Page 13
4-11
Installation & Operation Manual
Meter Gaskets and Grounding
Gasket and grounding requirements must be considered when determining the meter location, orientation and application.
Meter/Pipeline Connection Gaskets
You must 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.
GASKETS RECOMMENDED
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 in the detector/pipeline connection, place the ring between two gaskets. (See
Non-Conductive Pipe Grounding
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.
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.
To ensure a good electrical connection at the mating flanges, we recommend that you drill and tap the flanges and install a
grounding screw (not provided).
These grounding straps must be copper wire, at least 12AWG size. They must be connected on both sides (inlet and outlet) of
the detector and to a local, earth ground.
