Installation, Operation and Service Manual LKP Series
© 2020 DynAmp, LLC Page 10
041736 N
4.4 INSTALLATION CONSIDERATIONS
In general, the Measuring Head can be installed vertically, horizontally, or in any
intermediate orientation. The LKP-45 can be mounted by using the busbar mounting kit
(purchased separately). Alternatively, optional mounting feet (standard on LKP-60 and
LKP-80) can be purchased that can simplify mounting the Measuring Head to the floor or a
platform. The prime considerations in all cases are as follows:
Read and follow the following considerations before mounting the Measuring Head.
A.) Choose a mounting location where the ambient air temperature does not exceed 55°C.
The standard Measuring Head is designed for indoor use only and should be kept away
from high heat and corrosive atmospheres. Protect the Measuring Head from direct
sunlight which causes the head temperature to rise, thus limiting the upper operating
range in some applications. If the Measuring Head is to be installed in a harsh
environment, please discuss protective measures with the factory.
B.) The Measuring Head must be protected from water. The LKP and LKB sensor
Measuring Head designs rated 15 kA and higher are tested to meet IP 64 when
manufactured, indicating protection from splashing water from any direction.
However, this rating is not a blanket approval for simply installing it outdoors
without additional water protection. The Measuring Heads are splash proof but
are not waterproof. Classification IP 64 acknowledges that some water may
penetrate the seal. Water that invades the sensor is likely to cause long-term
destruction. Consequently, it is necessary to provide some rain and snow
protective covering if the equipment is to be mounted outdoors or in the vicinity
of a sprinkler system.
C.) To minimize distortion of the magnetic field as seen by the Measuring Head, temporary
and final support members should be nonmagnetic (for example, aluminum beams,
struts or stranded cables, or wood, fiberglass, or Phenolic where appropriate). It is
recommended to keep large structural magnetic materials at least 2 meters distant from
the Measuring Head. For additional details, refer to Technical bulletin No. 987 titled
“Ferromagnetic Materials Near LKP or LKB Current Sensors.”
D.) The Measuring Head is designed to be supported from the bottom. The top half should
be attached to an anti-tipping brace. Never suspend the Measuring Head by the top
half alone. If the heads are to be mounted in a position other than vertical, each half of
the Measuring Head should be independently supported. Additional drilling of the
Measuring Head is NOT authorized, as damage may result.
E.) When mounted, the two head halves of the Measuring Head should be in the same
plane so no distortion of the part line will occur. No tension, twist, or excessive
pressure should be applied to the part line.
F.) The Measuring Head should be electrically insulated from the bus. A 6mm (1/4”)
minimum distance between the bus and window insulation should be maintained in dry,
clean air. More separation should be maintained if the bus voltage is greater than 1000
Volts or if the air quality is bad. This will insure electrical isolation of the head structure
from the bus. The aluminum Measuring Head structure is grounded via the cables
to the Metering Unit. Do not short between the Measuring Head structure and the
bus to prevent serious damage or injury. For that reason, always disconnect the
cables from the head prior to installation or maintenance. Touching both an energized
bus bar and grounded Measuring Head may result in electrical shock.
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