VEGA VEGASWING 83 fail safe and signal conditioning instrument VEGATOR 526 Ex - Manual (Page 18)

18 VEGASWING 81 W5 Ex.C, 83 W5 Ex.C fail safe
Two-wire output (SWING E86 Ex)
For connection to a signal conditioning
instrument VEGATOR 526␣ Ex
Voltage supply via the connected signal
conditioning instrument VEGATOR (for further
information see technical data)
When VEGASWING is used in Ex-area or as
part of an overfill protection acc. to WHG, note
the regulations of the conformity certificates,
type approvals and the general construction
approval, see “1.2 Approvals“.
Electrical connection
3 Electrical connection
3.1 VEGASWING
Danger
Before starting connection work, switch off the
power supply.
Connect mains voltage acc. to the following
connection diagrams.
Note
Generally use screened cable. The screening
of the cable must be earthed at the sensor
side (VEGASWING) via terminal 3.
Overvoltage arresters are recommended in
case of danger of overvoltages. For
connection note the operating instruction of
the overvoltage arresters.
Generally connect VEGASWING to vessel
ground (PA) or in case of plastic vessels to
the next earth potential. Laterally on the
hexagon of the mounting boss or flange there
is a thread (screw M4␣ x␣ 5). This connection is
used to drain off electrostatic charges.
Normally in case of metal vessels, the sensor
has already connection to vessel earth via the
mechanical connection.
For Ex-applications the mounting
regulations for hazardous areas must
be noted.