If the scale marks 100 less than, is necessary to unscrew the screw. Soon the process is repeated until it is fit the balance (to fit in zero and sensitivity). 4. To confirm the brake of the subject of gossip. This one is mounted on a spiral axis that, when the balance is blocked, is called on the subject of gossip to avoid that it oscillates. In case of misalignment the axis is due to rotate smoothly, until the distance between the brake and the subject of gossip is zero when the balance is blocked. Maintenance of the mechanical balance The maintenance of the mechanical balances is limited the following routines: Frequency: Daily 1. To verify the level.

2. To verify the zero graduation. 3. To verify the sensitivity adjustment. 4. To clean the subject of gossip of pesaje. Frequency: Annual 1.

To calibrate the balance and to document the process. 2. Desensamblar and to clean the component interns. A specialized company/signature is due to follow the process defined by the manufacturer, or to be contracted for the effect. Electronic balances The electronic balances involve three basic elements: 1. The object to be heavy that is placed on the subject of gossip of pesaje exerts a pressure that is distributed of random form on the surface of the subject of gossip. Of, by means of a transference mechanism handles, supports, guides, concentrates the load of the weight in a simple force there F that it can be measured. F =? P? to the integral of the pressure on the area allows to calculate the force. 2. A transducer of measurement, known with the name of cell of load, produces a signal of proportional exit to the load force, in the form of changes in the voltage or of frequency. 3. An electronic circuit analogous digitalis that finally presents/displays the result of pesaje in digital form.