Fairbanks 2800 Series Intrinsically Safe Instrument - Manual (Page 24)

Section 2: Operation
01/12 24 50647 Rev. 9
2.3.2. INSTRUMENT WEIGHING FUNCTIONS
GROSS WEIGHT
Gross weight is the total weight of a weighment.
─ This includes any primary and incidental materials comprising the total
weighment.
TARE WEIGHT VALUE + NET WEIGHT VALUE = GROSS WEIGHT
A Working Example
A can of house paint is an object to be weighed. The can is the incidental material
used to hold the primary material, paint, and the label is incidental material used to
identify the paint. All the incidental materials summed together comprise the Tare
weight. All the primary materials weights summed together comprise the Net weight;
in this case pigment, base, and solvent. The object is made up of incidental
materials, can and label, and primary material, paint. Summed together, the complete
object is the Gross weight.
GROSS = NET + TARE
TARE = GROSS – NET
NET = GROSS – TARE
NET = GROSS - TARE is particularly important because it is what a scale uses
to compute net weights in the NET WEIGHING mode.
Gross Weight is a function of the total weight on the platform from the zero reference.
Tare Weight is always an operator defined value.