How accurate turbine meters can reach them?

The turbine meters can achieve an accuracy of less than 0.2% if the values ​​of the viscosity is maintained in a narrow margin. However, measurement error tends to be higher for the lower end of the field of fluid velocity values. If the viscosity deviates from the calibration conditions, the effects on the accuracy of the measurement are significant and must be re-adjust the calibration factor.

Are turbine meters can be cleaned in running conditions (CIP-cleaning functions in progress or cleaning-up-/ SIP-sterilization and sterilization in progress in progress)?

Only a few special models and certificates should be used in such applications. Sprinkle the line with steam or compressed air can communicate an unacceptably high rate to the rotor that can be harmful. In the best cases, this will shorten the operating life of the equipment, at worst, the team can get stuck.

How often must pass turbine meters and routine inspections to be calibrated?

All new turbine meters are calibrated on a test bench of great precision. Custody Transfer applications requiring high accuracy, the sys-tem generally available in addition to an in situ calibration. In the chemical industry applications, these counters should be calibrated at a frequency of at least twice a year or even higher. The frequency will depend in each case the level of accuracy required and the manufacturer's recommendations. Once a year should be a routine maintenance. These routine tasks can include removing the meter from the line and and check that the rotor turns freely, remove the dregs of sediment that could be inside the counter, and wipe all surfaces. Pollution in the pivots is usually the most common cause of a faulty measurement. It is therefore necessary to pay special attention to this aspect.

Are turbine meters can be used converged corrosive?

Yes, if the models used are special or have been specially designed for the particular application. The range available in the market includes counters made of plastics (PVDF, PTFE, etc.) Suitable for applications with highly corrosive liquids and gases.

What factors should be considered in the installation?

The turbine meters are easily affected by the effects of vortices or disturbing velocity profiles from accessories that may be upstream. To remove the fluid flow disturbances of this nature are necessary sections of very long straight entrance and / or flow conditioners. Many turbine meters rectifiers are supplied with accessories that allow input sections correspondingly shorter. As always, it is important to follow the instructions specified by the manufacturer.

Can you use a turbine meter to measure mass flow?

Most turbine meters are purely volumetric. Some special models are dual rotor directly measure mass flow. However, in most cases will have to convert volume flow figures obtained the corresponding value of mass flow from the fluid density and / or pressure and temperature readings.