNIT MAY CAUSE DAMAGE TO THAT UNIT OR DATA STORED WITHIN IT.
Meter/Pipeline Connection Gaskets
Install gaskets (not provided) between the detector's isolating liner and the
pipeline flange to ensure a proper and secure hydraulic seal. Use gaskets that
are compatible with the fluid. Center each gasket on the flange to avoid flow
restrictions or turbulence in the line.
During installation, do not use graphite or any electrically conductive sealing
compound to hold the gaskets. This could compromise the accuracy of the
measuring signal.
If you are using a grounding ring (as Badger Meter recommends) in the detector/
pipeline connection, place the ring between two gaskets. (See "Non-Conductive
Pipe Grounding" on page15.)
Figure 16: Meter/pipeline connection gaskets
Meter Grounding
Process pipeline material can be either electrically conductive (metal) or not electrically conductive (made of or lined with
PVC, fiberglass or concrete).
IMPORTANT
It is essential that the mag meter amplifier’s input ground (zero voltage reference) be electrically connected to the liquid media and
to a good, solid earth ground reference.
Potential Equalization
In order to obtain an accurate measurement, detector and fluid need to be on the same electric potential.
If flange or intermediate flange versions with additional grounding electrode are used, grounding is provided by the
connected pipeline.
• If a type of meter with a flange connection cable (min. 4 mm²) between the grounding screw on the meter’s flange and
the counter flange is to be used in addition to the fixing screws, verify that the electric connection is complete.
• Color or corrosion on the counter flange may have a negative effect on the electric connection.
Conductive Pipe Grounding
To achieve an adequate ground, the meter body MUST be electrically connected to the liquid media. The mag meter flanges
are provided with grounding bolts for this purpose.
If the pipe material is electrically conductive, simply install grounding straps between these grounding bolts and the
mating flanges.
These grounding straps must be copper wire, at least 12 AWG size. They must be connected on both sides (inlet and outlet) of
the detector and to a local, earth ground.
To provide a good electrical connection at the mating flanges, Badger Meter recommends that you drill and tap the flanges
and install a grounding screw (not provided).
Meter Gaskets and Grounding
MAG-UM-00219-EN-17Page 14 June 2021
To Next Page
Loading...
Need help?
General
