Hardy HI 2151/30WC Single-Scale Controller - Manual (Page 10)

Chapter 1 - Overview
1-3
or can be entered as a numeric value via the keypad on the front panel
of the HI 2151WC. This new tare value is the reference point for Net
Weight.
TV = G - N
TV = Tare Value (weight)
G = Gross Weight
N = Net Weight