Installation, Operation and Service Manual LKP Series
© 2020 DynAmp, LLC Page xii
041736 N
• An external circuit breaker or fuse with proper rating is required for branch circuit
protection when wiring the main circuit to this Metering Unit. Each Metering Unit
must have its own breaker. Use a wire and breaker or fuse (time-delay) sized
adequately for the maximum burden of 20 VA/kA of measured current. The wire
should have an insulation rating of 600Vac and 80°C minimum temperature rating.
• Replace fuses with correct type, size and value. All channel fuses are Time lag
MDA (or MDL) style 3AB (or 3AG) ¼” by 1 ¼” (6.3 mm x 32mm), 250 Volt. Refer to
the servicing instructions or spare parts list for more information on replacement
fuses. Do not bypass the fuses or modify the electronics. Disconnect power to the
System before replacing fuses. Failure to follow these instructions will result in
intermittent operation and premature failure and will void the warranty.
• Metering Unit enclosure doors and module covers must be present and remain
closed at all times during operation to insure safety of personnel. A set of keys is
provided for locking enclosure doors. Only authorized personnel or technicians
should be permitted to open and service the unit.
• Bus current must be zero when taking resistance measurements.
• Use of the equipment in a manner not specified by the manufacturer can impair the
protection provided within.
DynAmp, LLC does not assume liability for the customer’s failure to comply with the rules
and requirements provided in this manual.
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