electrical power ground.
GROUND
CLAMP
CLAMP
RUN 14 AWG. WIRE FROM FABRICATED
GROUND TO GREEN SENSOR GROUND
SCREW
PLASTIC
TANK
SENSOR
A B
C
E
D
PUMP
WEIGHT
F
METAL
C
MOUNT SENSOR IN METAL PIPE
Mounting the level sensor inside a metal
pipe provides an excellent ground
reference.
Use only if the process material is
greter than 1000 uMHOS/cm such as acids
and caustic.
A
GROUND ROD
A ground rod can be fabricated out of any
metal compatible with the process. Use
material that is at least 3/8inch dia. such as
pipe, All-Thread, or tubing. The ground rod
must be parallel and relatively close to the
sensor.
B
GROUND WIRE
1/4 inch or larger dia. stainless steel rope
that is anchored or weighted can be used.
E
SUBMERGED METAL STRUCTURE
Use any constantly submerged metal
object such as: pumps, agitators, or
thermowells.
F
METAL FLANGE
A submerged metal flange or orifice plate
can be used.
Use only if the process material is greater
thatn 1000 uMHOS/Cm. such as acids and
caustic.
D
METAL PIPING
Metal piping that connects to the tank
bottom can be used as a ground
reference. Use only if the process material
is greter than 1000 uMHOS/cm such as
acids and caustic.
If the vessel is non metallic see grounding sketch below.
sensors
with factory supplied concentric shield or ground rod do not need
additional grounding.
Measure ground continuity from housing ground screw to metal
wall of vessel. A good ground will measure less than 5 ohms.
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