Installation, Operation and Service Manual LKAT
2
Portable
© 2018 DynAmp, LLC Page 6
047312 A
• Extended Warranty
For permanently installed systems, the standard 2-year warranty can be extended in 2-year
increments. This must be ordered less than 6 months after the original LKAT system is
shipped.
2.2 ADDITIONAL MEASURING HEAD DETAIL
LKAT
2
Measuring Heads contain an arrangement of Hall Effect sensor ICs and signal
conditioning electronics. The tubular enclosure is constructed of flame retardant plastic with
an internal aluminum frame. Insulation from the bus is provided by the homogeneous
(sealed) construction of the head. In the event that the head enclosure components
become cracked, the bonding fails, or the weather-tight seal is broken in any way, a
replacement head must be substituted. The Measuring Head is not designed to be
repaired.
LKAT
2
Measuring Heads may be mounted on the bus bar using fiberglass angles positioned
on the corners of the bus bar and stainless steel bus bar mounting screws threaded into the
Measuring Head structure. Mounting hardware is supplied with each system. These
screws are adjusted to bus dimensions specified with each order. When properly installed,
the mounting hardware maintains the position of the Measuring Head in the event of
temperature fluctuation and / or bus vibration.
Each of the four head sides has a fixed cable coming from each elbow/corner with a circular
connector on the end. The primary four head sides are identified as A1, A2, B1 or B2.
These connect to the appropriate connector on one end of the ITC cable. The other end of
the ITC cable has two connectors labeled A and B which connect to connectors on the side
of the Metering Unit. Connecting head cable “A” to Metering Unit “B” will not result in
damage to the head or electronics, but may degrade the calibration accuracy of the system.
Additional head sides are labeled C1, C2, D1, D2, etc.
2.3 ADDITIONAL METERING UNIT DETAIL
The Metering Unit electronics are housed in an environmentally rugged enclosure. The
enclosure cover must remain closed during normal operation.
The outside of the Metering Unit enclosure includes four receptacles for external connection
to the Measuring Head, the Metering Unit measurement signal(s) and relay outputs, and the
input of mains power. When properly mated with the associated cable assembly, these
connections are also environmentally protected.
Internally, all LKAT
2
Metering Units include both a Power Supply pc board and a Main pc
board. These 2 PC boards are mounted to a steel chassis which is then mounted on a steel
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