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DynAmp LKP Series Installation, Operation And Service Manual

4 channel oem, 4 channel
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MODEL LKP SERIES (4 CHANNEL) OEM
DIRECT CURRENT METERING SYSTEMS
Installation, Operation and Service Manual
DynAmp, LLC
Manual Item No. 041593
3735 Gantz Road
Grove City, Ohio 43123 USA
Rev. O
Phone +1 614.871.6900
Fax +1 614.871.6910
www.dynamp.com
help@dynamp.com

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Summary of Contents for DynAmp LKP Series

  • Page 1 MODEL LKP SERIES (4 CHANNEL) OEM DIRECT CURRENT METERING SYSTEMS Installation, Operation and Service Manual Manual Item No. 041593 Rev. O DynAmp, LLC 3735 Gantz Road Phone +1 614.871.6900 www.dynamp.com Grove City, Ohio 43123 USA Fax +1 614.871.6910 help@dynamp.com...
  • Page 2 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page ii 041593O...

  • Page 3: Dynamp, Llc Warranty

    (18) months from the date of shipment. Extended warranties may be available for purchase for some products. Extended warranties are provided on a serial number by serial number basis as noted on DynAmp’s original invoice and/or packing list.
  • Page 4 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page iv 041593O...

  • Page 5: Table Of Contents

    DYNAMP, LLC WARRANTY ________________________________________________________ III TABLE OF CONTENTS _____________________________________________________________ V HAZARD WARNING! _____________________________________________________________ VII SAFETY ________________________________________________________________________ IX DYNAMP, LLC CUSTOMER SUPPORT & SERVICE ASSISTANCE ________________________ XI MANUAL REVISIONS ____________________________________________________________ XIII 1. HANDLING AND STORAGE ....................... 1 2. PRODUCT DESCRIPTION ......................3...
  • Page 6 Figure 4.4 Magnetic Centering ......................17 Figure 5.1 Magnetic Null Detector Diagram ..................19 Table 3.1 LKP Series 4 Channel OEM Specifications ................5 Table 3.2 Typical Error At Zero Bus Current ..................6 Table 4.1 Measuring Head Resistance Chart: LKP-6 & LKP-12 ............13 Table 4.2 Measuring Head Resistance Chart: LKP-15 &...

  • Page 7: Hazard Warning

    Use of the equipment in a manner not specified by the manufacturer can impair the protection provided within. GENERAL DynAmp does not assume liability for the customer’s failure to comply with the rules and requirements provided in this manual. This equipment is designed to be connected to hazardous electric voltages.
  • Page 8 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page viii 041593O...

  • Page 9: Safety

    Installation, Operation and Service Manual LKP Series 4 Channel OEM SAFETY 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 is heavy and requires special handling procedures to ensure the safety of both personnel and equipment itself.
  • Page 10 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. © 2019 DynAmp, LLC...

  • Page 11: Dynamp, Llc Customer Support & Service Assistance

    Installation, Operation and Service Manual LKP Series 4 Channel OEM DYNAMP, LLC CUSTOMER SUPPORT & SERVICE ASSISTANCE For further assistance, contact DynAmp Customer Support at: Americas: Telephone: +1 614.871.6900 Fax: +1 614.871.6910 8:00 AM to 5:00 PM USA Eastern Time From first Sunday in November to second Sunday in March –...
  • Page 12 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page xii 041593O...

  • Page 13: Manual Revisions

    Installation, Operation and Service Manual LKP Series 4 Channel OEM MANUAL REVISIONS Page Change Reason For Revision Date Rev New 06/97 Front, Rev A Warranty Statement, Resistance Chart, Spare Parts 01/98 10,26,27 List, Drawings iii, 27 Rev A1 Table of contents, Communication Procedures...
  • Page 14 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page xiv 041593O...

  • Page 15: Handling And Storage

    -40 to 70°C -40 to 158°F Storage Humidity: Maximum 85%, non-condensing DynAmp, LLC does not assume liability for the customer’s failure to comply with handling and storage requirements. For further assistance, contact DynAmp customer support. © 2019 DynAmp, LLC Page 1...
  • Page 16 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page 2 041593O...

  • Page 17: Product Description

    The DynAmp, LLC LKP Series 4 Channel OEM is a system for accurately measuring direct current in a bus. Each model of the LKP Series 4 Channel OEM consists of a two-piece Measuring Head, a Metering Unit, and one or two multi-conductor cable depending on the model.

  • Page 18: Electrical

    Installation, Operation and Service Manual LKP Series 4 Channel OEM ELECTRICAL Four outputs are provided by the system: a. A current output of 1 Adc per 5 kA of bus current, at TB1-30 and TB1-29. Maximum allowable voltage drop across the terminals is 15 Vdc at the maximum current output of the bus.

  • Page 19: Specifications

    Voltage output, LKP-1, LKP-30 10mv per kA of bus current Contingent upon DynAmp, LLC computer analysis of bus system. The LKP systems are factory-set for 50 or 60 Hz, per customer order. To operate a LKP system at a different line frequency than was ordered, move jumper JP1 (located on the control board inside each module) to the desired frequency.
  • Page 20 LKP Series 4 Channel OEM Table 3.1 LKP Series 4 Channel OEM Specifications, cont’d. PHYSICAL LKP Series 4 Channel OEM Overall Dimensions, in. (mm): LKP Metering Unit (all) 14 (356) x 7.75 (197) x 7.625 (194) LKP-6 Measuring Head 9.25 (235) x 10.25 (260.5) LKP-12 Measuring Head 14.38 (365) x 17.75 (374.6)

  • Page 21: Installation

    4. INSTALLATION HANDLING PRECAUTIONS Even though the LKP Series systems are large and rugged, they should be handled with the same care as any precision measuring instrument. Larger Measuring Heads are quite heavy, and adequate handling equipment must be available. Severe jolts or bumps to the Measuring Head or Metering Unit may cause movement of internal parts, and possibly a malfunction.
  • Page 22 Installation, Operation and Service Manual LKP Series 4 Channel OEM a = maximum aperture dimension The Measuring Head should be a minimum distance of 2a from another bus carrying equal or less current. If the other bus carries higher current, the distance should be greater, e.g., 3a.

  • Page 23: Measuring Head Installation

    Installation, Operation and Service Manual LKP Series 4 Channel OEM MEASURING HEAD INSTALLATION Before actually installing the Measuring Head on the bus, the head may be checked for damage to the Measuring Head and performing a head resistance check per Table 4.1 first, if desired.

  • Page 24: Installation Considerations

    Installation, Operation and Service Manual LKP Series 4 Channel OEM (provided). Tighten the bolts until snug. Do not over-tighten. Since the bolts are stainless steel, it is recommended to lubricate the bolts before installation to prevent them from sticking or seizing. A dry “Moly”...
  • Page 25 Installation, Operation and Service Manual LKP Series 4 Channel OEM 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.

  • Page 26: Installation Precautions (Live Bus)

    Warning : Keep all exposed head cable leads from touching the bus, ground, or any support structures. Consult with DynAmp about using a shorting plug at each connector. INSTALLATION PRECAUTIONS (LIVE BUS) If the unit is to be installed on a live bus, the following precautionary measures must be taken before installing the Measuring Head: a.
  • Page 27 Installation, Operation and Service Manual LKP Series 4 Channel OEM Resistance values shown in the tables below are for measurements taken with the cables disconnected from the Metering Unit. This method is more effective in identifying internal damage in the Measuring Head and cables that might occur during shipment.

  • Page 28: Metering Unit Installation

    Installation, Operation and Service Manual LKP Series 4 Channel OEM METERING UNIT INSTALLATION The location of the Metering Unit should be determined by the following factors: a. An indoor location where the ambient air temperature is within -20°C to +55°C at all times should be used.

  • Page 29: Initial System Checkout

    NOTE In rare instances, one of more LKP Series 4 Channel OEM units in a totalized system will “lock- on”. This phenomenon is not due to component failure in individual units, but is the result of incorrect connections in the system output circuit.
  • Page 30 Installation, Operation and Service Manual LKP Series 4 Channel OEM CAUTION Avoid operating the unit for an extended time with any channel output over 35 V. This will permanently damage the system. For voltages over 35 V, consult the factory.

  • Page 31: Magnetic Centering

    Installation, Operation and Service Manual LKP Series 4 Channel OEM 4. Channel numbers progress clockwise as viewed from front face (conventional current flow is toward the viewer). 4.10 MAGNETIC CENTERING The distribution of load (i.e., heat) among the various channels will be optimized if the Measuring Head is magnetically centered.
  • Page 32 Installation, Operation and Service Manual LKP Series 4 Channel OEM Table 4.3 Form For Recording Channel Voltage Measurements The following table is for the customer's convenience in keeping accurate records on this unit's performance. If the channel voltages are measured and recorded at least two hours after the LKP system is energized having been properly "centered"...

  • Page 33: Theory Of Operation

    5. THEORY OF OPERATION GENERAL A thorough knowledge of the LKP Series 4 Channel OEM theory of operation is essential for efficient product familiarization. In figure 5.1, a portion of the Measuring Head is shown to illustrate the magnetic-null principle used in all LKP Series 4 Channel OEM current measuring equipment.

  • Page 34: Metering Unit

    POWER SUPPLIES There are two power supplies on the LKP Series 4 Channel OEM Metering Unit; the +7 Vdc (12 Vdc for LKP-15 & 30) supply and the ±15 Vdc supply. The ±15 Vdc power supply powers only the on-board circuitry. The +7 (or -12Vdc) supply powers the Hall devices in the Measuring Head.

  • Page 35: Pulse Transformer Drivers

    (SCR pack #1 for channel #1). 5.10 OUTPUT CIRCUIT LKP Series 4 Channel OEM systems provide a dc current output that has a 5000:1 relationship with bus current. The output circuit must be low impedance, and is connected to terminals TB1- 22 (positive) and TB1-23 (negative) of the Metering Unit.
  • Page 36 Installation, Operation and Service Manual LKP Series 4 Channel OEM With unidirectional LKP measurement systems, it is possible that the AD circuits will give a warning indication when the system is operated at low rectifier current level, even though all circuits and components are functioning properly.
  • Page 37 Installation, Operation and Service Manual LKP Series 4 Channel OEM Notes on items a and f above: Under certain conditions, external magnetic fields can reverse one or more channels in the Measuring Head. The accuracy indicators will show an error in those channels until the bus current level rises high enough to effectively turn on all channels (2-3Vdc is the minimum reliable channel voltage).
  • Page 38 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page 24 041593O...

  • Page 39: Maintenance & Spare Parts

    As is true with any electronic circuitry, proper maintenance will prolong the service life. DynAmp, LLC recommends the following program be performed at the recommended interval to prevent or detect damage to the LKP system and to ensure continuing high-accuracy performance.

  • Page 40: Recommended Calibration Verification Intervals

    Laboratory Accreditation Bureau "Guidance for Documenting and Implementing ISO/IEC 17025:2005 and Laboratory Guidance." As a guideline, DynAmp recommends a 24-month interval of calibration for all permanently installed products and a 12-month interval of calibration for all products used in portable applications.

  • Page 41: Spare Parts Orders - Routine Or Emergency

    LKP Series 4 Channel OEM SPARE PARTS ORDERS - ROUTINE OR EMERGENCY Requests for spare parts should be directed to "Service" at DynAmp, LLC during normal hours. When contacting us, please present as much information as possible, such as the related equipment Model and Serial Numbers (available on the equipment tag);...
  • Page 42 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page 28 041593O...

  • Page 43: Technical Bulletins

    The following is a list of available technical bulletins that contain relevant information in regards to high current measurements and the use of LKP systems. The technical bulletins are available upon request from DynAmp, LLC. Always consult the factory for a list of the latest technical bulletins.
  • Page 44 Installation, Operation and Service Manual LKP Series 4 Channel OEM This Page is Intentionally Blank © 2019 DynAmp, LLC Page 30 041593O...

  • Page 45: Drawings

    Wiring Diagram: LKP-15 Measuring Head (TM10-15) 83B107965 Wiring Diagram: LKP-30 Measuring Head (TM 10-30) 83B107966 Wiring Diagram: Harness Assembly, LKP-15, -30, -45, 83A108030 -60, -80 & -100 Totalizing Diagram for CM & LKP Series Metering 02A108033 Systems © 2019 DynAmp, LLC Page 31 041593O...

This manual is also suitable for:

Lkp-6Lkp-15Lkp-12Lkp-30

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