Related Manuals for DynAmp LKAT2
Summary of Contents for DynAmp LKAT2
- Page 2 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page ii 046404 E...
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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 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page iv 046404 E...
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Page 5: Hazard Warning
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 6 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page vi 046404 E...
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Page 7: Safety
If a binding screw is used for the mains earth connection, the binding screw must be size M4 (No. 6) or larger. DynAmp, LLC does not assume liability for the customer’s failure to comply with the rules and requirements provided in this manual. - Page 8 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page viii 046404 E...
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Page 9: Dynamp, Llc Customer Support & Service Assistance
LKAT Installation, Operation and Service Manual +24V 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 – 13:00 GMT to 22:00 GMT From second Sunday in March to first Sunday in November –... - Page 10 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page x 046404 E...
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Page 11: Manual Revisions
ECR 2177 – Update drawing 75A109415 Rev A to B 10/17 5, 27, ECO #3346 - Update MUT description, Non-Failsafe and 07/18 drawings 25, 31 ECR #2225 – Regroup terms of equation 5.2 for 09/18 clarification, remove drawing 75A109415B © 2018 DynAmp, LLC Page xi 046404 E... - Page 12 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page xii 046404 E...
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Page 13: Table Of Contents
Page DynAmp, LLC WARRANTY ________________________________________________ iii Hazard Warning! _________________________________________________________ v SAFETY _______________________________________________________________ vii DynAmp, LLC Customer Support & Service Assistance ________________________ ix MANUAL REVISIONS _____________________________________________________ xi TABLE OF CONTENTS ___________________________________________________ xiii 1. HANDLING AND STORAGE______________________________________________________ 1 2. PRODUCT DESCRIPTION _______________________________________________________ 3 2.1 SYSTEM OVERVIEW ...................... - Page 14 Table 5.2 Trip Configuration Details ..................25 Table 5.3 Low Pass Filter Switch Settings ................26 Table 5.4 LKAT Alarm Relay Status ..................27 Table 6.1 Spare Parts List ......................30 Table 7.1 Drawing List ......................31 © 2018 DynAmp, LLC Page xiv 046404 E...
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Page 15: Handling And Storage
-40°C to 70°C -40°F 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. © 2018 DynAmp, LLC Page 1... - Page 16 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page 2 046404 E...
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Page 17: Product Description
The LKAT combines accurate high current measurement with reverse and overcurrent protection in a single rugged and cost effective system. The next generation of DynAmp’s well proven OLOP technology, LKAT offers a new level of accuracy and stability to accurately and reliably measure uni- and bi-directional DC as well as AC bus currents. - Page 18 Measuring Head and the other end is terminated inside a fixed connector. Custom Signal and Mains cable lengths can be provided. Note that standard Signal and Mains cables can be shortened or replaced with longer cables in the field. © 2018 DynAmp, LLC Page 4 046404 E...
- Page 19 DMM Test probes ( user provided ) • Banana to banana cables ( 1black / 1 red ) • LKAT MUT Product Manual More information on the LKAT MUT can be found at www.dynamp.com or by contacting DynAmp. © 2018 DynAmp, LLC Page 5 046404 E...
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Page 20: Additional Measuring Head Detail
Metering Unit in the field. It is not mandatory that they be factory installed and/or calibrated. The optional pc board assemblies may be calibrated on site, using the LKAT Main Output as the reference measurement. © 2018 DynAmp, LLC Page 6 046404 E... -
Page 21: Additional Indicator And Output Detail
Checking field calibration of LKAT Systems requires use of a reference current transducer with calibration accuracy of 0.1% full-scale or better. Contact DynAmp, LLC for calibration of the LKAT System. Refer to “Maintenance and Spare Parts” section for more information. - Page 22 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page 8 046404 E...
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Page 23: Specifications
(refer to Figure 3.1 for additional info.) Temperature Sensitivity ±50ppm/°C or better Mains Voltage Sensitivity ±0.001%/V * At DynAmp reference conditions : Ambient 25°C ± 2°C (77°F ± 4°F) / Mains 18 – 36Vdc MAIN STATUS INDICATORS Accuracy Diagnostics Indicates LKAT System proper operation or... - Page 24 Operating Ambient Temperature Range of -20°C to 80°C Measuring Head (-4°F to 176°F) Environmental rating: Measuring Head and cable IP65 connection at Head Environmental rating: Metering Unit and cable IP65 connection at Metering Unit © 2018 DynAmp, LLC Page 10 046404 E...
- Page 25 Normalized Frequency f/fc ; fc = 1 1 2 .4 x 10 ( A / s ) / I F S ( A ) F.S. Bus Current (kA) 5 to 50 Corner Frequency (kHz) 2.248 1.873 1.606 1.405 1.249 1.124 © 2018 DynAmp, LLC Page 11 046404 E...
- Page 26 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page 12 046404 E...
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Page 27: Installation
The complete system should be inspected for shipping damage at the earliest opportunity. Visible damage must be reported to the carrier immediately. Concealed damage (not evident until the system is operated) must be reported to DynAmp, LLC immediately. INSTALLATION CONSIDERATIONS Read the following before mounting the head: 1. -
Page 28: Off-Bus Functional Check (Optional)
Measuring Head. The following tools and materials may be required for installation: 3/16” hex wrench (included with Measuring Head) Drill, drill bits, mounting hardware, screwdrivers, wrenches, etc. Cable puller, cable ties, ladder, etc. © 2018 DynAmp, LLC Page 14 046404 E... -
Page 29: Metering Unit Installation
The location of the Metering Unit should be determined by the following factors: 1. Ambient air temperature must stay in the specified range at all times. 2. The location should not be exposed to direct sunlight. © 2018 DynAmp, LLC Page 15 046404 E... -
Page 30: System Checkout
The Metering Unit cover must be open during system checkout, as all measurements are made inside Metering Unit on Main pc board terminal blocks. The cover should remain firmly closed during normal operation. Always complete these forms in full before contacting the factory. © 2018 DynAmp, LLC Page 16 046404 E... - Page 31 P2-1 P2-2 (±5mV) Input P2-3 P2-2 (±5mV) Output Current P3-1 P3-2 10.2V Loop Burden at Full-Scale Serial Numbers : Metering Unit ______________________ Measuring Head A Half : ______________________ B Half : ______________________ © 2018 DynAmp, LLC Page 17 046404 E...
- Page 32 Input B1 Output Current Loop 10.2V P3-1 P3-2 Burden at Full- Scale Serial Numbers : Metering Unit ______________________ Measuring Head A Half : ______________________ B Half : ______________________ Current Loop Burden Resistance (Ohms)___________ © 2018 DynAmp, LLC Page 18 046404 E...
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Page 33: Theory Of Operation
The absence of a magnetic core practically eliminates errors due to saturation, hysteresis, and core set (remanence) commonly associated with ferrite material. A generalized block diagram of the LKAT System is shown in Figure 5.1. © 2018 DynAmp, LLC Page 19 046404 E... -
Page 34: System Functional Description
LED will go out and the red LED will illuminate. The relay coil will change state under the same conditions. The Trip Setpoint LEDs and relay contacts operate in a similar manner. © 2018 DynAmp, LLC Page 20 046404 E... -
Page 35: Lkat Metering Unit
This is true whether or not the Measuring Head is installed on the bus. The following table is intended to help the user determine and eliminate the cause of the fault. © 2018 DynAmp, LLC Page 21 046404 E... -
Page 36: System Calibration Overview
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 37: Calibration Adjustments
Field calibration is possible using a 0.1% accurate current measurement system, such as the DynAmp LKP, LKCO or Opti-Cal as a reference. Due to significantly larger size and mass, it may be difficult to install a comparably rated LKP Measuring Head in on the same bus as the LKAT . - Page 38 The Optional PE and/or RMS Display pc board assemblies may be added, configured and calibrated in the field. In this case, the Main pc board assembly output signal is used as the reference output signal with the LKAT System measuring normal bus current. © 2018 DynAmp, LLC Page 24 046404 E...
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Page 39: Field Configuration Of Trip Setpoints
The trip setpoint is proportional to the current where the trip will occur: “Trip Current” – from Metering Unit nameplate. The easiest method to check or change trip setpoints is to use the DynAmp LKAT MUT system which is specifically designed to simplify this process as well as verify proper operation afterwards. -
Page 40: Earth Grounding
Refer to the Main pc board assembly drawing at the end this manual. To configure the low pass filter, set switches as shown in the table below. Table 5.3 Low Pass Filter Switch Settings SW1 position No low pass filtering 330 Hz cutoff 660 Hz cutoff © 2018 DynAmp, LLC Page 26 046404 E... -
Page 41: Failsafe" / "Non-Failsafe" Configuration
Closed P9-3 to P9-4 Open Closed Open Trip1 Open P3-6 to P3-8 Open Closed Closed P3-6 to P3-7 Closed Open P3-3 to P3-5 Closed Open Closed P3-3 to P3-4 Open Closed Open © 2018 DynAmp, LLC Page 27 046404 E... - Page 42 LKAT Installation, Operation and Service Manual +24V This Page is Intentionally Blank © 2018 DynAmp, LLC Page 28 046404 E...
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Page 43: Maintenance & Spare Parts
PERIODIC MAINTENANCE As is true with any electronic system, proper maintenance will tend to prolong the service life. DynAmp, LLC recommends the following program be performed at the recommended interval to prevent or detect damage to the LKAT System and to ensure reliable performance. -
Page 44: Spare Parts
System Measuring Heads require special repair procedures and materials. However, the heads are very reliable and should require little or no repair over its service life. Please refer to the nearest authorized DynAmp, LLC service center for information on repairs. Table 6.1... -
Page 45: Drawings
84B109279 Assembly: LKAT Main PCB 75A109352 Assembly: LKAT Protection Extensions PCB 75A108587 Assembly: LKAT RMS Display PCB 75A108588 Outline and Mounting: LKAT Measuring Head 02B109349 Outline and Mounting: LKAT Metering Unit 02B109280 © 2018 DynAmp, LLC Page 31 046404 E...
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