VEGA Capacitive electrodes EL 4 … 20 mA - Compact - Manual (Page 23)

Capacitive electrodes EL 4 … 20 mA - Compact 23
22652-EN-020809
Electrical connection
Qualified personnel
Instruments which are operated in Ex areas
must only be connected by qualified person-
nel. They have to note the installation regula-
tions and the attached type approval
certificates and conformity certificates.
If the capacitive electrodes are to be mounted
on vessels which must be protected against
the danger of ignition by lightning (acc. to
TRbF 100 no. 8, para.1), they have to be
equipped with the external overvoltage pro-
tection unit type B 62-36 G or the internal
overvoltage protection unit type CB 2-36.