Vega VEGABAR 38 User Manual

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5 Connecting to power supply
VEGABAR 39 • Three-wire 1 x transistor or 4 … 20 mA
57536-EN-200831
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
•
Carryoutelectricalconnectionbytrained,qualiedpersonnel
authorised by the plant operator
•
If overvoltage surges are expected, overvoltage arresters should
be installed
Warning:
Only connect or disconnect in de-energized state.
Thedataforpowersupplyarespeciedinchapter"Technical data".
Note:
Power the instrument via an energy-limited circuit (power max. 100 W)
acc. to IEC 61010-1, e.g.
•
Class 2 power supply unit (acc. to UL1310)
•
SELV power supply unit (safety extra-low voltage) with suitable
internal or external limitation of the output current
Keepinmindthefollowingadditionalfactorsthatinuencetheoperat-
ing voltage:
•
Lower output voltage of the power supply unit under nominal load
(e.g. with a sensor current of 20.5 mA or 22 mA in case of fault)
•
Inuenceofadditionalinstrumentsinthecircuit(seeloadvaluesin
chapter " Technical data")
Use cable with round cross section. Depending on the plug connec-
tion, you have to select the outer diameter of the cable respectively so
thatthesealeectofthecableglandisensured.
Depending on the connection method or signal output, the device is
connected with standard two, three or four-wire cable without shield-
ing.
5.2 Connection procedure
This plug connection requires a complete confectioned cable with
counter plug.
Proceed as follows:
1. Loosen the screw on the rear of the plug connector
2. Remove the plug connector and seal from VEGABAR 39
3. Remove the plug insert from the plug housing
Safety instructions
Voltage supply
Connection cable
M12 x 1 plug
Plug according to
ISO 4400

Vega VEGABAR 38 Specifications

General

Brand	Vega
Model	VEGABAR 38
Category	Accessories
Language	English