Installation on field
Mounting position
Pipes must be fully filled with liquids. It is essential that pipes remain fully filled at all times, otherwise, flow rate indications may be affected, and measurement errors may be caused.
Avoid air bubbles. If air bubbles enter a measurement pipe, flow rate indications may be affected and measurement errors may be caused.
If the electrodes are vertical to the ground, air bubbles near the top of precipitates at the bottom may cause measurement error. Ensure that the terminal box is mounted above the pipe to prevent water from entering them.
Avoid all pipe locations where the flow is pulsating, such as in the outlet side of piston or diaphragm pumps.
Avoid locations near equipment producing electrical interference such as electric motors, transformers, variable frequency, etc.
Install the meter with enough space for future access to maintenance purposes.
The magnetic meter isolating liner, whether it is PTFE or Rubber, is not intended to be used as a gasket material. Standard gaskets should be installed to ensure a proper hydraulic seal.
When installing the gaskets, make sure they are properly centered to avoid flow restriction or turbulence.
Do not use graphite or any electrically conductive sealing compound to hold the gaskets in place during installation. This could affect the reading accuracy of the measuring signal.
Precaution for direct sunshine and rain when the meter is installed outside.
Required lengths of straight pipe
For optimum accuracy performance, it is required to provide sufficient inlet and outlet straight pipe runs. An equivalent to 3 diameters of straight pipe is required on the inlet side, and 2 diameters on the outlet side. There are no special requirements for standard concentric pipe reducers. See diagram 1 for required straight runs when there is an altering device.
When the meter contains removable cover plates, leave the cover plate installed unless accessory modules specify removal. Don’t remove the cover plates when the meter is powered, or electrical shock and explosion hazard can be caused.