At the end of the three beams is a pointer that lines up with a scale on the base of the balance. To use a triple beam balance, place an object on the pan and adjust the counterweights until the pointer is balanced at the zero line. Then determine the mass by looking at the position of each counterweight.Click to see full answer. In this regard, how do you use a triple beam balance? Triple Beam Balance The triple beam balance is used to measure masses very precisely; the reading error is 0.05 gram. With the pan empty, move the three sliders on the three beams to their leftmost positions, so that the balance reads zero. Once the balance has been calibrated, place the object to be measured on the pan. Subsequently, question is, why is a triple beam balance used to measure mass? Mass is the amount of matter an object has. We often use a triple-balance beam to measure mass. A triple-beam balance gets its name because it has three beams that allow you to move known masses along the beam. Scientists need balances that can measure very small amounts of mass. Considering this, what does a triple beam balance look like? The triple beam balance is an instrument used to measure mass very precisely. The device has reading error of +/- 0.05 gram. The name refers to the three beams including the middle beam which is the largest size, the far beam which is the medium size, and the front beam which is the smallest size.How many decimal places should be recorded when weighing using the triple beam balance?The mass of an object weighed on a triple beam balance (precision ± 0.1g) is found to be 23.6 g. This quantity contains 3 significant figures, i.e., three experimentally meaningful digits.