Dwyer MVR - Manual

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ViewRite
Magnetic Liquid Level Indicator
Instruction Bulletin No. 204129
Thank you for purchasing the Dwyer ViewRite Magnetic Level Indicator. Please read this document prior to installing your
ViewRite and store it where it may be readily referred to for familiarization and maintenance purposes. If you require any
additional information, you are welcome to call Dwyer at the number shown below.
1-219-879-8000
Record the Part Number of your ViewRite here to use when ordering spare or replacement parts:
Part Number:____________________
ViewRite Operating Principle
The liquid level of a tank is made visible, even at great distances,
through the use of a shock and vibration-proof magnetic level indicator
that employs “flags” arranged within a specially constructed external
housing: the flag assembly. The two sides of each pivoting flag are
marked with contrasting colors. A permanent magnet is encapsulated
inside each flag and forms a secure magnetic interlock with the
adjacent flags. As the liquid level rises, a float equipped with a
permanent magnet causes each of the flags to begin rotating in turn.
This action exposes the contrasting (fluid level indicating) color on
the other side of the flag. As the float and liquid level rise, each flag
below the level of the float completes a 180 degree rotation, while
remaining magnetically interlocked with the other lower flags.
Together, the rotated flags display a band or column of color, the
height of which corresponds with the liquid level within the tank. An
exclusive feature of the ViewRite is the patented magnetic guide
that is integrated into the flag assembly. This magnetic attraction
ensures that the float is always aligned for optimum performance
and exactness, regardless of any shock, vibration, or rapid change
to the level of fluid in the tank.
Standard and Mini-ViewRites are supplied with the floats packed
either separately, or securely strapped to the unit. The float supplied
with each unit has been designed to the specific gravity of the fluid
being monitored, so that the permanent bar magnet will always seek
and indicate the fluid surface. Because of the attraction of the
permanent bar magnet in the float and the patented magnetic guide,
the ViewRite flag assembly can be rotated to a position which will
allow for optimum viewing.
(See the Maintenance Section on page 4 for instructions on how to rotate your
ViewRite flag assembly.)
Flag Channel
Magnetic Flags
(Plain Side Out)
Magnetic
Float
Magnetic Flags
(Colored
Side Out)
Weldment
Tank
Liquid