Vega VEGAKON 61 Operating instructions manual - page 11
11
5 Connecting to power supply
VEGAKON 61 • Transistor (NPN/PNP)
32648-EN-170815
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
•
The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
•
Alwaysswitchoffpowersupply,beforeconnectingordisconnect-
ing the instrument.
Connect the voltage supply according to the following diagrams.
Take note of the general installation regulations. As a rule, connect
VEGAKON 61 to vessel ground (PA), or in case of plastic vessels, to
the next ground potential. On the side of the instrument housing there
isagroundterminal.Thisconnectionservestodrainoffelectrostatic
charges.
Thedataforpowersupplyarespecifiedinchapter"Technical data".
The instrument is connected with standard two-wire cable without
screen. If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas, screened cable should
be used.
Make sure that the cable used has the required temperature resist-
anceandfiresafetyformax.occurringambienttemperature
Use cable with round cross-section. A cable outer diameter of
5…9mm(0.2…0.35in)ensuresthesealeffectofthecablegland.
Ifyouareusingcablewithadifferentdiameterorcross-section,
exchange the seal or use a suitable cable gland.
5.2 Connection instructions
Danger:
Switchoffpowersupplybeforestartingconnectionwork.
Connect mains voltage according to the connection diagrams.
Note safety instructions
Voltage supply
Connection cable