User’s & Technical Manual –
LEVEL TRANSMITTER LTR7000
GELEC
Industrial Electronics
PAGE
17
9.
ELECTRICAL SECTION
ELECTRICAL CONNECTIONS
The LTR7000 is equipped with a 6-pole terminal block.
The terminal block is manufactured to provide resistance to stress, corrosion, cracking,
electrolytic corrosion and screw loosening in case of vibrations. This way, conductor
connections are maintained reliable and maintenance-free in harsh industrial environment.
The conductor’s stripping length should be
max
6 mm
, with its cross-section within the
following ranges (depending on type). The recommended tightening torque is max 0.2 Nm.
Clamp all types of copper cables without pre-treatment. Do not solder the conductors, as it
affects the proper connection quality. Two conductors with the same cross section make
contact safely in the clamping parts. If necessary, copper ferrules can be used as a
protection against splicing when stranded conductors are wired. In general terms, ensure
that you are having reliable mechanical connection and electrical contact.
CABLE GLAND
At the bottom side of the transmitter enclosure, there is a
M16x1.5mm
cable gland, for
connection cables with outer diameter Ø4
-10mm. Ensure that you have a firm and reliable
final assembly, in order to maintain the IP rating of the enclosure. Do not install cable
glands whilst circuits are live. Similarly, following energizing of the electrical circuits, cable
glands should not be dismantled or opened until the circuit has been safely de-energized.
Rigid solid / flexible stranded :
0.34 - 1.5 mm
2
AWG :
22 - 16
