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Our mid-priced gauge has a daytime viewable LCD
display with backlight for night viewing,
inside/outside mountable enclosure, programmable
alarm output, overfill warning and an output to
drive the 815 SpillStop.
This gauge has a selectable resolution of 1/6"
or 1/3". |
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Provides an accurate digital readout of the amount
of product in a truck or trailer tank |
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Microprocessor based technology provides resolution of
1/6 or 1/3 inch, selectable at time of installation.
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The Model 808P2 provides a readout on a daytime
viewable LCD display suitable for inside or outside
mounting with a back light for night viewing, a
programmable output to operate a SpillStop
overfill prevention system, and a programmable alarm
output which can operate a light, horn, isolation
valve, or the MultiRack
optic/thermistor rack controller.
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The display can be calibrated with the 916 programmer
to read in inches of level, or in volume units such as
barrels, gallons, litres, or cubic metres.
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No moving parts except for the molded plastic float
ensures high reliability.
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Micro power circuitry runs on internal batteries - no
truck power is required.
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All digital design eliminates reading drift or
degradation, ensuring long term accuracy under all
operating conditions.
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Built-in overfill warning alarm can activate a horn or
light.
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Fibre optic connection between tank and display for
complete electrical safety.
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Operation from -40 to +60 oC (-40 to +140 oF)
ambient, up to +85 oC (+185 oF)
product.
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Accuracy up to +/- 0.125 inches (+/- 0.35 cm).
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Easy installation and servicing, one year limited
warranty.
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Click to enlarge
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The gauge operates using a magnetic reed switch sensor
bar detecting the float magnetic field. The effective
magnetic sensor density is 3 per inch for high
resolution applications. This gives a nominal accuracy
of +/- 1/12 inch, but with variations in reed switch
sensitivities the actual accuracy is +/- 1/8 inch.
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When the float is rising, the gauge will read about
1/16 inch lower than when the float is falling. This
happens because the reed switches are less sensitive
to engagement than they are to disengagement. The
practical result of this is that the gauge reading is
very stable and does not flicker with small ripples on
the surface of the product.
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A 316 stainless steel seamless tube houses the sensor
bar, and the fitting holding the tube in place can be
either steel or stainless steel. The tube and
polyethylene float are resistant to oils, fuels,
acids, sewage, and most chemicals. The sensor bar is
fully sealed to prevent moisture or product from
damaging the bar. The bar can be ordered to fit any
size tank up to 85 inches in height, and can be easily
removed for servicing, or for use on another trailer.
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The circuitry in the sensor bar is powered by a
lithium battery with a lifetime of approximately 10
years.
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Plastic fibre optic cable transports the information
from the sensor bar to the display to provide complete
electrical isolation for the components inside the
tank. The fibre optic light level is ten times higher
than required, so the fibre can be cut with a knife
for easy installation; no polishing or special
preparation is required.
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The 808P2 display is powered by a lithium battery with
a 10 year life. The LCD is large enough to allow
display viewing from up to 15 feet away. For easy
night viewing, the 808P2 has a light behind the LCD
which is powered by 12V truck power. The display is
built into a Valox Betts enclosure, which is
weatherproof and able to resist indirect road spray.
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The gauge calibration is programmed during
installation with the 916 programmer. The calibration
can be done in inches of level, or in any volume unit
desired, as long as a calibration table (volume vs.
depth) is available for the tank. The display has four
digits, allowing better than 1/4 % accuracy on the
readout. A five digit version is also available which
provides a continuous trailing zero for gallon or
litre applications.
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The SpillStop and alarm outputs on the 808P2 are
programmed with the 916 programmers during
installation, and can be altered at a later date if
desired. Am overfill warning feature permits a simple
alarm to be operated and then bypassed by pressing a
switch on the outside of the display enclosure. The
alarm will automatically reset when the tank is empty.
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The SeeLeveL gauge can be used with other Garnet
products to improve safety, economy, and convenience.
The SpillStop overfill prevention system provides an
automatic horn warning and pump shut down to prevent
spills when loading with truck mounted PTO driven
pumps. The MultiRack rack controller provides optic
and thermistor loading rack control to permit loading
at rack controlled facilities.
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The 808 series is one of our most popular models with
well over 4,000 systems installed to date.
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