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Distance Units
Feet (Default is one decimal place.)
Meters (Default is two decimal places.)
Engineering Units (Default is no decimal places.)
Pounds
Kilograms
Gallons
Liters
TANK PARAMETERS
This menu defines the tank dimensions. All distances except Cone Height are taken from the home position of
the sensor. The firmware allows the user to enter only the following possibilities:
Tank Height > = Maximum Move Distance > = Tank Empty Distance
Tank Empty Distance > Tank Full Distance > = 0
Tank Height > Cone Height > = 0
Maximum Move Distance > = (Tank Height/2)
• TANK HEIGHT
This parameter is the distance from the GP-4 Yo-Yo sensor home position to the bottom of the tank. The
default value is 75 ft. (22.86 m) and the range is from 3.3 ft. (1 m) to 199.9 ft. (60.93 m).
Note: Standard cable length is 100 ft. (30.48 m). DO NOT program a value greater than this length unless a
special storage wheel with an extended length of cable has been provided with the sensor.
The tank height value must be greater than or equal to the Maximum Move Distance and Tank Empty
Distance. Therefore, setting this value to less than 75 ft. (22.86 m) will automatically reduce the value of
the Tank Empty Distance and Maximum Move Distance to the same value.
• TANK FULL DISTANCE
This parameter is the distance from the GP-4 Yo-Yo sensor home position to the level of material
where the tank is considered full. This parameter also determines the 20 mA output point when 20 mA
represents a "full" vessel. If 20 mA represents an empty vessel, the Tank Full Distance is also setting the
4 mA point. The default value for the Tank Full Distance is 0. The range is from 0 ft. (0 m) to 1,999.9 ft.
(60.93 m).
• TANK EMPTY DISTANCE
This parameter is the distance from the GP-4 Yo-Yo sensor home position to the point where the tank
is considered empty. This parameter normally determines the 4 mA output. The default value is 75 ft.
(22.86 m) and the range is from half of the Tank Height parameter to 199.9 ft. (60.93 m).
• MAXIMUM MOVE DISTANCE
This parameter is the maximum travel distance from the GP-4 Yo-Yo sensor home position. This
parameter is used to limit the sensor form traveling through the discharge of the tank or into discharge
equipment such as screw conveyors. When the GP-4 Yo-Yo sensor reaches this travel distance it will
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LBY180112 Rev. B
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