Double Pan Balance Parts And Functions
The triple beam balance is a measuring instrument comprising a beam supported on a fulcrum.
Double pan balance parts and functions. The balance must be arrested pan support and beam sta tionary while weights or material are placed on or removed from a scale pan. On one side of this beam is a pan on which the object to be measured is placed while on the other side the beam is split into three parallel beams each carrying a known weight and together culminating into a pointer pointing to a fixed scale. 2019 the jim henson company. This scale can be used to determine the mass of an object.
Triple beam balance definition. Pan size list price. The outer plastic shell encases an inner cast aluminum shell with two chambers to separately enclose the weighing unit and electronic boards. The balance also balance scale beam balance and laboratory balance was the first mass measuring instrument invented.
As a general rule the balance should be completely arrested while making any changes that move any parts of the instrument. First the pan is where you place the sample whose. A triple beam balance is a device used to measure the mass of an object and all triple beam balances will have many of the same critical parts. The measuring pan of an analytical balance 0 1 mg or better is inside a transparent enclosure with doors so that dust does not collect and so any air currents in the room do not affect the balance s operation.
Characters and elements are trademarks of the jim henson company. The parts of a double pan balance are the two weighing pans the pointer rider or sliding mass and rider arm. All quantitative analyses is the analytical balance used for the accurate weighing of samples and precipitates. This enclosure is often called a draft shield.
In its traditional form it consists of a pivoted horizontal lever with arms of equal length the beam and a weighing pan 7 suspended from each arm hence the plural name scales for a weighing instrument. In microanalyses the balance must be about 1 000 times more. For usual analytical work the balance should be able to determine differences in mass of 0 1 milligram about 0 000004 ounce. An analytical balance or lab balance is a class of balance designed to measure small mass in the sub milligram range.