2
The magnetic coils, electrodes and
other electronic components within
the main meter body receive power
from the electronics housed within
the cover plate through a ribbon
cable. See the included electronics
manuals for meter wiring diagrams
specific to your meter electronics.
IMPORTANT NOTICE
Your QSE meter is supplied ready
for operation in a wide variety of
applications. The meter has been
factory configured to your order.
It is suitable for volumetric flow
measurement of
non-flammable
,
electrically conductive liquids that
have a minimum fluid conductivity
of 10 µS/cm, and are compatible
with the wetted components of the
meter (See Specification Section).
Fluid conductivity below 50
µS/cm may result in uncertain
readings. Consult factory
for use with fluids having a
conductivity below 50 µS/cm.
Use QSE series meters with water,
aqueous solutions and other
non-
flammable
, electrically conductive
fluids. A fluid conductivity chart of
common liquids is in the back of
this manual for your reference.
Do
not
use the meter with petroleum
products (diesel fuel, unleaded
gasoline, jet fuel, kerosene, etc.)
or incompatible chemicals.
QSE series meters are very sensitive
to electric noise if operated within
6 inches (152mm) of some electric
motors, relays, transformers or
other sources of electronic noise.
If the QSE series meters are used
in a manner not specified by the
manufacturer, the protection provided
by the equipment may be impaired.
PRINCIPLE OF OPERATION
Faraday’s Law of Electromagnetic
Induction
is the operating principle
on which the QSE series meters are
based. Faraday’s Law (paraphrased)
states that a voltage will be induced
in a conductor when it passes
through a magnetic field, and the
induced voltage will be directly
proportional to the velocity of the
conductor passing through that
magnetic field. In this case, flowing
liquid is the conductor and the
QSE meter creates the magnetic
field. The velocity of the flowing
liquid, which must pass through
the magnetic field, is the velocity
of the conductor. A voltage is
induced in the conductive liquid
as it passes through the magnetic
field. By placing electrodes in
calculated locations on the flow
tube of the meter, it is possible to
accurately measure the induced
voltage, thus determining the
corresponding velocity and
volumetric flow of the liquid.
SAFETY
• This product is not approved
for use with petroleum
products (diesel fuel, unleaded
gasoline, jet fuel, kerosene,
etc.), aromatic hydrocarbons,
flammable fluids or other
incompatible chemicals
• This product is not approved
for use in hazardous locations.
• Be sure O-rings and seals
are kept in good repair.
• When applying power, adhere
to specifications listed in
appropriate electronics manual.
• Disconnect external power
before attaching or detaching
input or output wires.
