FCC Part 15.247/15.249 Transmitter Certification Composite Device Test Report FCC ID: SK9AMI-1 FCC Rule Part: 15.247/15.249 ACS Report Number: 06-0239-15C-DSS, 06-0239-15C-DXX Manufacturer: Itron Electricity Metering Inc. Trade Name: CENTRON Open Way Model(s): CVSO, CVSOD, CVSOC Manual 5015 B.U.
CENTRON® OpenWay™ Meter Technical Reference Guide D ra ft Effective Date: September 26, 2006
This manual contains the trade secrets and confidential information of Itron, Inc., which are not to be divulged to third parties and may not be reproduced or transmitted in whole or part, in any form or by any means, electronic or mechanical for any purpose, without the express written permission of Itron, Inc. All rights to designs or inventions disclosed herein, including the right to manufacture, are reserved to Itron, Inc. The information contained in this document is subject to change without notice.
Compliance With FCC Regulations FCC Part 15, Class B This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Repair of Meters Under Warranty If the meter is under warranty, then Itron, Inc. will repair the meter at no charge if the meter has failed due to components or workmanship. A return authorization number must be obtained before the equipment can be sent back to the factory. Contact your Itron Sales Representative for assistance. Repair of Meters Not Under Warranty The same procedure as above applies. Itron will charge for the necessary repairs based on the failure. Service Return Address Itron, Inc.
Table of Contents Trademarks Used in This Manual .................................................................................................. ii Compliance With FCC Regulations .............................................................................................. iii FCC Part 15, Class B ......................................................................................................... iii RF Exposure........................................................................................
Table of Contents Demand Calculations ...................................................................................................................18 Block Interval Demand Calculation....................................................................................19 Rolling/Sliding Demand Interval Calculation .....................................................................19 Cumulative Demand Values ..............................................................................................
Table of Contents D ra ft TOU Schedules .................................................................................................................40 Calendar Schedule ..................................................................................................40 Rates .......................................................................................................................40 Daily Patterns ..........................................................................................
Table of Contents Other Problems .......................................................................................................66 Maintenance ......................................................................................................................68 Preventive Maintenance..........................................................................................68 Corrective Maintenance ..........................................................................................
Table of Figures D ra ft Figure 1: CENTRON OpenWay Meter Personality Modules .........................................................2 Figure 2: CENTRON OpenWay Meter Metrology..........................................................................3 Figure 3: CENTRON OpenWay Module Assembly .......................................................................4 Figure 4: CENTRON OpenWay Meter Type Codes ......................................................................
Table of Figures D ra ft Notes: x CENTRON® OpenWay™ Meter Technical Reference Guide
CHAPTER 1 General Information In This Chapter About This Manual ................................................................................................1 General Description ...............................................................................................2 Physical Description ..............................................................................................3 Product Availability...............................................................................................
General Information Chapter Title Description Specification Numbers and Drawings Provides a reference to meter part numbers and shows meter form drawings. General Description The CENTRON OpenWay meter is used for measuring electrical energy consumption. The CENTRON OpenWay meter incorporates a two-piece design combining a base metrology with a variety of OpenWay registers or options.
General Information Physical Description The CENTRON OpenWay meter features a common meter base to which various personality modules are attached. The cover is polycarbonate. Meters with the disconnect or integrated cell relay have an extended cover. Meter Base D ra ft The CENTRON OpenWay meter base contains all of the measurement circuitry and calibration information on the metrology board.
General Information ra Product Availability ft Figure 3: CENTRON OpenWay Module Assembly The current offerings for the CENTRON are: D Metrology Class 200, 240V , Form 2S Personality Modules Standard OpenWay Register OEM Communications Modules Additional Base Functionality CellRelay Remote Disconnect/Reconnect Display Functions The CVSO module can display up to 80 items between Normal and Test mode.
General Information Specifications Electrical Voltage Rating 240V Operating Voltage ± 20% (60 Hz); ± 10% (50 Hz) Frequency 60 Hz, 50 Hz Operating Range ± 3 Hz Battery Type: TADIRAN type 4902/PT Itron Part Number: 512766-001 Voltage 3.6 V nominal; 3.4 V - 3.8 V Carryover: 10-12 years Shelf Life: 15 years Temperature Humidity -40°C to +85°C 0% to 95% non-condensing ± 0.
General Information Burden Data Energy Only R300 (V&I) D/T/L R300CD/CD3 Voltage Watts VA Watts VA Watts VA Watts VA 120 0.773 1.38 0.791 1.22 1.25 1.86 1.25 1.86 240 1.03 1.91 1.09 1.79 1.53 2.6 1.53 2.6 277 1.38 2.13 1.16 2.18 1.65 2.87 1.65 2.87 480 1.84 3.38 1.91 3.57 2.39 4.43 2.39 4.43 Technical Data Meets applicable standards: ANSI C12.1 - 2001 (American National Standard for Electric Meters - Code for Electricity Metering) ANSI C12.
General Information Type Codes The type code indicates the metrology, version, base, functionality, and RF options in the meter. The type code is found on the nameplate of the meter.
General Information Dimensions The following dimensional measurements are shown in inches and (centimeters). CVSO C ra D B ft A E D Figure 5: CVSO Dimensions 8 A B C D E 6.29 (16.00) 6.95 (17.70) 3.84 (9.80) 4.30 (10.90) 5.67 (14.
General Information CVSOD, CVSOR, CVSOC A B C D tf E F a r Figure 6: CVSOD, CVSOC Dimensions A B 6.29 (16.00) 6.95 (17.70) C 3.84 (9.80) D CENTRON® OpenWay™ Meter Technical Reference Guide D E F 4.30 (10.90) 5.67 (14.40) 6.11 (15.
General Information D ra ft Notes: 10 CENTRON® OpenWay™ Meter Technical Reference Guide
CHAPTER 2 Installation In This Chapter Inspection.............................................................................................................11 Battery .................................................................................................................11 Storage .................................................................................................................11 Unpacking.............................................................................................
Installation Unpacking As with all precision electronic instruments, the meter should be handled with care in an outdoor environment. Follow these precautions when handling the meter: Avoid damaging the meter base, cover, reset mechanism (if supplied), and optical connector (if supplied). When handling personality modules, grip the circuit board by its edges. Do not touch the liquid crystal display. Save the original packing materials.
Installation Selecting a Site The meter is designed and manufactured to be installed in an outdoor environment, at operating temperature ranges between -40° C and +85° C (-40° F to +185° F). Operation in moderate temperatures increases reliability and product life. Installing the Meter into Service Install the meter base using standard meter installation practices. The current and potential terminals extend as blades, or bayonets, from the back of the meter.
Installation The module must be aligned properly in the snaps to avoid damaging the connector or circuit board. 7 Replace the board-to-board connector by aligning the top of the connector with the notches in the circuit board and pressing gently at the bottom of connector to mate the connector to metrology board. Then, gently press the top of the connector to mate it to the register module. The connector is seated correctly when you hear it snap into place.
CHAPTER 3 Operation: Base Metrology In This Chapter Metrology ............................................................................................................15 Surge Protection...................................................................................................16 Sampling ..............................................................................................................16 Voltage and Current Measurement ..................................................................
Operation: Base Metrology Surge Protection Surge protection for the electronics in the CENTRON OpenWay meter is provided by Metal Oxide Varistors (MOVs). MOVs are clamping devices that allow voltage up to a limit, and then increasingly conduct current to prevent the voltage from exceeding the limit. The MOVs on the power supply board are connected directly across the voltage inputs to the meter.
Operation: Base Metrology ft Voltage and Current Measurement ra Figure 9: Voltage and Current Measurement D Watthour (Wh) Measurement Watt-hours are measured by multiplying the instantaneous value of the voltage on each phase times the instantaneous value of the current on the same phase. The resulting values are added to the Wh accumulator. After the completion of two cycles, the registers are compared to a threshold. This threshold represents 0.025 watt-hours.
Operation: Base Metrology Volt-amperehour (VAh) Measurement The CENTRON OpenWay meter measures either Vectorial or RMS volt-amperes using arithmetic phase summation. The arithmetic method of measurement ensures that the resulting VAh value contains as much of the harmonic information as possible. Volt-ampere values are calculated by multiplying the RMS voltage value times the coincident RMS current value.
Operation: Base Metrology Block Interval Demand Calculation Block Demand calculations are based on user-defined interval lengths. The demand is the total energy accumulated during the interval divided by the length of the interval. At each end of interval (EOI), demand calculations are made and “EOI” can be displayed on the LCD. For block interval, demand calculations are made at the end of each completed demand interval. This method is similar to the way mechanical demand meters operate.
Operation: Base Metrology Continuous Cumulative Demand Values Continuous Cumulative Demand is the sum of the maximum demand and the cumulative demand at any point in time. At the end of each demand interval, if a new maximum demand is reached, continuous cumulative demand will also be adjusted to reflect this new maximum demand value. A demand reset will clear the maximum demand value, but will not affect the continuous cumulative demand.
Operation: Base Metrology Threshold Alarm Parameters Parameter Description Quantity Selects the demand register to which this threshold will apply. Threshold Value Sets the limit for this threshold event to be activated. • The valid range for Power Factor (PF) is 0.0 - 1.0 • For all others, the valid range is 1.0 - 500.000 Coincident Demand D ra ft Coincident Demand is the energy accumulated in an interval where a second trigger energy attained a peak.
Operation: Base Metrology D ra ft Notes: 22 CENTRON® OpenWay™ Meter Technical Reference Guide
CHAPTER 4 Operation: CVSO OpenWay Register In This Chapter ra ft Controls and Indicators........................................................................................24 Factory Reset .......................................................................................................28 Application of Power and Power-up....................................................................28 Power Down Procedures....................................................................................
Operation: CVSO OpenWay Register Controls and Indicators ft All controls and indicators are shown in the figure below. Callout M Description Liquid Crystal Display (LCD) D N ra Figure 11: Controls and Indicators Magnetic Switch O Demand Reset Button P Test Mode Button Q Optical Port R Infrared Test LED S Nameplate Infrared Test LED One infrared (IR) LED is located at the 3 o’clock position of the meter nameplate.
Operation: CVSO OpenWay Register Liquid Crystal Display (LCD) ra ft The CENTRON OpenWay meter features a versatile ANSI C12.10-compliant, 104-segment liquid crystal display (LCD). The LCD with all segments lit is shown in the figure below. There are several static indicators available on the LCD as described in the table below the figure.
Operation: CVSO OpenWay Register Load Emulator The Load Emulator follows the Infrared Test LED. For each pulse of the Test LED, the Load Emulator increments one segment. The operation of the Load Emulator depends on the quantity being pulsed. If the quantity being pulsed is “Delivered-Only”, then the Load Emulator scrolls to the right when energy is being delivered and lights the left arrow when energy is being received.
Operation: CVSO OpenWay Register Several uni-directional quantities are available. When these quantities are programmed to LED, both the LED and the load emulator will function for delivered and received quantities. Power Circle Quadrants The following power circle diagram shows the quadrants for watts and vars delivered and received.
Operation: CVSO OpenWay Register Factory Reset To return the meter to its original factory settings, you must perform a factory reset. A factory reset is also referred to as a “three button reset”. All programming of the meter will be lost when a factory reset is performed. All security codes are also cleared. When you perform a factory reset, the original factory settings of the meter are restored. Application of Power and Power-up To energize all electronics, apply 240V (50/60 Hz).
Operation: CVSO OpenWay Register Upon the return of AC power, the register undergoes a procedure similar to the initial power-up. The meter performs self-diagnostic checks, data is retrieved from non-volatile memory, and normal operation is resumed. The number of minutes of power outage maintained while the meter was in carry-over operation, is added to the Time on Battery register.
Operation: CVSO OpenWay Register Test Mode The meter can be placed into Test Mode through software communications. While in Test Mode, the “TEST” annunciator is displayed on the LCD. When the Test Mode is activated, all billing registers and certain non-billing registers are preserved in nonvolatile memory and restored when Test Mode is exited. Test Mode Timeout If the meter is left in Test Mode, the meter will automatically exit after a user-configurable Mode Timeout.
Operation: CVSO OpenWay Register All of the display items in the next two tables may be selected by TOU Rate. They also may be selected from the four Self Read buffers, the two Demand Reset Snapshot buffers, and Last Season Self Read buffer.
Operation: CVSO OpenWay Register Demand Data Display Item Display Mode Normal Alternate Test VA Delivered [arithmetic or vectorial] (Max, Present, Previous, Projected, Cumulative, Continuous Cumulative) X X X VA Received [arithmetic or vectorial] (Max, Present, Previous, Projected, Cumulative, Continuous Cumulative) X X X VA Lag (Max, Present, Previous, Projected, Cumulative, Continuous Cumulative) X X X Max A (per phase: A, B, C) X X PF Average X X Min P.F.
Operation: CVSO OpenWay Register Informational Data Display Item Display Mode Normal Alternate Test Toolbox4 X Display On Time X X Firmware Revision X X Last Outage Date & Last Outage Time X X Last Program Date & Last Program Time X X Last Reset Date & Last Reset Time X X Last Test Date & Last Test Time X X Load Profile Pulse Weight 1-8 X X Load Research ID X X Last Season Self Read Registers X X Meter ID & Meter ID 2 X X Minutes on
Operation: CVSO OpenWay Register Informational Data Display Item Display Mode Normal Alternate Test Transformer Ratio X X User Data 1-3 X X X Voltage Transformer Ratio X X Toolbox4 Magnetic Switch The magnetic switch enables scroll lock of display items as well as manual switching between display modes. The magnetic switch is located near the front of the meter face in the 9 o’clock position.
Operation: CVSO OpenWay Register While in Alternate Display Mode, the “ALT” annunciator on the lower left of the display designates activation of the Alternate Display Mode. Upon completion of the Mode Timeout period, the meter automatically returns to the Normal Display Mode. Toolbox Display Mode Toolbox Display Mode is identical to Normal Mode except that the list of displayable items is a fixed list dependent on the service type. You can enter the Toolbox Mode from either Normal or Alternate Mode.
Operation: CVSO OpenWay Register The per-phase Volt and Amp readings are Root-Mean-Square (RMS) values which are updated every second. The voltage and current angles are updated every five seconds. The direction of the load emulator is the same as the direction of energy flow for the phase being displayed. If any quantity is undefined due to the meter’s service, the per-phase information for that quantity will not be displayed.
Operation: CVSO OpenWay Register Any time-related activities, such as TOU rate changes or Daylight Savings Time (DST) changes that occur while the meter is in Test Mode, are performed upon exiting Test Mode. Test Alternate Display Mode Test Alternate Mode is functionally identical to Test Mode. To enter Test Alternate Mode, press the Test switch a second time. The “TEST” and “ALT” annunciators will be displayed. The meter will return to Normal Mode at the completion of Mode Time-out.
Operation: CVSO OpenWay Register Measured Energy Quantity Type Phases Volt-hours (Vh) phase A phase B phase C average Amp-hours (Ah) phase A phase B phase C V2h aggregate 2 Ah aggregate Q-hours aggregate Directions delivered received Demand Registers ra Measured Demand Quantity Type ft Demands can be calculated from any of the eight selected energy quantities. The user can configure up to ten demand registers.
Operation: CVSO OpenWay Register Instantaneous Registers The D/T/L Register is capable of displaying Primary or Secondary Instantaneous registers, with the following exceptions: Frequency, Power Factor (PF), and Phase Angles. The user can configure the CT and VT multipliers (transformer ratios) using PC-PRO+ Advanced programming software.
Operation: CVSO OpenWay Register Programming The software for programming this meter (PC-PRO+ Advanced) is a 32-bit Windows NT/2000/XP application. User-definable security codes in both the programming software and the meter prevent unauthorized access to the meter. Programming and/or interrogation of the meter can be accomplished through the optical port using a laptop PC and an optical probe.
Operation: CVSO OpenWay Register Daily Patterns Each pattern defines the times during the day that rate period A, B, C, or D begins and ends. Up to 24 rate period changes may be specified for each daily pattern. Day Types There are four day types: Weekday, Saturday, Sunday, and Holiday. Each day of the week is assigned to one of the four day types. Each day type is assigned one of the four daily patterns when each season is defined.
Operation: CVSO OpenWay Register Rate Annunciators and Active Rate Indicators Rate annunciators are available with each demand and energy register. An A, B, C, or D will be displayed on the far right side of the LCD to indicate the rate period for each quantity being displayed. The rate annunciator that may be displayed for the Total Rate is T. If the rate annunciator is flashing while a demand or energy value is displayed, the annunciator indicates that it is the current rate in effect.
Operation: CVSO OpenWay Register Load Profile Load Profile (mass memory) data is stored in blocks (records) of 128 intervals. The profile interval length is the same for all channels and is independent of the interval length for demand quantities. Each interval of load profile data is identified by date and time. Each interval contains status bits indicating the occurrence of outages, Test Mode, and other significant events or errors.
Operation: CVSO OpenWay Register Power Outage The D/T/L Register flags an interval when a power outage exceeds a specified number of seconds. The range for power outage length is programmable from 0 to 255 seconds and must not exceed the programmed interval length. During power outages the CENTRON OpenWay meter maintains all meter data as well as timekeeping functions. During an outage, billing data is stored in non-volatile memory.
Operation: CVSO OpenWay Register Since the pulse weight value must be a multiple of 0.01 in the meter, 0.03 Wh could be programmed as the pulse weight (Ke) for the kWh channel in load profile in this example. Data Storage The D/T/L Register uses non-volatile flash memory to record load profile data. Data is stored in load profile memory at the end of each interval. Each channel has 16 bits written to load profile memory. For example, consider 8 channels of load profile.
Operation: CVSO OpenWay Register The table below shows the recording duration (in days) for 144 kilobytes (KB) load profile memory size.
Operation: CVSO OpenWay Register Diagnostic 1 On—diagnostic 1 condition occurred Diagnostic 1 Off—diagnostic 1 condition went away Diagnostic 2 On—diagnostic 2 condition occurred Diagnostic 2 Off—diagnostic 2 condition went away Diagnostic 3 On—diagnostic 3 condition occurred Diagnostic 3 Off—diagnostic 3 condition went away Diagnostic 4 On—diagnostic 4 condition occurred Diagnostic 4 Off—diagnostic 4 condition went away DST Time Change—DST adjustment forward or backward has
Operation: CVSO OpenWay Register Security Codes The meter security codes provide protection for meter register and load profile data. Four levels of security are inherent in the D/T/L Register. The table below describes the level of access to the meter provided by each device security code. Once security codes are programmed and stored in the meter, users are required to logon to the meter with an appropriate password. The user may choose not to use security codes in the meter’s program.
Operation: CVSO OpenWay Register Implementing Security Codes When a customer file is created, security codes are entered by the software (PC-PRO+ Advanced) operator. Each security code may be from 1 to 20 characters long. For example, the primary code is selected to be ABC and the secondary code is to be 123. When the software first attempts to communicate with a meter that has just been delivered from the factory, the meter has only null security codes.
Operation: CVSO OpenWay Register Firmware Upgrades PC-PRO+ Advanced 7.2 and higher supports upgrading firmware for D/T/L Registers. When the firmware is upgraded, all billing data in the D/T/L Register is erased. After a D/T/L Register’s firmware is upgraded, you must re-initialize the meter.
Operation: CVSO OpenWay Register Each SCM message contains tamper information. Below is a chart that indicates the tamper information available in each SCM: SCM # Indicator # Group 1 1 Meter Inversion 1 2 Meter Removal 2 1 Demand Reset (Push Button) 2 2 Low Battery or End of Billing Schedule (1 Year from end) Warning 3 1 Billing Events 3 2 Non-Billing Warnings Tamper, Event, and Alarms Indicator Behavior: Two bits are used to log the above alarm, event, and tamper occurrence Groups.
Operation: CVSO OpenWay Register Tamper/Event/Alarm 1 SCM 2 SCMs 3 SCMs Mass Memory Error N/A N/A SCM 3 Indicator 1 Self Read Cleared N/A N/A SCM 3 Indicator 1 Meter Reconfigured N/A N/A SCM 3 Indicator 1 Energy Reconfigured N/A N/A SCM 3 Indicator 1 ANSI Security Fail N/A SCM 3 Indicator 2 Reverse Power Flow N/A N/A SCM 3 Indicator 2 Loss of Phase N/A N/A SCM 3 Indicator 2 SiteScan Error N/A N/A SCM 3 Indicator 2 ft 1 Requires register firmware addition for all meter
Operation: CVSO OpenWay Register Troubleshooting (fatal and non-fatal errors) Maintenance Visual Indicators The Infrared Test LED, as well as several other annunciators, assist you in testing and troubleshooting the CENTRON OpenWay meter. Infrared Test LED The meter is equipped with an Infrared (IR) Test Light Emitting Diode (LED) for testing meter accuracy; the LED is located at the top of the meter.
Operation: CVSO OpenWay Register ft When the meter is in Toolbox mode, the Load Emulator does not follow the Test LED. Instead, the operation of the Load Emulator depends on the quantity that is currently being displayed. If the quantity being displayed is a Phase quantity, then the Load Emulator scrolls to the right if energy flow on that phase is currently delivered or scrolls to the left if energy flow on that phase is currently received.
Operation: CVSO OpenWay Register Energy Testing The CENTRON OpenWay meter is a CL 0.2 accurate meter and requires no calibration adjustments. Verification of accuracy of energy and demand may be verified in many ways. Testing With the Infrared Test LED Verification of metered energy values by the meter can be accomplished by using the pulsing infrared LED located in the 12 o’clock position of the faceplate.
Operation: CVSO OpenWay Register Testing Using the Energy/Time Method As an alternate to the above methods, the energy accumulated by the registers and a reference standard can be read directly from the display and compared over a period of time. Energy readings displayed while the meter is in the Test Mode are in floating decimal format. This will result in maximum resolution for short duration tests.
Operation: CVSO OpenWay Register Recommendations Erroneous test results caused by the problems previously described can probably be corrected by implementing one of the following suggestions. Even if there are no bad readings, Solution 3 can cut the total test time significantly without sacrificing test verification certainty. The suggested solutions are: 1 Change the test sequence to avoid jogging before the light-load test. 2 Upgrade the test board to meet the requirements listed previously.
Operation: CVSO OpenWay Register 6 For element tests, the FL and PF pulses can be divided by the number of elements, always rounding up for fractional values. The total test time for a series FL, PF, LL sequence can be shortened by more than one minute compared to the time required for an electromechanical meter or a solid-state meter using the equivalent test constants. If LL element tests are used, the time savings will be much greater.
Operation: CVSO OpenWay Register Demand Test Method Connect the meter under test and the reference standard in the same circuit with all voltage coils in parallel and current coils in series as per standard meter testing procedures. ra ft 1 Figure 17: Test Connections 3 Apply rated voltage to the meter under test and the reference standard. Set the test current to the desired level (FL, LL, or PF test amps or any desired level within the meter rating).
Operation: CVSO OpenWay Register Meter Single Phase Test Constants (SPTC) Form 9 or 16 3Ø, 3W, 9, 16, or 14 3Ø, 4W, wye Series A Phase Only B Phase Only C Phase Only 0.911 .866 .0866 1 1 1 1 1 This test method is valid for kWh, kVAh, kvarh, kW, kVA, and kvar at any load or power factor. Demand Calculations With solid-state metering, conducting energy and demand tests may be considered redundant since they are both results of the same measurement.
Operation: CVSO OpenWay Register Calculation C: Actual KVA Hours kVAh = PT x Kh x N/ (1000*SPTC) where: N = Coil factor (See Testing With the Infrared Test LED) SPTC = Single phase test constant (See the table in Demand Test Method) Calculation D: Actual kVA Demand kVA = kVAh x 60/T where: T = Test Mode demand interval length in minutes Field Testing ra Required Hardware ft Field testing of the CENTRON OpenWay meter may be accomplished with conventional methods using either the infrared test pulses
Operation: CVSO OpenWay Register Troubleshooting Typically, meters are placed in a very unfriendly environment. While the CENTRON OpenWay meter is designed to perform within this harsh environment, things can go wrong with the meter or installation. Fatal Errors Fatal errors cause the display to lock on the error code because of the possibility that billing data may have been corrupted or that the meter may not be operating correctly.
Operation: CVSO OpenWay Register Fatal Errors Error Code Error Possible Cause Error Description Error4 Front End Processo r Error A problem has occurred with the metrology portion of the meter. If the meter detects this problem, return the meter for repair. FAt Error5 Power Down Error A problem has occurred while saving billing data at time of a power outage. The billing data has been corrupted.
Operation: CVSO OpenWay Register Non-Fatal Errors Error Code Err 1----- Error Low Battery Error Possible Cause(s) Battery Voltage Low Battery Not Connected Properly Error Description A low battery check is performed once a day and upon a set clock procedure. A low battery continues to function; however, its reliability decreases over time. As long as the meter is not powered down with a dead or missing battery, the meter will continue to function as normal.
Operation: CVSO OpenWay Register Non-Fatal Errors Error Code Err ----5- Possible Cause(s) Error Description Clock/ Load Profile Error Load Profile halted due to power down with dead or missing battery. This is tested upon power-up. Full Scale Overflow Error The calculated W delivered demand at an EOI exceeded the configured full scale value. This is tested at a demand EOI. The maximum demand register continues to accumulate and W delivered is still correctly displayed.
Operation: CVSO OpenWay Register Other Problems Demand Reset Cannot Be Initiated Through PC or Handheld Insufficient security. Communication cannot be established. See Programmer Cannot Communicate with Meter. Incorrect or No Accumulation of kWh or kW Demand Delay Selected—kW will not accumulate immediately after a power outage if Cold Load Pickup (demand delay) has been selected. Accumulation will begin immediately after demand delay has expired. Verify meter program and reconfigure meter.
Operation: CVSO OpenWay Register Programmer Cannot Communicate with Meter Optical Probe Cable Assembly Failure—Check cable with known meter that communicates. Check meter against known cable that is functioning. Also check batteries in cable assembly (if applicable). COM Port in Programmer Is Set Wrong—Verify proper COM port number has been selected in the setup routine of the programming software. If the wrong COM port is selected communications will not occur.
Operation: CVSO OpenWay Register Maintenance Preventive Maintenance No scheduled or preventive maintenance is necessary for the CENTRON OpenWay meter. Line potential may exist on the battery terminals. Follow these precautions: • • • • ft • • Never short-circuit batteries (such as by measuring current capability with an ammeter). Do not recharge batteries. Do not store or transport batteries in metal or other electrically conductive containers. Keep batteries separated.
CHAPTER 5 Operation: CP1SR Version In This Chapter Physical Description ............................................................................................70 FCC Regulations..................................................................................................70 Tamper Detection ................................................................................................70 Retrofitting the CP1SR Personality Module ........................................................
Operation: CP1SR Version Physical Description The CP1SR personality module is constructed of a flame retardant printed circuit board material which supports the discrete, surface-mounted, and integrated circuit components. A microstrip etched on the circuit board serves as the RF antenna. The CP1SR personality module easily snaps into the meter module mounting bracket. This module is then electronically attached to the metrology board via a board to board connector.
Operation: CP1SR Version 1 Place the meter in a socket. 2 Apply power to the meter. 3 Remove the meter from the live socket. 4 Replace the meter in the socket. The meter has incremented the removal tamper counter. The CP1SR uses the power outage (the meter being removed from a live socket) in conjunction with the meter being shaken simultaneously to increment the power removal counter. The inversion counter increments when the meter senses reverse current flow.
Operation: CP1SR Version Retrofitting the CP1SR Personality Module ra ft The CENTRON R300 is a one-way radio frequency personality module that transmits within the unlicensed 910-920 MHz frequency band governed by the US Code of Federal Regulations (CFR) Title 47, Part 15 Radio Frequency Devices, Sub Part C Paragraph 247 Intentional Radiator. Any device operating within this unlicensed frequency band must contain an FCC Identification number.
Operation: CP1SR Version Testing Support Features Infrared Test LED ra ft The CENTRON Polyphase CP1SR meter is equipped with an Infrared Test Light Emitting Diode (LED) (M in the figure below) where each pulse represents a fixed value of watthour measurement. The LED is located on the top of the meter as the meter is viewed from a typical installation. The pulse weight represented by the LED pulses is 1.0 watthour per pulse (Kh=1.0) for a Form 9S meter and 10.0 watthour per pulse (Kh=10.
ra ft Operation: CP1SR Version Figure 21: Pulse Detector D Annunciators Watthour Annunciators The CP1SR meters are equipped with three annunciators which show the direction of energy flow. The squares will scroll left to right for positive (line to load) energy flow, and right to left for negative energy flow. Each change in state of the watt disk emulator is equivalent to 1 x Kh.
Glossary of Terms A fixed decimal A display format that always retains the same number of digits to the right of the decimal point annunciator A Liquid Crystal Display (LCD) label that is displayed to identify a particular quantity being displayed floating decimal baud A display format that allows a maximum number of digits to the right of the decimal, but can display any number of digits to the right of the decimal equal to or less than that number specified Unit of data transmission signaling spee
Glossary of Terms S SCM D ra ft Standard Consumption Message 76 CENTRON® OpenWay™ Meter Technical Reference Guide
Index meter cover • 12 meter inversion • 70 meter removal • 70 meter storage • 11 metrology board • 70 module R300 • 69 A annunciator • 75 antenna RF • 70 B N base metrology • 15 baud • 75 button test mode • 13 nonvolatile memory • 75 non-volatile memory • 69 O C EEPROM • 75 electronic detent • 75 EPROM • 75 F firmware • 75 fixed decimal • 75 floating decimal • 75 ft P D E operating temperature range • 13 optical connector • 12 PC-PRO+ Advanced Programming Software • 1 personality module C1SR
Index Z D ra ft ZRO-C2 Resetter • 70 78 CENTRON® OpenWay™ Meter Technical Reference Guide
