Installation, Operation and Service Manual
LKP Series
1. SAFETY
1-1. OVERVIEW
This equipment is designed to be connected to hazardous electric voltages. Ignoring the
installation precautions and warnings can result in severe personal injury or equipment
damage. Also, the equipment may be heavy and require special handling procedures to
ensure the safety of both personnel and equipment itself. The following are general
guidelines that should be followed when installing, operation and servicing the meter unit
and head.
•
All installation, maintenance and service must be performed by qualified technicians
who are familiar with the warnings and instructions of this manual.
•
Always follow all local and plant safety procedures.
•
These instructions apply only to retrofit kits installed on standard systems as originally
supplied by Halmar Electronics or DynAmp. Customer is responsible to verify that the
units are standard and do not have non-standard, customer modifications installed.
Before installing the upgrade kit, document any modifications and contact DynAmp, LLC
Service Department for further written instructions to deal with the non-standard
circumstances.
•
The installer is responsible for any damages resulting from improper installation of
upgrade kit.
•
The enclosure doors must remain closed at all times during operation to ensure safety
of personnel. A set of keys is provided for locking the doors. Only authorized
personnel or technicians should be allowed to open and service the unit.
•
Make sure that the cables are disconnected from the head during installation.
•
Replace fuses with correct type, size and value. All channel fuses are Type MDA time
delay fuses 3AB style, 1/4” x 1-1/4” (6.3mm x 32mm). 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.
•
Service must be performed by qualified technicians only. If use of an oscilloscope
becomes necessary during servicing, the scope must be floating and not grounded.
The meter unit is isolated from the mains via the power transformers. If a grounded
scope is used, a hazardous condition is created since current will flow through the
probe to ground.
•
If the installation is to be made on a "live" bus, the measuring head cables must be
disconnected from the head. A condition hazardous to the measuring head and any
person handling un-insulated cable-lead terminals will result if metal parts of the head
contact the bus, or sudden changes in the bus current occur.
•
Bus current must be zero when taking resistance measurements.
•
Use wire and fuse (slow-blow) size adequate for the maximum burden of 20 VA/kA of
measured current. The wire should have an insulation rating of 1000Vac and 80 - 105°
C temperature rating.
© 2011 DynAmp, LLC
Page 1
041837 H
