1. Before installing the instrument, the process pipeline should be purged to prevent ferromagnetic substances retained in the pipeline from adhering to the instrument, affecting the performance of the instrument or even damaging the instrument. If unavoidable, a magnetic filter should be installed at the inlet of the instrument. The instrument itself does not participate in air sweeping before production to avoid damage to the instrument.
2. Before installing the instrument into the process pipeline, check whether it is damaged, open the case and remove the filling that fixes the pointer.
3. The installation form of the instrument is divided into vertical installation and horizontal installation. If it is installed vertically, the angle between the center vertical line of the instrument and the plumb line should be ensured to be less than 2°; if it is installed horizontally, the angle between the horizontal center line of the instrument and the plumb line should be ensured. The angle between the horizontal lines is less than 2°.
4. The upstream and downstream pipes of the instrument should have the same diameter as the instrument. The connecting flange or thread should match the flange and thread of the instrument. The length of the upstream straight pipe section of the instrument should be guaranteed to be 5 times the nominal diameter of the instrument. The length of the downstream straight pipe section should be greater than or equal to 250mm.
5. Since the instrument transmits signals through magnetic coupling, in order to ensure the performance of the instrument, no ferromagnetic substances are allowed to be present at least 10cm around the installation.
6. The instrument that measures gas is calibrated at a specific pressure. If the gas is directly discharged to the atmosphere at the outlet of the instrument, a pressure drop will occur at the float and cause data distortion. If this is the case, a valve should be installed at the outlet of the instrument.
7. Instruments installed in pipelines should not be subject to stress. The entrance and exit of the instrument should be supported by appropriate pipelines to keep the instrument in a state of minimum stress.
8. Be especially careful when installing PTFE (polytetrafluoroethylene)-lined instruments. Since PTFE will deform under pressure, do not overtighten the flange nut.
9. When installing instruments with LCD displays, try to avoid direct sunlight on the display to reduce the service life of the LCD.
10. When measuring low-temperature media, the jacket type must be selected.
