Nowadays, flowmeters are widely used in variety industrial fileds such as LPG, paint, oil refining, thermal power, etc. The reading value is used for controlling or adjusting the system. It is necessary to maintain the accuracy of those devices. Generally, those devices are calibrated periodically. Calibration is a comparision between the reading value of a device under test and that of the standard or reading value of a master device. The master devices must be already calibrated. |
