KROHNE BM 100A EN - Manual (Page 8)

8 Installation and operating instructions BM 100 A
Nozzles extending into tank
Caution:
Do not use nozzles that extend into the tank. This will block the emitted pulse.
Process connection
For the gauge to make accurate measurements:
• the tank process connection must be level.
• ensure a good fit with the gauge process connection
• the tank roof should not deform under the weight of the gauge
Discontinuities that influence the probe’s EM (electromagnetic) field
1 Agitator
2 Support beam perpendicular to the pulse
direction
3 Abrupt changes in tank cross section
4 Heating tubes
5 Alternative solution: reference chamber -
electromagnetic field is contained within
chamber. See also notes in section.
6 Gauge electromagnetic field :
Any intruding metallic object will be
detected in this zone if perpendicular to
the emitted pulse direction.
= Do not fit the process connection near to these objects.