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Summary of Contents for Sensus iCon APX
- Page 1 Technical Manual iCon APX Advanced Functionality Meter TM-iX0A-0805...
- Page 3 Technical Manual for the iCon APX Advanced Functionality Meter TM-iX0A-0805...
- Page 4 Information in the document is subject to change without notice and does not represent a commitment on the part of Sensus Metering Systems-North America Inc. The electricity meter described in this document is furnished under a license agreement or nondisclosure agreement. This document may be used or copied only in accordance with the terms of those agreements.
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Page 5: Table Of Contents
Hexadecimal Values........................1-3 Ranges ............................1-3 Register Notation and Usage......................1-3 Applicable Standards ......................... 1-4 CHAPTER 2 Meter Overview iCon APX Meter ............................ 2-1 Accuracy ............................2-1 Reliability............................2-1 Expandability ............................. 2-1 Tamper Resistance ..........................2-1 System Architecture ..........................2-2 Hardware ............................ - Page 6 Metering Constants ........................3-9 Diagnostics and Alarms ....................... 3-10 History Logs..........................3-11 Special Features ........................... 3-11 CHAPTER 4 Servicing the iCon APX Meter Meter Communication ........................... 4-1 Infrared Port ............................4-1 Remote Communications ........................4-1 Updating the Firmware .......................... 4-1 Resetting the Meter ..........................
- Page 7 Table of Contents kVA/kVAR Calculations ....................... 5-3 Data Transfer............................5-3 Calibration............................5-3 Register Display Board .......................... 5-3 Main Microprocessor ......................... 5-3 Non-Volatile Memory........................5-4 Power Supply ............................5-4 Demand Metering........................... 5-4 Demand .............................. 5-4 Block .............................. 5-4 Sliding ............................5-5 Peak ..............................
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Page 8: Introduction Overview
Figure 1-1: iCon APX Advanced Functionality Meter Overview This manual provides technical and support information for the iCon APX meter: • Socket: Form 9S (8S) 20 Amp • Socket: Form 16S (14S, 15S, 17S) 200 Amp Version 1.0... -
Page 9: Purpose
Failure to comply with these precautions or with specific warnings in this manual violates safety standards of design, manufacture, and the intended use of the metering instrument. Sensus Metering Systems assumes no liability for the customer’s failure to comply with these requirements. -
Page 10: Notational Conventions
Introduction Manual Conventions Notational Conventions Hexadecimal Values Hexadecimal values in this manual are expressed as follows: • Values that are in hexadecimal notation are shown as two or four (4) characters followed by the letter "h.” Each character can have a value from 0 through F. For example, 9C3Fh •... -
Page 11: Applicable Standards
Manual Conventions Introduction Applicable Standards The iCon APX meter meets or exceeds the ANSI standards for commercial and industrial electricity metering. Table 1-1: Applicable Standards ANSI C12.1 – 2001 American National Standard Code for Electricity Metering ANSI C12.13-1991 American National Standard Code for Electronic Time-of-Use Registers for Electricity Meters ANSI C12.18-1996... -
Page 12: Meter Overview
Reliability The iCon APX meter uses a simple, unique modular design that meets the most stringent performance requirements for revenue billing applications. This construction reduces the number of connections thereby reducing the possibility of false data or metering related problems. -
Page 13: System Architecture
• Are compliant with all applicable ANSI standards. NOTE: This manual describes some of the features available in iCon APX meters. At the time of order, specific options are selected for each utility. Not all features may appear in all meters. -
Page 14: Hardware
System Architecture Hardware The basic components of the meter are shown in Figure 2-2. Figure 2-2: iCon APX Meter Components Meter Base Assembly The Meter Base Assembly consists of the Meter Base, the Sensor Board, and related hardware. Figure 2-4 shows the Sensor Board in the Meter Base. - Page 15 System Architecture Meter Overview Figure 2-4 through Figure 2-6 provide views of the available APX meter Forms. Figure 2-4 shows a transformer rated Form 9S (8S) Meter Base. Figure 2-4: Form 9S (8S) Meter Base Figure 2-4 shows a Form 16S (14S, 15S, 17S) Meter Base. Figure 2-5: Form 16S (14S, 15S, 17S) Meter Base 2-4 Meter Overview TM-iX0A-0805...
- Page 16 Meter Overview System Architecture For self-contained meters, there is an optional Phantom Load version of the Meter Base. Figure 2-6 shows a Form 15S/16S Meter Base with the Phantom Load (closed position). Figure 2-6: Form 15S/16S Meter Base - Optional Phantom Load All meter bases provide knockouts for the option boards.
- Page 17 System Architecture Meter Overview Sensor Board The Sensor Board is a part of the Meter Base Assembly and consists of the sensing circuitry, buss bars, power supply, and connector ports. There are no field serviceable components in the base assembly. The module: •...
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Page 18: Register Cover Assembly
Meter Overview System Architecture Register Cover Assembly The Register Cover Assembly consists of: • Register Cover • Register Display Board • Interconnect Board • Option Boards Figure 2-8: Register Cover Assembly – Exploded View Version 1.0 Meter Overview 2-7... - Page 19 System Architecture Meter Overview Register Cover The Register Cover is an opaque shield that protects the meter’s internal components from external tampering and serves as the mounting surface for the labels. The cover also contains ‘pockets’ to house batteries that maintain the DC voltage for circuitry required to function during an outage;...
- Page 20 • Provide additional compliance information pertaining to an optional RF AMR module installed in the meter The following Note applies to iCon APX meters containing the Sensus MXU Model 530-T RF AMR module. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
- Page 21 System Architecture Meter Overview Register Display Board The Register Display Board (display board) consists of a Liquid Crystal Display (LCD), Alternate Mode button, Demand Reset button, Test Mode button, three option-board connections, and an optical port consisting of one (1) infrared LED and one (1) infrared LED sensor.
- Page 22 Meter Overview System Architecture Liquid Crystal Display The LCD provides meter reading and test information. The information on the LCD is visible in direct sunlight and can be read at angles of 15 degrees above and below the LCD centerline. Figure 2-11 shows the LCD’s Annunciators and Displays.
- Page 23 System Architecture Meter Overview M (Mega) — This Annunciator illuminates when the value shown by the Data Display is one million of a specified unit. k (kilo) — This Annunciator illuminates when the value shown by the Data Display is one thousand of a specified unit.
- Page 24 Meter Overview System Architecture Meters that do not have Reactive or Apparent energy measurements enabled will only be able to indicate the direction of the kWh energy. These meters will illuminate Quadrant 1 and Quadrant 4 to indicate energy flowing to a customer and Quadrant 2 and Quadrant 3 to indicate energy received from a customer.
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Page 25: Meter Cover
To ensure client satisfaction, the APX meter is designed to support additional features and upgrades through the incorporation of option boards which connect to Option Ports A, B, and C. Visit to the Sensus website for more information on these boards as more become available. Meter Cover The Meter Cover: •... -
Page 26: Metering Capabilities
Meter Overview Metering Capabilities Figure 2-13: Meter Cover After final set-up and calibration of the meter at the factory, the Meter Cover and Meter Base Assembly are sealed with a T-Bar. The RESET/ALT Lever can also be sealed using an industry-standard Demand Reset Seal. -
Page 27: Display Lists
Metering Capabilities Meter Overview Display Lists The meter maintains up to four (4) display lists. The contents of each list and the order in which items appear is configured using iConFig. Each list item is displayed as the meter scrolls through the list depending upon the meter’s operating Mode. -
Page 28: Diagnostic Display List
Meter Overview Metering Capabilities Test Mode Lock This feature allows a utility to run special tests that require the meter to remain in Test Mode even after temporary interruptions in power. When the Test Mode Lock feature has been activated, the meter starts back up (i.e., after power is restored after an outage) in Test Mode provided it is still within its configured timeout period. -
Page 29: Security
Metering Capabilities Meter Overview While in Diagnostic Mode, the meter continues to measure and store usage data in the billing registers. After the configurable timeout period has expired, the meter automatically reverts back to the Normal Display List. To manually exit Diagnostic Mode, use the RESET/ALT Lever to press the ALT button. -
Page 30: Operation
Operation Hardware Setup Chapter 3 The iCon™ APX Advanced Functionality Meter is configured using the iConFig™ application. This chapter provides brief descriptions of the Modules used to configure the meter. Refer to iConFig Start-up and User’s Guide for instructions on configuring the meter. Hardware Setup The information in this section is not intended to provide instructions to unqualified personnel nor replace the extensive training needed to safely handle the metering equipment. -
Page 31: Self-Contained Meters
Hardware Setup Operation Self-Contained Meters Some self-contained meters have Phantom Load links on the bottom of the Meter Base Assembly. Ensure the links are all up and secured with the screws. Figure 3-1: Phantom Load Links (closed) Calibration Check Do not permit unauthorized personnel to operate meter-testing equipment or to test meters. Hazardous voltages can be present, exposing personnel to the risk of death or serious injury, and exposing equipment to the risk of damage. -
Page 32: Testing
Operation Hardware Setup After completing the calibration check: Remove the meter from the test board. Close the Phantom Load links by: a. Loosening the lower screws on each link b. Sliding the links up until they stop Securely tighten all of the screws to prevent the slides from moving. Testing To interface with test equipment, the meter generates test pulses. -
Page 33: Ir Test Pulse Led Background
Hardware Setup Operation IR Test Pulse LED Background The iCon APX meter contains a Metering Chip that is used for the measurement of energy (voltage current). The test pulse signal is based on an output from this chip. This signal is routed up through the display board to the Infrared (IR) LED in the optical port on the face of the meter. -
Page 34: Display Board Check
Operation Hardware Setup UTEC/RFL – Windows software Enter Syslink DB Maintenance. Enter Meter Test under Testset Group. Select Testset. Edit SubTest. Enter Testpoint screen. Select Testpoint to edit. Change Stabilization Delay to 10 seconds. Save changes. If you have problems changing this in the UTEC software, call 800-952-8832. UTEC/RFL –... -
Page 35: Test Mode Operation
Installation Operation Test Mode Operation While the meter is in Display Mode, the Test Pulse correlates to the energy value that is visible on the LCD. NOTE: If the Display List item does not have an energy reading, the Test Pulse will correlate to the kWh present at the meter. -
Page 36: Meter Power-Up
Operation Installation Diagnostics and Alarms” below. Meter Power-Up NOTE: If the meter was in Test Lock or the Test Mode timeout period had not expired, the LCD will display the last item that was shown on the LCD at the time power was removed. -
Page 37: Configuring Apx Meters
Configuring APX Meters Operation Configuring APX Meters With iConFig, users can create or edit configuration programs that can be downloaded into APX meters. iConFig is a user-friendly software package that has been developed to configure, troubleshoot, and read the APX meter. iConFig is designed to be a flexible, Microsoft®... -
Page 38: Identification
Operation Configuring APX Meters Identification The Identification data contains information about the utility, the configuration program, vendor, and other meter data. The data in this Module is for informational purposes and has no effect on the operation of the meter. The following identification data are permanently stored in meter memory. -
Page 39: Diagnostics And Alarms
Configuring APX Meters Operation Diagnostics and Alarms The meter can be configured to monitor or ignore certain internal conditions and to display alarm codes should any of those condition be detected. The following items can be configured: • The conditions to monitor •... -
Page 40: History Logs
Operation Configuring APX Meters History Logs In addition to recording Diagnostic and Alarm events, the meter can record other events (e.g., outages, downloading configuration program, entering/exiting Test Mode). For Time-of-Use and Load Profile meters that have the Calendar function enabled, the time and date each event occurs is also stored. -
Page 41: Servicing The Icon Apx Meter Meter Communication
The firmware is stored in flash memory and can be easily loaded into the meter through its optical port. If it becomes necessary to update the meter’s firmware, Sensus Metering strongly recommends that all billing and meter data be backed up prior to the installation process. -
Page 42: Troubleshooting
• Hardware that appears to be missing or damaged Contact your sales representative to report meters that are damaged or that you suspect may be defective. Otherwise re-assemble the meter before proceeding with any tests. 4-2 Servicing the iCon APX Meter TM-iX0A-0805... -
Page 43: Installation Check
Check failure, it must fail for one minute (six consecutive tests). Likewise, once a Diagnostic Check has failed, the meter must pass for one minute for a failure to clear. This process prevents erroneous failures based on short-term load fluctuations. Version 1.0 Servicing the iCon APX Meter 4-3... -
Page 44: Replacement - Basic Components
In case there may be more than one alarm, Sensus recommends that, prior to clearing the alarms, you use iConFig to read the meter’s status information The status information will indicate all of the alarms that are present. -
Page 45: Replacement Of The Meter Cover
Remove the T-Bar Seal from the meter. Grasp the Meter Cover, and turn it counter-clockwise until it reaches a positive stop. Figure 4-1: Removing the Meter Cover Remove the Meter Cover from the Meter Base Assembly. Version 1.0 Servicing the iCon APX Meter 4-5... -
Page 46: Installing The Meter Cover
Figure 4-2: Installing the Meter Cover Install a new T-Bar Seal. Install a new Demand Reset Seal. Replacement of the Register Cover The instructions in this section provide the necessary steps required to replace the Register Cover. 4-6 Servicing the iCon APX Meter TM-iX0A-0805... -
Page 47: Removing The Register Cover
Sensor Board connector port. Use care not to over-extend the pins. Failure to observe this caution may result in damage to the meter. Carefully remove the Register Cover from the Meter Base Assembly to expose the internal components. Figure 4-4: Register Cover – Removal Version 1.0 Servicing the iCon APX Meter 4-7... -
Page 48: Installing The Register Cover
Use care not to over-tighten the captive screws. Failure to observe this Caution may result in damage to the bosses in the Meter Base. Securely tighten the Captive Screws to five (5) in-lb of torque. Install the Meter Cover. Refer to “Installing the Meter Cover” above. 4-8 Servicing the iCon APX Meter TM-iX0A-0805... -
Page 49: Replacing The Interconnect Board
Interconnect Board up and to the left. Figure 4-6: Removing the Interconnect Board Repeat Step 2 and Step 3, slowly working the Interconnect Board from side to side until it is free of the Register Display Board connector. Version 1.0 Servicing the iCon APX Meter 4-9... -
Page 50: Installing The Interconnect Board
Gently press the Interconnect Board into the connector on The Register Display Board until the board clicks into place. Install the Register Cover. Refer to “Installing the Register Cover” above. 4-10 Servicing the iCon APX Meter TM-iX0A-0805... -
Page 51: Replacing The Register Display Board
Remove the Interconnect Board. Refer to “Removing the Interconnect Board” above. Remove the screws securing the Register Display Board to the Register Cover. Figure 4-8: Removing the Register Display Board Carefully lift the display board out of the Register Cover. Version 1.0 Servicing the iCon APX Meter 4-11... -
Page 52: Installing The Register Display Board
Align the LCD with the rectangular opening in the Register Cover. Insert the Register Display Board into the Meter Base Assembly as shown in Figure 4-9. Figure 4-9: Installing the Register Display Board 4-12 Servicing the iCon APX Meter TM-iX0A-0805... - Page 53 If the meter continues to malfunction, the error may be in the Sensor Board or other meter component. Do not replace the Sensor Board. Contact your sales representative and Customer Service at Sensus Metering Systems. Refer to Sensus Metering Systems.
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Page 54: Theory Of Operation Metrology
Theory of Operation Metrology Chapter 5 This chapter describes the theory of operation for the iCon™ APX Advanced Functionality meter. Figure 5-1 supplements the information contained in this section. Figure 5-1: APX Meter Operational Overview Metrology The APX meter performs certain operations on the power present at the socket to provide accurate measurements. -
Page 55: Voltage Sensor
Metrology Theory of Operation Voltage Sensor Voltage on each phase is measured using a precision-resistive-divider that is designed to maintain a highly stable division ratio over temperature, humidity, and time. The signals from the divider feed into the Metering Chip. Inputs The two types of meter data are: •... -
Page 56: Kva/Kvar Calculations
Theory of Operation Register Display Board kVA/kVAR Calculations The Metering Chip calculates a +90 degree, phase-shifted current signal. The result is multiplied by the voltage signal to calculate reactive power (kVAR). The accumulation of reactive power over time provides the reactive energy (kVARh) measurement. The Metering Chip measures the instantaneous RMS current and voltage signals and multiplies them together to create apparent power (arithmetic) samples. -
Page 57: Non-Volatile Memory
Power Supply Theory of Operation Non-Volatile Memory Special algorithms have been employed to ensure the long-term validity of the data stored in 256 KB of flash memory. This memory is used to store all non-volatile data such as: • Meter configuration (iConFig created meter Program) •... -
Page 58: Sliding
Theory of Operation Demand Metering Sliding Sliding (Rolling) Demand is where intervals are divided into a fixed number of subintervals. Demand calculations are performed at the end of each subinterval instead of at the end of each interval. As in Block Demand, the interval length must be a factor of 60. The subinterval length must be a factor of the interval. -
Page 59: Outage Recognition
Demand Metering Theory of Operation Outage Recognition The meter can detect temporary interruptions in service. For Demand calculations, meters without Real-Time-Clocks (RTCs) “recognize” all interruptions in service as outages. Meters with RTCs can be configured to only “recognize” outages if they last more than the configured number of seconds. -
Page 60: Socket Wiring
Socket Wiring Form 8S Appendix A This appendix provides meter and ANSI compliant socket specifications. Form 8S The standard connections for the iCon™ APX Advanced Functionality Meter are made with blades that pass through the Meter Base into ANSI compliant sockets. Figure A-1 shows the socket wiring for a two-element, transformer-rated, three-phase, four-wire socket for Delta service connections. -
Page 61: Form 14S
Form 14S Socket Wiring Form 14S Figure A-3 shows the socket wiring for a two-element, self-contained, three-phase, four-wire socket for Wye service connections. Figure A-3: Socket Wiring - Form 14S Form 15S Figure A-4 shows the socket wiring for a two-element, self-contained, three-phase, four-wire socket for Delta service connections. -
Page 62: Form 17S
Socket Wiring Form 17S Form 17S Figure A-6 shows the socket wiring for a three-element, self-contained, three-phase, four-wire socket for Delta service connections. Figure A-6: Socket Wiring - Form 17S Version 1.0 Socket Wiring A-3... -
Page 63: Specifications
Specifications Meter Specifications Appendix B This appendix provides meter and ANSI compliant socket specifications. Meter Specifications Operating Table B-1: Operating Conditions Voltage 120 – 480 (96 – 576) VAC Current 0 to Class Amperes 45 – 65 Hz Rated Frequency 25°C ±... -
Page 64: Input
Meter Specifications Specifications Input Table B-4: Input Specifications Starting Current 5mA for Class 20 50mA for Class 200 Power Supply Burden 120V 2.2W 3.5VA 240V 2.8W 6.6VA 277V 2.4W 6.8VA Current Circuit Burden < 0.25 VA per phase at Test Amperes - Input voltage measured phase to Neutral. -
Page 65: Alarms, Diagnostics, And Errors
Alarms, Diagnostics, and Errors Codes Appendix C The tables in this appendix outline the codes for alarms and errors within the meter. Many of the codes can be configured by iConFig™ to be displayed on the meter’s LCD should certain conditions or events occur. -
Page 66: Alarm
Codes Alarms, Diagnostics, and Errors Alarm Codes Description Notes/Corrective Action No Program is present in the meter. 0008 Unprogrammed Download a Program into the meter. Meter memory is corrupted. 0013 Non-Volatile Memory Error Contact technical support. Real-Time-Clock (RTC) is malfunctioning. 0014 RTC Error Backup all of the meter data and contact technical support. - Page 67 Alarms, Diagnostics, and Errors Codes Alarm Codes - continued Codes Description Notes/Corrective Action 0112 Low Current Phase A The user configures the meter to monitor these thresholds. 0113 Low Current Phase B Corrective actions are determined by the utility’s standard 0114 Low Current Phase C procedures.
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Page 68: Diagnostic
Codes Alarms, Diagnostics, and Errors Diagnostic These diagnostics can turned On or Off with iConFig. The diagnostics are designed to assist the technicians and installers in diagnosing any error conditions within the meter and the service at the socket. Codes Description Notes/Corrective Action Diagnostic 1 (Polarity/Cross... - Page 69 Alarms, Diagnostics, and Errors Codes Error Codes - continued Codes Description 9101 RTC Error 9102 RTC Error 9103 RTC Error 9104 RTC Error 9111 RTC Error 9201 RTC Error 9202 RTC Error 9203 RTC Error 9306 Invalid NVRAM Version 9307 NVRAM Data Restore Error 930A NVRAM firmware version upgrade...
- Page 70 Index Index Conducting Blades. See Buss Bars Configuring Meters, 3-8 Connector Ports, 2-6, 2-14 120, 277, 240, 480 Indicators, 2-12 Continuous Cumulative Demand, 5-5 CT Ratio, 3-9 Cumulative Demand, 5-5 Activating Test Mode Lock, 2-17 Current Circuit Burden, B-2 ADE7758 Integrated IC Chip, 2-6 Current Magnitude Imbalance Check, 3-10 Alarm Codes, C-2 Current Sensor, 5-1...
- Page 71 Error! No text of specified style in document. Index Display Lists Infrared LED, 2-10, 2-13 Alternate, 2-16 Infrared LED Sensor, 2-10, 2-13 Diagnostic, 2-17 Infrared Port. See IR Port Normal, 2-16, 3-7 Input Specifications, B-2 Installation, 3-6 Test Mode, 2-16, 3-5 Display Mode, 3-6 Installation Check, 4-3 Downloading iConFig Programs, 3-8...
- Page 72 Index Meter Specifications Environmental Contitions, B-1 Maximums, B-1 Input Specifications, B-2 Meter Base Assembly, 2-3, 3-2 Maximums, B-1 Meter Communication, 4-1 Operating Conditions, B-1 Meter Configuration, 3-8 Physical Dimensions, B-2 Meter Cover, 2-14 Metering Chip, 3-4, 5-3 Installing, 4-6 Metering Constants, 3-9 Removing, 4-5 Metrology, 5-1 Meter Hardware, 2-3...
- Page 73 Sensor Board, 2-6 Installing, 4-12 Sensors Removing, 4-11 Current, 5-1 Registers Voltage, 5-2 Billing, 1-3 Sensus Metering Systems History Log, 1-3 Address, I-7 Previous Demand, 1-3 Email Address, 2-2 Status, 1-3 Fax Number, I-7 Test Mode, 3-6 Telephone Number, I-7...
- Page 74 Index Time-of-Use Registers, 5-3 Troubleshooting Display Board Check, 3-5 Tabs Installation Check, 4-3 ALT, 2-8 Shop Testing, 4-3 RESET, 2-8 Test Pulse K Outputs, 3-3, 4-3 TEST, 2-8 ShopTesting T-Bar Seal, 2-3, 3-1 Tempratures, B-1 IR Test Pulse LED, 3-4 Visual Check, 4-2 TEST Button, 3-5, 3-6 Missing Seals, 4-2...
- Page 76 Sensus Metering Systems 1501 Ardmore Boulevard, Suite 600 Pittsburgh, PA 15221 USA 1-800-METER-IT (638 - 3748) 1-800-888-2403 (fax) www.sensus.com TM-iX0A-0805...
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