BERTHOLD TECHNOLOGIES LB 480 - Electrical Installation; 3.1 Cable Entries

SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
2 – 217
Volume 2 3 Electrical Installation
2
3 Electrical Installation
Installation should only be performed by a qualified electrician
(competent person).
The safe operation of the detector is only guaranteed you if follow
the safety instructions described in Volume 1, chapter 6.
3.1 Cable Entries
Depending on the model, the detectors are provided either with M20
(ATEX) or with ½" NPT cable entries (FM/CSA), through which the
electrical cables are be installed according to regulations. Conduits
or cable glands can be screwed into the cable entries. They have to
be licensed for the respective type of protection and have to be
installed carefully in accordance with regulations! Cables and cable
conduits have to be aligned such that water cannot flow into the
bushing along the cable. Also make sure that all cables that are
installed are not subject to abrasion, strain or kinks.
Fig. 3-1 Detector housing open - top view
Cable entries that are not used must have dummy plugs installed.
1
PE
2
17
18
19
20
PE
Cable entries M20
Cable entries that are not used must have
dummy plugs installed.
View with the cover
removed
power supply
Equipotential busbar
provided by customer
Signal line
The shield must be con-
nected to terminal PE.
Insulate the shielding braid
using a shrink tubing or
other suitable insulating
material.