201
7-0
2
28
Level Probe LGC2
Electrical Connection
6
Electrical Connection
6.1
Connecting the Device
6.1.1
Level probe and Pt100 Resistance Thermometer
Figure 6.1
Warning!
Danger to life from wrong electrical connection
Incorrect electrical connection of the device can compromise its function and its electrical
safety.
When using the measuring device in a hazardous area, the relevant national standards and
guidelines as well as the instruction manuals (SI) or installation or control drawings (ZD) must
be adhered to. All data relating to explosion protection can be found in separate
documentation which is available on request. This documentation is supplied with the devices
as standard, see chapter 1.3.
Warning!
Danger to life from wrong electrical connection
Incorrect electrical connection of the device can compromise its function and its electrical
safety.
• The supply voltage must match the supply voltage specified on the nameplate, see chapter
• Switch off the supply voltage before connecting the device.
• The cable must end in a dry room or a suitable terminal box. The IP66/IP67 terminal box
with GORE-TEX
®
filter is suitable for outdoor installation, see chapter 5.
• Connect the device in accordance with the following diagrams. Reverse polarity protection
is integrated into the device and the temperature head transmitter. Changing the polarities
will not result in the destruction of the devices.
• A suitable circuit breaker should be provided for the device in accordance with
IEC/EN 61010.
RD BK
RD BK
WH
YE
BU
BR
a
A
B
e
)
)
)
)
c
c
d
d
b
b
a
LGC
LGC
