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5 Installation - Special equipment
Safety instructions
Connection cable
Electrical connection
1
2
Fig. 23: Connection terminal housing of the ON/OFF position switch
1
ON/OFF position switch for switch position " ON" (terminals 1 and 2)
2
ON/OFF position switch for switch position " OFF" (terminals 3 and 4)
Switching amplifier
32
Always keep in mind the following safety instructions:
•
Connect only in the complete absence of line voltage
•
If overvoltage surges are expected, overvoltage arresters should
be installed
•
Only for use in non-hazardous areas
The instrument is connected with standard two-wire cable without
shielding.
Use cable with round cross-section. A cable outer diameter of
5 ... 10 mm (0.2 ... 0.39 in) ensures the seal effect of the cable gland.
If you are using cable with a different diameter or cross-section,
exchange the seal or use a suitable cable gland.
The ON/OFF position switches are already mounting and connected
in the terminal housing to the terminals.
Connect the ON/OFF position switches according to the following
diagrams. Take note of the general installation regulations. As a rule,
connect VEGASOURCE 82 to vessel ground (PA), or in case of plas-
tic vessels, to the next ground potential.
The data for power supply are specified in chapter " Technical data".
br
bl
br
bl
For signal processing you need a NAMUR switching amplifier. We
recommend the double channel switching amplifier VEGATOR 112.
1+
2-
3+
4-
VEGASOURCE 82 • Source holder
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