Installation, Operation and Service Manual LKP Series
© 2020 DynAmp, LLC Page 3
041736 N
2. PRODUCT DESCRIPTION
2.1 SYSTEM OVERVIEW
The DynAmp, LLC LKP Series 6 & 8 channel are systems for accurately measuring direct
current in a bus. The Models in this series are: LKP-45 and LKP-60 (6 channel), and LKP-
80 (8 channel). Each model consists of a two-piece Measuring Head, a Metering Unit, and
two multi-conductor cables. For the sake of simplicity throughout this manual, the LKP 6
and 8 channel Metering Units might be referred to as the LKP system, or LKP metering
system.
2.2 ADDITIONAL MEASURING HEAD DETAIL
A magnetic core encircles the bus passing through the center of the Measuring Head.
Magnetic null detectors are mounted in air gaps in the core. Each null detector is flanked
by coils located on the magnetic core.
The Measuring Heads are constructed of cast aluminum with a tough epoxy finish,
insulation from the bus being provided by a 3/8 in. (9.5mm) layer of high-grade epoxy. The
Measuring Head halves are easily joined around the bus by use of 8 bolts.
The LKP-60 and LKP-80 Measuring Heads are provided with mounting feet as standard
equipment. The mounting feet facilitate the mounting of the Measuring Heads vertically on
the floor or on a platform. The LKP-45 can be provided with mounting feet or with a bus
bar mounting kit (both are optional).
2.3 ADDITIONAL METERING UNIT DETAIL
The Metering Unit is housed in a standard NEMA 12 enclosure (IP54). In addition to the
electronic circuitry (housed within two modular units), the Metering Unit contains terminals
for all external connections. The Metering Unit requires 120/240 Vac (other voltages
available), 50 or 60 Hz power. Burden on the supply circuit will not exceed 2400 VA. A
thermo-magnetic circuit breaker is mounted on the inside of the enclosure and serves as
the power on-off control.
2.4 INTERCONNECTION CABLE DETAIL
A standard 33-foot (10 meter) interconnecting cable is supplied with each system (longer
cable lengths are available - consult the factory for details). Each of the individual
conductors is tagged with a numbered label corresponding to a terminal block connection,
providing an easy hookup to the Metering Unit. Keyed connectors are provided on the
Measuring Head side of the cables to ensure correct hookup.
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