Triple Beam Balance
The triple beam balance is an instrument used to measure mass precisely. Such devices typically have a reading error of ±0.05 grams. Its name refers to its three beams, where the middle beam is the largest, the far beam of medium size, and the front beam the smallest.
The difference in size of the beams indicates the difference in weights and reading scale that each beam measures. Typically, the reading scale of the middle beam reads in 100-gram increments, the far beam in 10 gr increments, and the front beam can read from 0 to 10 grams.
The triple beam balance can be used to measure mass directly from the objects, find mass by difference for liquid, and measure out substances.
The parts of triple beam balance are identified as: Weighing pan, Base, Beams, Riders, Pointers, Zero adjustment knob.