Keterangan :

The range of sensors is extensive, so widely differing sets of requirements can besatisfied. Clamp-on sensors retrofit to the outside of existing pipes, e.g. for verifying other meters or for temporary flow measurement ( accuracy: typically ± 2% o.r.) . Inline sensors for direct installation in the pipe meet higher accuracy requirements ( ± 0.3 to 0.5% o.r.) .