4 Wiring PROline Promag 10
44 Endress+Hauser
4.3.2 Special cases
Metal, ungrounded piping
In order to prevent outside influences on measurement, it is advisable to use ground
cables to connect each sensor flange to its corresponding pipe flange and ground the
flanges. Connect the transmitter or sensor connection housing, as applicable, to ground
potential by means of the ground terminal provided for the purpose (Fig. 31).
"
Caution!
Please also pay special attention to company-internal grounding concepts.
!
Note!
The ground cable for flange-to-flange connections can be ordered as an accessory
from E+H → Page 64.
• DN ≤ 300: the ground cable is in direct connection with the conductive flange coating
and is secured by the flange screws.
• DN ≥ 350: the ground cable is in direct connection with the metal transport bracket.
Fig. 31: Potential equalisation with equalising currents in metallic, non-grounded piping systems.
F06-10xxxxxx-04-xx-xx-xx-001
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