Chapter 3 - Unique Features - Garnet SeeLeveL Special 809-DM User Manual

CHAPTER 3 - UNIQUE FEATURES

T
he SeeLeveL gauge has been designed for maximum ease of
installation and servicing, and for best operational features.
The anchor at the bottom of the tank provides a shock mount for
the float. If the sender bar needs replacement, the new sender bar
can be cut to the same length as the old so that no re-calibration
is required.
The polyethylene float has good chemical resistance, good
esthetic appearance, and high durability due to the "give" in the
plastic. The light weight of the polyethylene allows the float size
to be minimized while allowing it to float on the lowest density
products.
The sender bar has no moving parts and is completely filled with
potting material to enhance reliability. The use of a digital rather
than analog sensing technique lowers power consumption to
permit battery operation, and ensures high accuracy with no drift
or degradation. To accommodate different tank sizes, the bar is
simply cut to length with a hacksaw, and the cut end sealed with a
cap to prevent moisture or product contamination. This way only
one size needs to be stocked, and a perfect fit is ensured. The
sender head is very low in profile to satisfy rollover requirements;
the maximum height is less than 5 inches above the top of the
tank so that it will not protrude above the spillway. The sender bar
provides a high resolution of either 1/6" or 1/10".
The single fiber optic cable connecting the sender head to the
display can be disconnected at both ends. There is approximately
10 times as much light as is required for operation available for
the fiber, so no special fiber end preparation is required. The fiber
ensures that even with faulty wiring into the display, no explosion
hazard can exist.
The small size of the display box also makes it easy to find an
appropriate mounting location. The illuminated LCD ensures that
the gauge display is always visible, regardless of ambient lighting
conditions.
The use of an on-site programmer eliminates downtime waiting
for factory calibration parts, and allows easy reprogramming
should the need arise. The entire display, including decimal point,
is completely programmable to whatever units are desired. In
addition to numbers, the letters F, U, L, and E can be programmed
to provide displays such as FULL, E, etc.
programmed to turn either on or off to save terminals and wiring,
Page 6
The alarm can be
809-DM Manual