KROHNE ALTOSONIC V Installation EN - Manual (Page 14)

14 www.krohne.com 04/2012
ALTOSONIC V
ELECTRICAL INSTALLATION
3
 It is good practice to use shielded twisted pair solutions for I/O wiring.
 Respect national codes like NEC for the US and CEC for Canada
Grounding
Instrument must be properly grounded to avoid personnel shock hazard!
Please follow local standards and recommendations. The flowmeter must normally be
grounded via the protective conductor PE incorporated in the power supply cable. Also an
equipotential bonding wire (  4mm
2 ) between the converter housing and the primary head
must be present due to hazardous area regulations. Refer to the supplied electrical wiring
figure.
Grounding of Flow Converter UFC-V and Flow Sensor UFS-V
PE
Protective conductor incorporated in power supply cable
Coax
Sensor cables, factory supplied
Bonding wire
Connection cable, cross-section  4 mm
2 (10 AGW) Cu, equipped with M6 cable lugs, customer
supplied
3.3 Power connection
Note: the information is given on the type plate of the instrument (voltage, frequency etc.)!
Consult the relevant national standard code for electrical installations and for the installation of
electrical apparatus in hazardous areas (e.g. particularly VDE0100 and VDE 0165).
All cables leading into the connection box are not intrinsically safe and must be connected in
conformity with the relevant approval; please refer to the supplied drawings and hazardous
area certificates. The PE/FE protective ground conductor for supply power shall be connected to
the PE/FE-terminal in the signal converter housing.