Elster Solutions REXILC 900 MHz Automated Meter Reading System Transmitter User Manual PG42 1005 p65

Elster Solutions, LLC 900 MHz Automated Meter Reading System Transmitter PG42 1005 p65

User Manual

A3 ALPHA® Meter/CollectorProduct Guide PG42-1005A
A3 ALPHA Meter/Collector PG42-1005A2July 2003The A3 ALPHA meter/collector is the communications point between theEnergyAxis System and the local network of REX meters that are registered tothe meter/collector. The EnergyAxis System communicates with the A3 ALPHAmeter/collector using a standard telephone line. The A3 ALPHA meter/collectorthen communicates with its registered REX meters using a 2–way, 900 MHz radiofrequency network. The A3 ALPHA meter/collector is responsible for variousactivities within the network of REX meters, including the following:■reading and storing the billing data from each REX meter on a periodic basis■reading and storing the load profiling data from a configurable number ofREX meters on a periodic basis■notifying the REX meters to perform demand resets based on a schedulefrom the EnergyAxis System■reading and storing the previous billing period data from REX meters after ademand reset has occurred■notifying the REX meters to perform season changes based on a schedulefrom the EnergyAxis System■reading and storing the previous season data from REX meters after seasonchanges have occurred■synchronizing the REX meters to the system time and TOU day type■distributing TOU rate schedules to the REX meters■reading or sending commands to an individual REX meter on command fromthe EnergyAxis System■performing other network maintenance tasks■reporting the billing and load profiling data back to the EnergyAxis SystemGeneral DescriptionThe A3 ALPHA meter builds upon the strengths of the existing ALPHA meterdesigns. Like its predecessors, the A3 ALPHA meter uses Elster Electricity'spatented digital measurement techniques that offer high accuracy, repeatability,and low ownership costs. In support of open architecture standards, theA3 ALPHA meter is the first Elster Electricity meter with full ANSI C12.18,C12.19, and C12.21 communication protocol support.To function as an A3 ALPHA meter/collector, an A3 ALPHA meter requires thefollowing two option boards:■internal telephone modem (ITM3) with optional outage reporting capabilities■internal LAN controller (ILC1) option boardThe ITM3 option board connects to the A3 ALPHA meter using the 20-pinheader (J4) on the meter circuit board as shown in Figure 1. The ILC1 optionboard connects to the ITM3 option board using the 20-pin header (J5) as shownin Figure 1.An A3 ALPHA meter/collector has a 4-conductor telephone cable exiting themeter with an RJ-11 connector at the end as shown in Figure 2. There is a wiremarker approximately 6 inches from the RJ-11 end with “INT MOD ITM3” printedon it for identifying that the ITM3 option board is installed.A3 ALPHA MeterCircuit Board
PG421005A A3 ALPHA Meter/CollectorJuly 2003 3Meter electronichousingMeter circuitboardITM3 optionboardILC1 optionboardJ4J5Figure 1. A3 ALPHA meter electronic assemblyFigure 2. A3 ALPHA meter with ITM3 RJ-11 cable
A3 ALPHA Meter/Collector PG42-1005A4July 2003Metercat Programming NoteTo have the A3 ALPHA meter function properly as a data collector in theEnergyAxis System, it is important that the meter be programmed correctly usingMetercat. In the Remote component tab in Metercat, be sure that the followingoptions are set:■Port 1 usage is set to internal modem.■Port 2 usage is set to direct connect.■On the Port 1 Modem tab, enable line sharing (the Enable Line Sharing box ischecked).■On the Port 2 Direct Connect tab, the bit rate is set to 9600.The other options can be set as desired. For more information on using Metercat,see the Metercat documentation.MetercatThe A3 ALPHA meter/collector requires Elster Electricity Metercat supportsoftware release 1.4 or later to program the meter for collecting REX meter dataand read the LAN status and information from the meter. Metercat offers thefollowing features:■program development to create user-defined configuration data■meter programming to send user-defined configuration data or commands tothe meter■meter reading to receive data that has been stored by the meterEnergyAxis Metering Automation ServerThe EnergyAxis Metering Automation Server (MAS) reads meters over telephoneor wireless networks. Using MAS, meter readings can be scheduled on a periodicbasis or performed on-demand from the browser-based user interface. MASallows all billing data to be read from the meter; this includes data from the A3ALPHA meter/collector and from each REX meter. Billing data includes multi-channel interval data, consumption, demand, time-of-use registers as well asmeter status flags. REX meter data can be read from the stored data in the A3ALPHA meter/collector or it can be read directly from the REX meter. MASprovides several reports to help manage and operate the system.Data exchange with MAS is performed using an open XML schema, AMR DataExchange Format (AMRDEF), so that interfaces with billing systems and otherenterprise systems can be easily implemented. MAS also comes with theJSlinger module, a powerful driver for file transfer protocol (FTP) that can trans-form, compress and encrypt data files prior to sending them to trusted IP ad-dresses across the Internet.Elster Electricity MeterSupport Software
PG421005A A3 ALPHA Meter/CollectorJuly 2003 5The A3 ALPHA meter and the ILC1 option board typically operate independentlyof each other. The primary task of the ILC1 option board is to maintain the localarea network (LAN) and read and store billing data from REX meters. The ILC1option board communicates with the A3 ALPHA meter/collector to read time andday type information. This information is then propagated through the LAN to theREX meters. The time base in the A3 ALPHA meter/collector is used as thesystem time for the LAN, and the ILC1 option board periodically reads this timeand distributes the time to the LAN.Billing DateThe billing date (or, the demand reset date) for the A3 ALPHA meter/collector canbe controlled by either of the following:■internally by the calendar in the A3 ALPHA meter■externally by MAS when the MAS calls the A3 ALPHA meter/collector on thebilling date and issues a demand reset commandBilling dates for REX meters in the LAN are handled by the ILC1 option board.The ILC1 option board can assign each REX meter to one of thirty billing dates.Using the billing date information, the ILC1 option board will make certain that theassociated REX meters reset demand on the correct billing date. Before resettingdemand, a REX meter will record a copy of the billing data. This billing data copywill then be read and stored by the ILC1 option board.TOU SchedulesIf the A3 ALPHA meter/collector is a TOU meter, TOU switch points are controlledby the A3 ALPHA meter. The ILC1 option board controls TOU switch points forREX meters in the LAN. Each REX meter can be assigned to one of seven TOUschedules, where each schedule consists of weekday, weekend, and two special(that is, holiday) day types. The ILC1 option board broadcasts the TOU schedulesto the REX meters, where they are stored and used to record kWh data in thecorrect TOU register. The ILC1 option board reads and stores TOU data fromeach REX meter as part of the normal billing read.Season ChangesSeason changes for the A3 ALPHA meter/collector are controlled by the calendarin the A3 ALPHA meter. Season changes for the REX meters are controlled bycalendars in the ILC1 option board. The ILC1 option board has season changedates for each of the seven TOU schedules. Using the season change informa-tion, the ILC1 option board makes certain that the associated REX meter performa season change on the correct date. After a season change, the ILC1 optionboard will read and store a season change copy of the billing data from associ-ated REX meters.Operation of theA3 ALPHA Meter withILC1 Option Board
A3 ALPHA Meter/Collector PG42-1005A6July 2003Call InitiationThe A3 ALPHA meter/collector can initiate billing, alarm, and outage/restorationcalls based on the customer program configured in the meter. The ILC1 optionboard can initiate alarm to report the following conditions:■An additional REX meter has been registered to this A3 ALPHA meter/collector■A REX meter's demand threshold has been exceeded (the REX meter mustbe enabled to report this condition to the A3 ALPHA collector)■Power has been restored to a REX meter (the REX meter must be enabled toreport this condition to the A3 ALPHA collector)■Warning conditions related to REX meters with an internal service disconnectswitch (the REX meter must be enabled to report this condition to the A3ALPHA collector)For each of these exceptions, the ILC1 option board can be configured to initiatea call at the following times:■never■immediately■after a configurable delay of 1 to 255 minutes■dailyTelephone calls initiated by the ILC1 option board use the A3 ALPHA meter'salarm telephone number.Power FailWhen there is a power failure, the A3 ALPHA meter initiates a shutdown andstores the A3 ALPHA meter billing data and status information in EEPROM. Allbilling data information stored in the ILC1 option board is stored in battery-backed RAM. The A3 ALPHA meter's real-time clock and the data stored in theILC1 option board is maintained by the super capacitor and battery during apower failure.If the super capacitor and battery fail, all RAM in the meter and in the ILC1 will belost. Upon power restoration, the LCD will display a carryover error for both theA3 ALPHA meter data (see the A3 ALPHA Meter Technical Manual TM42-2190)and the ILC1 option board data (see ILC1 Option Board Error Codes).Loss of Real TimeWithin the network, the REX meters obtain real time from time signals sent by theA3 ALPHA meter/collector. The ILC1 option board does not have its own realtime clock; instead, it obtains the time directly from the A3 ALPHA meter. Thereare two ways the ILC1 option board can lose time from the A3 ALPHA meter:■A3 ALPHA meter has lost its timekeeping capability■the ILC1 option board cannot communicate with the A3 ALPHA meterWhen real time is lost, all REX meters in the network revert to relative timekeepingand store all energy data in the default rate. Additionally, the A3 ALPHA meterLCD will indicate the ILC1 option board's loss of real time by displaying an errorcode (see ILC1 Option Board Error Codes for more information).
PG421005A A3 ALPHA Meter/CollectorJuly 2003 7The A3 ALPHA meter/collector can be read in the following ways:■visually using the LCD■remotely using the ITM3 option board and Elster Electricity meter supportsoftwareFor more details on the information that can be read on the LCD, see "DisplayList Items."Using the telephone modem, Table 1 shows the information that can be obtainedfrom the A3 ALPHA meter/collector.Reading the A3 ALPHAMeter/CollectorCategory  Items Indicates Hardware version  Hardware version of the ILC1 option board LAN ID  Complete A3 ALPHA meter/collector LAN ID Firmware version  ILC1 option board firmware version number Utility ID  A utility’s unique ID for all meters within its network Firmware S-Spec  Manufacturer identifier of the ILC1 option board firmware User shared memory  The amount of memory used in the ILC1 option board for storage (including such things as load profiling records and billing data for each REX meter) LAN node types  Whether the A3 ALPHA meter is operating as a node or a collector in the network Available shared memory The amount of storage available on the ILC1 option board LAN controller status Errors  A condition that affects the operation of the ILC1 option board Registered nodes  The number of REX meters that are registered to the A3 ALPHA meter/collector and the unique identification number (LAN Id) of the registered nodes.  Repeaters  The number of REX meters that are registered to the A3 ALPHA meter/collector that are operating as a repeater LAN status Event list  The date and time of the most recent of the following events: REX meter read (start and stop) REX meter load profiling read (start and stop) node scan (start and stop) partial load profiling read (start and stop) A3 ALPHA meter/collector time broadcast Clear REX meter registration Communication statistics For each REX meter, the number of read/write as compared to the number of successful reads/writes. Billing data  Current billing data Previous billing period data Previous season billing data Load profile data Billing data is available for each REX meter registered to the data collector. For a list of the specific data that can be read from a REX meter, refer to the REX meter technical manual (TM42-2210A). Table 1. Information available remotelyFor more details about the items available through the ITM3 option board, see theElster Electricity meter support software documentation.
A3 ALPHA Meter/Collector PG42-1005A8July 2003If the A3 ALPHA meter/collector must be taken out of service (because of anerror condition, the telephone modem fails, etc.), the A3 ALPHA meter/collectorcan be replaced with another A3 ALPHA meter/collector.Since the REX meters within the network register with a meter/collector, achange out procedure needs to be performed to make certain that the REXmeters will communicate with the new A3 ALPHA meter/collector. Follow thesesteps to change out an old meter/collector with a new meter/collector:1 Before beginning the change out procedure, verify that the new A3 ALPHAmeter/collector is properly configured (see Metercat Program DevelopmentGuide for specific details).2 Using Metercat software, perform a billing or diagnostic read on the old A3ALPHA meter/collector. Be certain to include storage mode (either append orreplace) and all of the internal LAN controller data in the read.3 Make a note of the old A3 ALPHA meter/collector LAN ID obtained from thebilling or diagnostic read performed in step 2.4 Remove the old A3 ALPHA meter/collector from service. (See A3 ALPHAMeter Technical Manual for specific details).5 Install the new A3 ALPHA meter/collector. Be sure to follow the installationinstructions that are provided with the A3 ALPHA meter/collector to correctlyinstall the meter/collector.6 Using Metercat software, perform the "Change Out LAN Collector" function.(See Metercat user Guide for specific details). The old A3 ALPHA meter/collector LAN ID obtained in step 3 will be needed to complete the changeout function.After the change out command is performed, the REX meters will re-register withthe new A3 ALPHA meter/collector.Changing an A3 ALPHAMeter with ILC1 OptionBoard Use authorized utility procedures to remove metering equipment. Dangerousvoltages are present. Equipment damage, personal injury, or death can result ifsafety procedures are not followed.WARNING!The A3 ALPHA meter display can be divided into different regions as shown inFigure 3. See Chapter 3, "Operating Instructions," in the A3 ALPHA metertechnical manual (TM42-2190) for more detailed descriptions of the LCD and itsdisplay regions.Display List ItemsARhCUMKWRATETOTALRESETSCONTMAXABCDPREV SEASTESTALT EOIQuantity identifierOperating modeindicator DisplayquantityPotentialindicatorsEnd of intervalindicatorReal energyindicatorsAlternateenergyindicatorsPower/energyunits identifierDisplay identifiersFigure 3. A3 ALPHA meter LCD
PG421005A A3 ALPHA Meter/CollectorJuly 2003 9The display format for all displayable items, including the items relating to theILC1 option board, can be programmed using Elster Electricity meter supportsoftware.ILC1 Option Board Error CodesUnlike A3 ALPHA meter error codes, ILC1 option board error codes must beprogrammed as displayable items in the A3 ALPHA meter display list; otherwise,the meter LCD will not display any indication that a condition exists that affectsthe ILC1 option board's operation. Table 2 identifies the ILC1 option board errorconditions and the associated display quantity value. The quantity identifier is thesame for all ILC1 option board error codes and can be any numeric character(represented by i in Table 2).Condition  Quantity identifier  Display quantity value No error  iii  000000 Clock error  iii  000001 Carryover error  iii  000010 Table CRC error  iii  000100 Configuration error  iii  001000 Shared memory error  iii  010000 Power fail data save error  iii  100000 Table 2. Error conditions and codesError codes may be displayed in combination (for example, iii-100001) indicatingthat more than one error condition has been detected.No error. This code is displayed when no error condition exists in the ILC1 optionboard. Since ILC1 option board error codes must be programmed as displayitems, the no error code is used when no error condition is present in the ILC1option board.Clock error. This code indicates an error with the timekeeping ability of the ILC1option board. The ILC1 option board can lose its real time clock if the A3 ALPHAmeter has lost its timekeeping capability or if the ILC1 option board cannotcommunicate with the A3 ALPHA meter. When this condition is present, all REXmeters in the network revert to relative timekeeping and store all energy data inthe default rate.Replace the meter battery. The ILC1 option board periodically attempts to readtime from the A3 ALPHA meter (the ILC1 option board reads the time every 15minutes by default). The ILC1 error will clear after the ILC1 successfully communi-cates to the A3 ALPHA meter and reads a valid time. The error code should becleared within 15 minutes of the time the battery is replaced. If the error codecontinues to be displayed, return the A3 ALPHA meter with ILC1 option board toElster Electricity for repair or replacement.Carryover error. This code indicates that the ILC1 option board's battery-backedRAM was not maintained during a power failure. When there is a power failure,battery-backed RAM on the ILC1 option board is maintained by the A3 ALPHAmeter's super capacitor or battery. If both of these fail, the data stored in RAM islost. The meter battery may need to be replaced. The ILC1 option board error willbe cleared remotely by the MAS.Table CRC error. This code indicates a possible error in the ILC1 option board's
A3 ALPHA Meter/Collector PG42-1005A10 July 2003programming. This error may be corrected remotely by the MAS. If the error codeis displayed after reprogramming, return the A3 ALPHA meter with ILC1 optionboard to Elster Electricity for repair or replacement.General configuration error. This code indicates a problem with the ILC1 optionboard's configuration or program. The error may be corrected remotely by theMAS. Contact Elster Electricity if this error code continues to be displayed on theLCD.Shared memory error. This code indicates that one of the following conditionshas occurred:■The amount of memory requested by the ILC1 program exceeds the amountof physical memory present.■The shared memory configuration has been changed and a clear datacommand has not been performed.Shared memory on the ILC1 option board is used to allow the number of regis-tered meters and the number of meters for which the ILC1 option board storesprofile data to be varied to meet specific applications. The ILC1 option board willsupport a maximum of 1024 registered nodes. The amount of memory requiredto store current billing data, previous period billing data, and previous seasondata limits the amount of data available for storage of load profile data. There aretwo variables that control the amount of shared memory required to store loadprofile data:■The number of REX meters for which load profile data is to be stored.■The number of days of data to store for each REX meter.As these two load profile variables are increased, the maximum number ofregistered nodes must be decreased to allow all of the data to fit within theavailable shared memory on the ILC1 option board.If a shared memory error exists, it can be corrected remotely by the MAS.Contact Elster Electricity if this error code continues to be displayed on the LCD.Power fail data save error. This code indicates that the data saved in the ILC1option board's nonvolatile memory during a power fail may be invalid. This errorwill be displayed when power is restored to the meter if a self check has discov-ered an error with the ILC1 option board's memory. This error can be correctedremotely by the MAS.ILC1 Option Board Status CodesFor ILC1 status codes to appear on the A3 ALPHA LCD they must be pro-grammed as displayable items. Status codes indicate the operational status ofthe ILC1 option board. Unlike error codes, the status codes do not indicate aproblem with the ILC1 option board. Table 3 identifies the status condition and itsassociated display quantity value. The quantity identifier is represented by i inTable 3.Condition  Quantity identifier  Display quantity value Collector operation  iii  000001 Table 3. Status condition and code
PG421005A A3 ALPHA Meter/CollectorJuly 2003 11Collector operation. This code indicates that the A3 ALPHA meter is operating asa collector. While operating as a collector, the A3 ALPHA meter is collecting andstoring REX meter data.ILC1 Option Board InformationILC1 option board information can be displayed on the A3 ALPHA meter LCD.ILC1 option board information are items that are not associated with any particu-lar error condition. Table 4 identifies all the items that are available for display. Thequantity identifier must be a numeric character (represented by i in Table 4) andshould be unique for each item that you want to display. Use Elster Electricitymeter support software to select the display items and their associated quantityidentifier.Display item  Quantity identifier  Display quantity value REX LAN ID 2  iii  xxxxxx REX LAN ID 1  iii  xxxx REX utility ID  iii  xxxxxx ILC number of nodes  iii  xxxxxx ILC number of repeaters  iii  xxxxxx Table 4. Information items and display formatREX LAN ID 2. This item displays the last 6 digits of the ILC1 option board LANID.REX LAN ID 1. This item displays the first 4 digits of the ILC1 option board LANID.REX utility ID. This item displays the utility ID for the A3 ALPHA meter/collector.The utility ID is the same for all meters that are part of a network.ILC number of nodes. This item displays the number of REX meters that areregistered to the A3 ALPHA meter/collector.ILC number of repeaters. This item displays the number of REX meters that areregistered to the A3 ALPHA meter/collector and that are operating as a repeater.The ILC1 option board has configuration parameters that determine how muchdata can be stored. Table 5 through Table 7 show the estimated number of daysof load profiling intervals available, depending on the following factors:■length of the REX meter's load profiling interval■number of REX meters the A3 ALPHA meter/collector has registeredTable 5 through Table 7 assume that the A3 ALPHA meter/collector reads andstores load profiling data for all registered nodes.Memory Capacity
A3 ALPHA Meter/Collector PG42-1005A12 July 2003REX meters allowed to register  Days of LP storage 35 40 70 20 100 14 250 5 500 2 1024 1 Table 5. Maximum number of days of load profiling storage available based on15-minute load profiling intervalsREX meters allowed to register  Days of LP storage 70 40 100 28 250 11 500 5 1024 2 Table 6. Maximum number of days of load profiling storage available based on30-minute load profiling data intervalsREX meters allowed to register  Days of LP storage 140 40 250 22 500 11 Table 7. Maximum number of days of load profiling storage available based on60-minute load profiling data intervals
PG421005A A3 ALPHA Meter/CollectorJuly 2003 13Compliance Statement (Part 15.19)The A3 ALPHA meter/collector complies with Part 15 of the FCC Rules and withRSS-210 of Industry Canada. Operation is subject to the following two condi-tions: 1) This device may not cause harmful interference, and 2) This device mustaccept any interference received, including interference that may cause undesiredoperation.Warning (Part 15.21)Changes or modifications not expressly approved by Elster Electricity, LLC couldvoid the user's authority to operate the equipment.RF Radiation Safety Guidelines per Part 2 of FCC Rulesand RegulationsThe meter should be installed in a location where there will be a separationgreater than 20 cm from locations occupied by humans.User Information (Part 15.105)The A3 ALPHA meter/collector has been tested and found to comply with thelimits for a Class B digital device, pursuant to part 15 of the FCC Rules. Theselimits are designed to provide reasonable protection against harmful interferencein a residential installation. This equipment generates, uses and can radiate radiofrequency energy and, if not installed and used in accordance with the instruc-tions, may cause harmful interference to radio communications. However, there isno guarantee that interference will not occur in a particular installation. If thisequipment does cause harmful interference to radio or television reception, theuser is encouraged to try to correct the interference by one or more of thefollowing measures:■Reorient or relocate the receiving antenna.■Move the receiving equipment farther away from the A3 ALPHA meter/collector.■Consult the dealer or an experienced radio/TV technician for help.Industry Canada StatementThe term "IC" before the certification/registration number only signifies that theIndustry Canada technical specifications were met.FCC and IndustryCanada Compliance
A3 ALPHA Meter/Collector PG42-1005A14 July 2003Absolute Maximums Voltage  Continuous 528 VAC Surge voltage withstand  Test performed  Results ANSI C37.90.1 Oscillatory  2.5 kV, 2500 strikes Fast Transient  5 kV, 2500 strikes ANSI C62.41  6 kV @ 1.2/50 µs, 10 strikes IEC 61000-4-4  4 kV, 2.5 kHz repetitive burst for 1 minute ANSI C12.1 Insulation  2.5 kV, 60Hz for 1 minute Current  Continuous at Class Amperes Temporary (1 second) at 200 % of meter maximum current Operating Ranges Voltage  Nameplate nominal range  Operating range 120 V to 480 V (May have to be form dependent due to emissions issues. We should know the answer to this early next week) 96 V to 528 V Current  0 to Class amperes Frequency  Nominal 50 Hz or 60 Hz ± 5 % Temperature range  -40 °C to +85 °C inside meter cover Humidity range  0 % to 100 % noncondensing Operating Characteristics Power supply burden (Phase A)  Less than 4 W Per phase current burden  0.1 milliohms typical at 25 °CPer phase voltage burden  0.008 W @ 120 V  0.03 W @ 240 V  0.04 W @ 480 V Accuracy  Meets ANSI 12.20 accuracy for accuracy class 0.2 % General Performance Characteristics Starting current   Form 1S and Form 3S  10 mA for Class 20  100 mA for Class 200  160 mA for Class 320 All other forms  5 mA for Class 20   50 mA for Class 200  80 mA for Class 320 Startup delay  Less than 3 seconds from power application to pulse accumulation Creep 0.000 A (no current)  No more than one pulse measured per quantity, conforming to ANSI C12.1 requirements Primary time base  Power line frequency (50 Hz or 60Hz), with selectable crystal oscillator Secondary time base  Meets the ANSI limit of 0.02 % using the 32.768 kHz crystal. Initial performance is expected to be equal to or better than ± 55 seconds per month at room temperature Outage carryover capacity  6 hours at 25 °C. Supercapacitor rated at 0.1 Farads, 5.5 V Battery (optional)  LiSOCl2 battery rated 800 mAhr, 3.6 V and shelf life of 20+ years. Five years continuous duty at 25 °CCommunications rate  Optical port  9600 baud (nominal) ITM3 option board  1200 bps or 2400 bps ILC1 900 MHz radio   17600 bps  Applicable Standards ANSI  C12.1  C12.10 C12.20 C12.18 C12.19 C12.21 TechnicalSpecifications
PG421005A A3 ALPHA Meter/CollectorJuly 2003 15DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY There are no understandings, agreements, representations, or warranties either express or implied, including warranties of merchantability or fitness for a particular purpose, other than those specifically set out by any existing contract between the parties. Any such contract states the entire obligation of the seller. The contents of this document shall not become part of or modify any prior existing agreement, commitment, or relationship. The information, recommendations, descriptions, and safety notices in this document are based on Elster Electricity, LLC experience and judgment with respect to operation and maintenance of the described product. This information should not be considered as all-inclusive or covering all contingencies. If further information is required, Elster Electricity, LLC should be consulted. No warranties, either expressed or implied, including warranties of fitness for a particular purpose or merchantability, or warranties arising from the course of dealing or usage of trade, are made regarding the information, recommendations, descriptions, warnings, and cautions contained herein. In no event will Elster Electricity, LLC  be responsible to the user in contract, in tort (including negligence), strict liability or otherwise for any special, indirect, incidental, or consequential damage or loss whatsoever, including but not limited to: damage or loss of use of equipment, cost of capital, loss of profits or revenues, or claims against the user by its customers resulting from the use of the information, recommendations, descriptions, and safety notices contained herein.
Elster Electricity, LLCRaleigh, North Carolina, USA+1 800 338 5251 (US toll free)+1 919 212 4800support@us.elster.comwww.elsterelectricity.comInformation herein is subject to change without notice. Productspecifications cited are those in effect at the time of publication.© 2003 by Elster Electricity, LLC. All rights reserved.Printed in the United States.

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