Non-Conductive Pipe Grounding
IMPORTANT
If the process pipe is not electrically conductive (PVC, fiberglass, cement-lined pipes or any other non-conductive material)
and the meter was not originally ordered with an optional grounding electrode, you must install a pair of grounding rings
between the mating flanges at both ends of the meter. See the following illustration.
GASKETS RECOMMENDED
GROUNDING RING
GROUNDING RING
Figure 16: Non-Conductive Pipe Grounding
In this case, the grounding straps should be connected to both of the grounding rings and to a good, solid earth ground.
Grounding rings are available in stainless steel. If your fluid is too aggressive for stainless steel, order a meter with the optional
grounding electrode in a material compatible with the fluid.
AMPLIFIER MOUNTING CONFIGURATION OPTIONS
There are two configuration options for mounting the amplifier. There are many options to accommodate a variety of
meter-placement and environmental conditions.
The meter mount
configuration has the amplifier mounted directly on the detector. This compact, self-contained
configuration minimizes installation wiring.
The remote mount
configuration places the amplifier at a location away from the fluid flow and detector. This is necessary in
situations where process fluid temperature or the environment exceeds amplifier ratings.
The detector and amplifier are connected by wires, run through conduit, between junction boxes on the detector and the
amplifier. The distance between the detector junction box and amplifier junction box can be up to 500 feet (152 meters). A
remote mounting bracket is supplied.
Submersible Option
If you are installing the meter in a vault, you should order the remote amplifier option. You must not install the amplifier inside
a vault. We also recommend ordering the remote meter package with the submersible option (NEMA 6P). This will eliminate
any potential problems resulting from humidity or temporary flooding in the vault.
OTE:
N
The National Electronics Manufacturer's Association (NEMA) 6P enclosures are constructed for indoor or outdoor use
to provide protection against access to hazardous parts; to provide a degree of protection against ingress of solid
foreign objects and water (hose directed water and the entry of water during prolonged submersion at a limited
depth); that provide an additional level of protection against corrosion and that will be undamaged by the external
formation of ice on the enclosure.
SSK
513
Electromagnetic Flow Meter
Page 14
March 2014
