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Summary of Contents for DynAmp LKP Series
- Page 1 Model LKP-45, LKP-60, & LKP-80 DIRECT CURRENT METERING SYSTEMS Installation, Operation and Service Manual Manual Item No. 041736 Rev. N 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 This Page is Intentionally Blank © 2020 DynAmp, LLC Page ii 041736 N...
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Page 3: Dynamp, Llc Warranty
Items and components not manufactured and resold by DynAmp, LLC are warranted by their manufacturer. Warranty repair shall be, at DynAmp’s option, in the form of repair or replacement of the defective items or components. Concerning warranty repairs, DynAmp, LLC will be responsible for DynAmp provided time, material and transportation costs (shipping or travel). - Page 4 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page iv 041736 N...
- Page 5 According to EN 50082, the manufacturer must state the degradation of performance level acceptable during immunity tests. Unless otherwise noted in the manual or data sheet, DynAmp limits degradation during immunity tests for this equipment to < 0.5% FS for A-criterion tests.
- Page 6 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page vi 041736 N...
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Page 7: Table Of Contents
DYNAMP, LLC WARRANTY _____________________________________________________III TABLE OF CONTENTS ________________________________________________________ VII HAZARD WARNING! __________________________________________________________ IX SAFETY ____________________________________________________________________ XI DYNAMP, LLC CUSTOMER SUPPORT & SERVICE ASSISTANCE ____________________ XIII MANUAL REVISIONS ________________________________________________________ XV 1. HANDLING AND STORAGE ....................1 2. PRODUCT DESCRIPTION ....................3... - Page 8 Title ........................Page Figure 4.1 General Guidelines for Locating Measuring Heads ............. 8 Figure 4.2 Window Insulation Nomenclature Typical For LKP Series Measuring Heads ..... 9 Figure 4.3 Proper Lifting Technique ................... 12 Figure 5.1 Magnetic Null Detector Diagram ................23 Figure 5.2 Functional Diagram of Four-Channel System ............
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Page 9: Hazard Warning
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. This equipment is designed to be connected to hazardous electric voltages. - Page 10 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page x 041736 N...
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Page 11: Safety
This will insure electrical isolation of the Measuring Head structure from the bus. The Measuring Head itself is grounded via the cables to the Metering Unit. Refer to the “Installation Considerations” section of the manual for more details. © 2020 DynAmp, LLC Page xi 041736 N... - Page 12 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. © 2020 DynAmp, LLC...
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Page 13: Dynamp, Llc Customer Support & Service Assistance
Installation, Operation and Service Manual LKP Series DYNAMP, LLC CUSTOMER SUPPORT & SERVICE ASSISTANCE For further assistance, contact DynAmp, LLC 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 – 13:00 GMT to 22:00 GMT From second Sunday in March to first Sunday in November –... - Page 14 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page xiv 041736 N...
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Page 15: Manual Revisions
Updated Accuracy Diagnostics & Spare Parts section 04/02 iii, 7 Rev F Updated Warranty and Installation paragraph 10/03 Rev G Update to DynAmp, LLC, update Table 2 – Measuring 11/04 head resistance chart LKP-80 vii, 1, 34, Rev H Update fuse precautions per ECR 1304 07/06... - Page 16 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page xvi 041736 N...
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Page 17: 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. © 2020 DynAmp, LLC Page... - Page 18 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page 041736 N...
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Page 19: Product Description
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. -
Page 20: Electrical
5. A normally closed relay contact for accuracy diagnostics output at TS2-12 through TS2- 14. This feature is only available when the accuracy diagnostics option is ordered. 6. Optional isolated shunt output. Scaling is per customer order: 0-10V, 4-20mA available. © 2020 DynAmp, LLC Page 041736 N... -
Page 21: Specifications
Installation Category Pollution Degree Contingent upon DynAmp, LLC computer analysis of bus system. The LKP systems are factory-set for the correct voltage and frequency (50 or 60 Hz) per customer order. To operate an 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 22 Installation, Operation and Service Manual LKP Series Table 3.1 LKP Series 6 & 8 Channel Specifications, Continued OUTPUTS Current output: 1 A/5 kA, ±0.1% full scale Voltage output, LKP-45, LKP-60 10mV per kA of bus current, ±0.1% full scale Voltage output, LKP-80 1mV per kA of bus current, ±0.1% full scale...
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Page 23: Installation
4. INSTALLATION 4.1 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 24: Measuring Head Installation
Choker slings may be used around the Measuring Head as long as strong lateral pressure on the edge of the window insulation is avoided (see note below). © 2020 DynAmp, LLC Page 041736 N... - Page 25 Also, the interconnecting cable is of top quality, but it is not armored. Protect it from abrasion and sharp edges. Figure 4.2 Window Insulation Nomenclature Typical For LKP Series Measuring Heads NOTE The Measuring Head must be installed with current arrows in the same direction as conventional current flow in the bus.
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Page 26: Installation Considerations
For that reason, always disconnect the cables from the head prior to installation or maintenance. Touching both an energized bus bar and grounded Measuring Head may result in electrical shock. © 2020 DynAmp, LLC Page 041736 N... - Page 27 Warning : Keep all exposed Measuring Head cable leads from touching the bus, ground, or any support structures. Consult with DynAmp about using a shorting plug at each connector. © 2020 DynAmp, LLC Page...
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Page 28: Installation Precautions (Live Bus)
B.) Before connecting the other end of the interconnecting cable to the Metering Unit, perform the ohmmeter tests in Table 4.1. The tests are made from the open end of the cable, looking back towards the Measuring Head. Record these values for future reference. © 2020 DynAmp, LLC Page 041736 N... - Page 29 3. These resistance readings are the room temperature values of the copper channel coils. Measured values can be 50% higher if Measuring Head is hot and/or cable length is longer than 30 feet. © 2020 DynAmp, LLC Page 041736 N...
- Page 30 Hall Current - Channel # 4, 5, 6 40 & 41 240-550 Hall Signal - Channel #4 36 & 37 240-550 Hall Signal - Channel #5 38 & 39 240-550 Hall Signal - Channel #6 © 2020 DynAmp, LLC Page 041736 N...
- Page 31 Hall Current - Channel # 4, 5, 6 40 & 41 240-550 Hall Signal - Channel #4 36 & 37 240-550 Hall Signal - Channel #5 38 & 39 240-550 Hall Signal - Channel #6 © 2020 DynAmp, LLC Page 041736 N...
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Page 32: Metering Unit Installation
D.) Mount the Metering Unit on a wall, column, instrument panel, or other convenient location (refer to outline and mounting diagram in the back of the manual). © 2020 DynAmp, LLC Page 041736 N... -
Page 33: Metering Unit Wiring
(to verify no condition exists that may cause damage to the LKP Metering Unit), and the second set after a 24-hour period of time (to thermally stabilize the Measuring Head). Proceed as follows: © 2020 DynAmp, LLC Page 041736 N... -
Page 34: Magnetic Centering
Whether or not the Measuring Head should actually be moved depends on three factors: A.) The possible impracticality or difficulty of moving the Measuring Head because of support-system requirements, clearances available, etc. © 2020 DynAmp, LLC Page 041736 N... - Page 35 Make spot readings of the channels in question to confirm results. When the spot readings are satisfactory, record their values and measure and record the values of all other channels on the diagram in Table 4.3 or © 2020 DynAmp, LLC Page 041736 N...
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Page 36: Reversing Cable Exit Direction On Measuring Head
6. Reconnect the cables to the Measuring Head and reapply ac power to the Metering Unit. Warning: With the system on a live bus, the ac power is off, and the cable disconnected from the head, a shock hazard exists on the Measuring Head connector terminals. © 2020 DynAmp, LLC Page 041736 N... - Page 37 2. Supply the information called for below. CHANNEL VOLTAGES Ambient Temperature: Date: [ ] LOOP BURDEN (TS2-4 & -5) [ ] LINE VOLTAGE: (TS1-2 & -3) [ ] BUS CURRENT (kA): Serial Number of LKP-45 or LKP-60: _______________________________ © 2020 DynAmp, LLC Page 041736 N...
- Page 38 TS1-49 to 55 TS1-50 to 55 CHANNEL VOLTAGES Ambient Temperature: Date: [ ] LOOP BURDEN (TS2-4 & -5) [ ] LINE VOLTAGE: (TS1-2 & -3) [ ] BUS CURRENT (kA): Serial Number of LKP-80: _______________________________ © 2020 DynAmp, LLC Page 041736 N...
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Page 39: Theory Of Operation
Figure 5.2 shows four such assemblies (referred to as a 4-channel assembly). A 4-channel system is used here as an illustration to simplify the drawing and explanation. © 2020 DynAmp, LLC Page 041736 N... -
Page 40: Circuit Functions
Beginning at a magnetic sensor in the Measuring Head, we can trace the signal path. To achieve a signal output in the presence of a magnetic field, the sensor (Hall plate) must be © 2020 DynAmp, LLC Page 041736 N... -
Page 41: Metering Unit
Two squarewaves are generated at the output of these comparators, one for the positive half cycle and one for the negative half, (pins 1 and 2 of U110 for channel #1). One square © 2020 DynAmp, LLC Page 041736 N... -
Page 42: Pulse Transformer Drivers
It is made up of a number of circuits, monitoring conditions of many of the critical components, circuits and connections within the current monitoring system. The AD subsystem provides relay contacts for the © 2020 DynAmp, LLC Page 041736 N... - Page 43 FIRST- Lock out control actions that could drive the rectifier output higher and SECOND-alert the operator. Basically, each module inside the Metering Unit has four channel LEDs and two power supply monitoring LEDs. The following is a description of their functionality: © 2020 DynAmp, LLC Page 041736 N...
- Page 44 Contact Terminals Condition TS2-12,13 TS2-13,14 Open Closed Fault condition, zero bus current*, or Metering Unit turned off Closed Open Normal operation * see notes above on zero bus current condition. © 2020 DynAmp, LLC Page 041736 N...
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Page 45: 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 46: 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 47: Spare Parts Orders - Routine Or Emergency
LKP Series 6.4 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); the required part name;... - Page 48 All Fuses are Time lag MDA (or MDL) style 3AB (or 3AG) ¼” by 1 ¼” (6.3 mm x 32mm), 250 Volt Only required if accuracy diagnostics option is installed. Disconnect power to the system before servicing or replacing fuses. © 2020 DynAmp, LLC Page 041736 N...
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Page 49: Related 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 50 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2020 DynAmp, LLC Page 041736 N...
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Page 51: Drawings
Board Wiring - Isolator& DPM Options 6 & 8 Channel LKP 83A108255 Metering Units Totalizing Diagram for CM & LKP Series Metering Units 02A108033 Outline and Mounting: LKP 6 & 8 Channel Metering Unit 02B107876 Assembly: Supply & SCR Drive PC Board, LKP Modules...
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