Burkert 8110 Mode D'emploi page 13

Note safety instructions
Connection cable
Cable glands
LEVEL SWITCH 8110 • With extended status indication
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5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Connect only in the complete absence of line voltage
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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.
Use cable with round cross section. Depending on the plug
connection, you have to select the outer diameter of the cable
respectively so that the seal effect of the cable gland is ensured.
Valve plug ISO 4400, ø 4.5 ... 7 mm
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Valve plug ISO 4400 with IDC crimping technology, ø 5.5 ... 8 mm
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Use cable with a round wire cross section and tighten the cable gland.
When mounting outdoors, on cooled vessels or in moist areas in which
cleaning is made with steam or high pressure, the sealing of the cable
gland is very important.
5 Connecting to power supply
13