Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for ITRON Centron
Summary of Contents for ITRON Centron
- Page 1 CENTRON® Meter Technical Reference Guide Effective Date: October 2006...
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Page 2: Trademarks Used In This Manual
Proprietary Rights Notice 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. -
Page 3: Compliance With Fcc Regulations
Connect the equipment and the affected receiver to power outlets on separate circuits. Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved by Itron, Inc. could void the user’s authority to operate the equipment. RF Exposure Information This equipment complies with the FCC RF radiation requirements for uncontrolled environments. -
Page 4: Canadian Interference Causing Equipment Regulations
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. -
Page 5: Table Of Contents
Installing the Meter into Service ....................12 Programming the C12.19 C1SD,T, L Meter ................. 13 Retrofitting with Personality Modules ................... 13 Operation: Base Metrology ..................17 CENTRON 1S, 2S CL200, and 3S ....................17 CENTRON 2S CL320, 4S, 12/25S ....................19 CENTRON® Meter Technical Reference Guide... - Page 6 Type Codes ..........................42 Controls and Indicators ........................ 43 Modes of Operations ........................44 Normal Mode ........................44 Alternate Mode ........................44 Test Mode .......................... 45 Test Mode Timeout ....................45 Test Mode Lockout ....................45 Displays ............................45 CENTRON® Meter Technical Reference Guide...
- Page 7 Three Button Reset ......................63 RF Options ......................... 64 Testing, Troubleshooting, and Maintenance ............67 Testing Support Features ......................68 Infrared Test LED ....................... 68 Pulse Detector ........................68 Annunciators ........................69 Watthour Annunciators ....................69 TOU Rate Annunciators ...................70 CENTRON® Meter Technical Reference Guide...
- Page 8 Test Mode Switch Does Not Place Meter in Test Mode ............ 78 Inspecting and Troubleshooting—C1S LCD and C1SR .............. 78 Blank Display ........................78 Specifications and Drawings .................. 79 Specifications ..........................79 Drawings ............................79 Glossary of Terms ....................83 Index ......................... 87 viii CENTRON® Meter Technical Reference Guide...
- Page 9 Figure 16: C1S LCD Personality Module ..................21 Figure 17: Mounted C12.19 D/T/L Register ................. 22 Figure 18: ZRO-C2A Resetter Connected to the CENTRON ............23 Figure 19: Reverse Side of ZRO-C2A Resetter ................24 Figure 20: LCD ..........................24 Figure 21: Non-Detented Register ....................
- Page 10 Table of Figures Notes: CENTRON® Meter Technical Reference Guide...
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Page 11: General Information
Specifications ......................6 This technical reference guide explains the installation, operation, and maintenance of the Itron CENTRON® meter family. Itron urges you to read the entire manual before attempting installation, testing, operation, or maintenance of a meter. To operate the Itron PC-PRO+®... -
Page 12: General Description
General Description The CENTRON meter is a solid-state, singlephase and network meter used for measuring electrical energy consumption. The CENTRON incorporates a two-piece design combining a base metrology with a variety of personality modules that snap on the standard meter base. -
Page 13: Physical Description
General Information Figure 1: CENTRON Personality Modules Physical Description The CENTRON meter features a common meter base to which various personality modules are attached. The covers come in configurations of polycarbonate and glass. Meter Base The CENTRON meter base contains all of the measurement circuitry and calibration information on the metrology board. -
Page 14: Personality Modules
Figure 4: CENTRON 20 Amp Metrology Personality Modules All of the personality modules in the CENTRON meter family snap into the module holder located on the standard meter base as shown below. From the base metrology, the energy data is transmitted to the personality modules, which contain the meter display, communication mediums, and register functionality. -
Page 15: Product Availability
_ = D, T, or L Battery The CENTRON C1SD+Clock, C1ST, and C1SL modules contain a battery that powers the clock circuit during a power outage. The battery is permanently soldered to the module and is expected to last the life of the module. -
Page 16: Covers
General Information Covers The outer cover configurations available for CENTRON meter family are described below. Cover Options Meter Versions Polycarbonate Glass C1S, C1SR, C1SC Standard Optional Including Demand Reset + C12.19 C1SD, C1ST, C1SL Not Available Optical Tower Display Functions The C1S and C1SR modules can display kWh readings in either a 4x1, 4x10, or 5x1 configuration. -
Page 17: Characteristic Data
To get the watt loss or VA of the overall product, add the metrology watt loss to the register watt loss and option board watt loss. VA(Meter) = VA(Metrology) + VA(Register) Watt Loss(Meter) = Watt Loss(Metrology) + Watt Loss(Register) CENTRON® Meter Technical Reference Guide... -
Page 18: Technical Data
The following dimensional measurements are shown in inches and (centimeters). Figure 6: Dimensions Polycarbonate 6.29 6.95 2.70 3.16 4.53 (16.00) (17.70) (6.90) (8.00) (11.50) Glass 6.42 6.95 3.17 3.64 5.01 (16.30) (17.70) (8.10) (9.20) (12.70) CENTRON® Meter Technical Reference Guide... -
Page 19: C1Sd/C1St/C1Sl Dimensions
(17.70) Shipping Weights The following weight measurements are shown in pounds and (kilograms). Polycarbonate Glass Meter 1.38 (0.62) 2.75 (1.25) 4 Meters and Carton 8.90 (4.04) 13.96 (6.35) 96 Meter Pallets 214 (97.30) 335 (152.30) CENTRON® Meter Technical Reference Guide... - Page 20 General Information Notes: CENTRON® Meter Technical Reference Guide...
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Page 21: Installation
Save the original packing materials. Battery The CENTRON C12.19 C1SD + Clock, C1ST and C1SL (timekeeping) modules contain a battery that powers the clock circuit during a power outage. The battery is permanently soldered to the module and is expected to last the life of the module. -
Page 22: Unpacking
When using a Demand, TOU, or Load Profile meter where the line frequency is not stable, Itron recommends using either the C1ST or C1SL meter version with Crystal Time synchronization if a clock is needed (TOU or Load Profile). -
Page 23: Programming The C12.19 C1Sd,T, L Meter
9600 baud to 28,800 baud. Refer to PC-PRO+ Advanced documentation for detailed programming information. Retrofitting with Personality Modules CENTRON meters can be upgraded to increase functionality by changing the Personality Modules. Do not power ON the meter without the inner cover in place. Power the meter OFF before removing the inner cover. -
Page 24: Figure 8: Removing The Board-To-Board Connector
Snap the new module into the meter frame by aligning the notches at bottom of the circuit board with the lower two snaps. The module must be aligned properly in the snaps to avoid damaging the connector or circuit board. CENTRON® Meter Technical Reference Guide... -
Page 25: Figure 9: New Module Snap-In
The connector is seated correctly when you hear it snap into place. Figure 10: Circuit Board Notches Be sure to use the meter base for leverage instead of the LCD holder. Pressure on the LCD holder may damage the personality module. CENTRON® Meter Technical Reference Guide... -
Page 26: Figure 11: Board-To-Board Connector, Bottom
If not aligned correctly, the Demand Reset or Optical Connector will not function properly. If the Demand Reset plunger is not in the retracted position before turning the outer cover, the mechanism may be damaged. CENTRON® Meter Technical Reference Guide... -
Page 27: Operation: Base Metrology
CENTRON 2S CL320, 4S, 12/25S ..............19 CENTRON 1S, 2S CL200, and 3S The CENTRON meter is a solid-state meter which uses the inherent multiplication properties of the Hall Effect to measure power. The Hall Effect principle relies on a physical... -
Page 28: Figure 13: Power Measurement Principle In 2S Meter
From the power information available at the output voltage of the sensor, the meter architecture is simplified over previous designs as the multiplication has already taken place (see the Simplified CENTRON Architecture figure below). The Hall sensor output voltage is amplified by a differential amplifier in order to bring the signal within the nominal level of the analog to digital converter (ADC). -
Page 29: Centron 2S Cl320, 4S, 12/25S
This shift causes a small power factor error that is uniform across the dynamic range (load curve) of the meter. Itron compensates for this shift in the CENTRON by the use of a capacitor in the biasing current circuit. This correction is permanent. -
Page 30: Figure 15: Hall Cells And Adcs
The calibration is a digital feature and has no variation or adjustment. ADCs 1 and 2 are calibrated independently, which means that each phase is calibrated independently. Figure 15: Hall Cells and ADCs CENTRON® Meter Technical Reference Guide... -
Page 31: Operation: C1S Version
Net Register ......................25 Segment Check ....................26 Factory Programming Options................26 The kWh only version of the CENTRON meter is available with an LCD personality module to register energy accumulation. Figure 16: C1S LCD Personality Module The LCD module may be ordered with a 5x1 or 4x10 register for self-contained meters, and a 5xTR or 4xTR register for transformer-rated meters. -
Page 32: Physical Description (Personality Modules)
Operation: C1S Version Physical Description (Personality Modules) The CENTRON Personality Modules snap into the meter register mounting brackets to ease installation of the board. The LCD module is connected to the metrology board using the board-to-board connector. The following information is sent to the LCD module from the metrology board: ... -
Page 33: Resetting Values (Zro-C2A)
The device connects to the CENTRON meter through a hole in the plastic inner cover located at the 12 o’clock position on the meter. Extending from the ZRO-C2A is a cable terminating in a connector which mates to the programming connector of the CENTRON. -
Page 34: Lcd Display Function
The display may be configured for either four or five digits and will roll over at 100,000 kWh. This module is compatible with the ZRO-C2A Resetter. Figure 20: LCD CENTRON® Meter Technical Reference Guide... -
Page 35: Non-Detented Register
The Net (kWh) Register addresses applications requiring residential net metering points. Net kWh is the delivered kWh to the customer minus any received kWh from the customer. Net metering emulates a non-detented J5 meter. Figure 23: Net kWh CENTRON® Meter Technical Reference Guide... -
Page 36: Segment Check
5 digits x 1 kWh Factory programmable multipliers are available for CL20 (x20, x40, and x80) applications. This allows the meter to display and transmit via RF primary readings. Meters are labeled accordingly when factory programmed. CENTRON® Meter Technical Reference Guide... -
Page 37: Operation: C1Sr Version
The Itron CENTRON C1SR is a one-way, unlicensed radio frequency (RF) personality module that attaches to the CENTRON meter base (See the figure below). It offers a cost- effective solution for the endpoints in automatic and off-site meter reading applications. -
Page 38: Standard Consumption Message (Scm)
Within the 96-bit SCM, 26 bits are allocated to the module ID number for meter identification (also referred to as ERT ID number). As of October 15, 1999, all CENTRON C1SR meters utilize 26-bit identification numbers. -
Page 39: C1Sr Display
LCD, for resetting the energy register and tamper counters. This can be accomplished with the ZRO-C2A Resetter. The C1SR uses a unique module identification number (ERT ID), provided by Itron. This ID number is contained in each message transmission and is used by the handheld and billing system to determine meter identity and location. -
Page 40: C1Sr Electronic Detent
The C1SR module is available with the option of net metering capability. When the net option is enabled, received energy is subtracted from delivered energy. The net energy value is then displayed on the register. Net metering is not available with the IDM option. CENTRON® Meter Technical Reference Guide... -
Page 41: Resetting Values (C1Sr)
Testing the RF Message In order to confirm the CENTRON meter is transmitting SCM messages, the meter is capable of a "factory test mode." If the meter has less than 50 Watt-Hours of accumulated energy it will enter "factory test mode."... -
Page 42: Tamper Detection
Operation: C1SR Version Tamper Detection The CENTRON C1SR features the Itron patented method of tamper detection that senses both meter removal and meter inversion. The removal tamper (RTPR) increments a counter each time the meter is abruptly removed from a live meter socket. The tamper counter utilizes a tilt switch to detect when the meter is removed from a meter socket. -
Page 43: Retrofitting The C1Sr Personality Module
1111 Retrofitting the C1SR Personality Module 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. -
Page 44: Figure 27: C1Sr Fcc Label Location
Figure 27: C1SR FCC Label Location Changes or modifications not expressly approved by Itron could void the user's authority to operate the equipment. To retrofit an existing meter with a R300 module, see Retrofitting with Personality Modules (on page 13). -
Page 45: Operation: C1Sc Version
Register configuration. The utility billing ID is a value decided upon by the utility and Cellnet. The LAN address is a value that is assigned by Itron and programmed into every meter within the network. LAN addresses and utility billing IDs are unique to each meter. -
Page 46: Physical Description
16th packet (numbered 15). The following packet slides the information by two 2.5 minute intervals and continues for a total of nine transmissions. The information is then no longer in the sliding 45 minute window. CENTRON® Meter Technical Reference Guide... -
Page 47: Fcc Regulations
Title 47, Part 15, Subpart C, Paragraph 247 of the FCC rules. Display Functions The LCD is configured for five digits of energy consumption and will rollover at 100,000 kWh. The LCD is automatically adjusted for contrast over the operating temperature range. CENTRON® Meter Technical Reference Guide... -
Page 48: Resetting Values
Cellnet module. In order to communicate with the CENTRON Cellnet module, insert the programming slide into the hole in the inner cover of the CENTRON meter that is located at the 12 o’clock position as shown in the figure below. -
Page 49: Figure 31: C1Sc/Cn1Sc Programming Port Location
Operation: C1SC Version Figure 31: C1SC/CN1SC Programming Port Location CENTRON® Meter Technical Reference Guide... - Page 50 Operation: C1SC Version Notes: CENTRON® Meter Technical Reference Guide...
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Page 51: Operation: C12.19 C1Sd, C1St, And C1Sl Versions
Modes of Operations.................... 44 Displays ....................... 45 Optical Port ......................47 Programmable Functions ..................47 The CENTRON meter is available with interchangeable personality modules that snap-into the standard CENTRON metrology base. The three multifunction modules available include the following versions: ... -
Page 52: Features
D = Demand CN = Network R3 = 3 ERT T = TOU L = Load Profile The example above is a type code for a C12.19 TOU meter with RF capability transmitting 2 ERTs. CENTRON® Meter Technical Reference Guide... -
Page 53: Controls And Indicators
Figure 33: Controls and Indicators Liquid Crystal Display (LCD) Magnetic Switch Demand Reset Button Test Mode Button Optical Port Infrared Test LED Nameplate CENTRON® Meter Technical Reference Guide... -
Page 54: Modes Of Operations
Normal mode, each display in Alternate mode can have maximum of 3 alphanumeric characters to identify each item. Valid entries are A-Z, a-z and 0 through 9. The operations performed in Normal mode are identical to those in Alternate mode. CENTRON® Meter Technical Reference Guide... -
Page 55: Test Mode
Activating Test Mode Lockout via the programming software will prevent entry into Test Mode via manual Test Mode Switch activation. Displays The CENTRON meter features a versatile ANSI C12.10 compliant, 104 segment liquid crystal display (LCD). A nine-digit LCD, with a variety of annunciators, is provided on these multifunction personality modules. - Page 56 End of Interval—(Registers - Dmd) Indicators for phase voltage (not applicable in VA, VB, VC CENTRON C12.19 meters) are present during segment check Watt Disk Emulator - scrolls right for positive; scrolls left for negative Nominal Voltage Indicator (not applicable in CENTRON 120 240 277 480 C12.19 meters) are present during segment check...
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Page 57: Optical Port
28800 bps. Programmable Functions The CENTRON personality module can be programmed using the PC-PRO+ Advanced software. The table below depicts each display item available for each display mode. The display items and sequence of their display, along with any desired annunciators or Identification (ID) code numbers, are selected during the programming process. - Page 58 Register Fullscale Register Multiplier RF ID 1-3 Segment Test SnapShot 1-2 Self Read 1-4 Software Revision Number Test Subinterval Length Time Remaining in Demand Subinterval Time Remaining in Test Mode TOU Expiration Date User Data 1-3 CENTRON® Meter Technical Reference Guide...
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Page 59: Demand Registers
Test Mode is initiated, or when a Real Time Rate change occurs. The CENTRON meter demand calculations are performed using one of three possible methods: block, rolling, or thermal emulation. The demand method is selected when the register is programmed. -
Page 60: Block Interval Demand Calculation
Thermal Emulation The CENTRON meter will emulate the response of a thermal demand meter. This type of demand calculation is approximated exponentially. The meter will record 90% of a change in load in 15 minutes, 99% in 30 minutes, and 99.9% in 45 minutes. -
Page 61: Cumulative Demand Values
When using rolling demand, this quantity is updated after each subinterval. For thermal demand types, the previous demand value is equal to the present demand. CENTRON® Meter Technical Reference Guide... -
Page 62: Projected Demand
Multiple Peaks The CENTRON meter can measure the top five maximum demands for the quantities selected. The possible quantities include W d, W r, W net, and W uni. Demand Reset A demand reset can occur in both Normal and Alternate modes. -
Page 63: Cold Load Pickup
Self Reading and SnapShot Registers All CENTRON C12.19 D/T/L meters are equipped with two snapshot registers. The snapshot registers store self read data that was triggered by a demand reset. Snapshot 1 contains the most recent demand reset data. -
Page 64: Time-Of-Use
When using TOU functions on a meter, energy and demand registration are segregated into time blocks during the day. Each time block can be one of four rate periods. In addition to these four rate periods, a total rate is also available. CENTRON® Meter Technical Reference Guide... -
Page 65: Calendar Schedule
D. Only one of these rates can be active at a time. The Total register, designated Rate t, is always active, regardless of the active rate period. The CENTRON meter TOU rates are applied to all energy and demand registers that have been selected for measurement. Therefore, all energy and demand registers are segmented as per the TOU schedule and available in each rate period, in addition to the Total rate. -
Page 66: Registers
Operation: C12.19 C1SD, C1ST, and C1SL Versions Registers The CENTRON meter can measure up to four energies and ten demands. When the meter is configured for a TOU calendar, all energies and demands that are selected for measurement also have the configured TOU rates applied to them, with the exception of previous, projected, and instantaneous registers. -
Page 67: Load Profile Specifications
32,767, MV-90 will record a negative number (received value) for that interval. Itron recommends programming any D/T/L Register with load profile that is interrogated by MV-90 or any system that exports load profile information to MV-90 to use 15 bit resolution or 32,767 pulses per interval. -
Page 68: Interval Lengths
The maximum 16-bit data resolution is desired for 15 minute intervals. First, calculate the maximum watthour accumulation during 15 minutes intervals: Wh, Max = 240 V X 200 A X Iphase X 0.25 Wh, Max = 12,000 watt hours CENTRON® Meter Technical Reference Guide... -
Page 69: Data Storage
Refer to PC-PRO+ Advanced online help for a list of Load Profile Status Codes. In addition to the interval profile data and the interval status data, each block contains a time tag specifying the month, day, hour, and second of the end of the data block. CENTRON® Meter Technical Reference Guide... -
Page 70: Recording Duration
The C12.19 C1SD/T/L register has an Event Log that records historical events that have taken place in the meter. The events to be logged must be configured via the PC-PRO+ Advanced programming software. To aid in troubleshooting, Itron recommends enabling all events to be logged. -
Page 71: Security Codes
Security Codes Register security can be provided with primary, secondary, and tertiary security codes that prevent unauthorized communication with CENTRON products. A Primary security code allows complete access to the meter. A Secondary security code allows full read access with limited write access to perform an automatic demand reset and to access the Alternate and Test modes. -
Page 72: Firmware Upgrades
Add/Remove Programs in the Control Panel (Start | Settings | Control Panel) and reading the Support Information for the CENTRON meter firmware. The firmware version is also displayed each time you begin a firmware upgrade while logged on to a CENTRON meter. -
Page 73: Battery Life (Load Profile & Tou)
Operation: C12.19 C1SD, C1ST, and C1SL Versions Battery Life (Load Profile & TOU) The CENTRON meters with timekeeping functionality have a soldered battery present on their circuit boards. This battery powers the clock when AC power is interrupted to the meter. -
Page 74: Rf Options
Tamper, Event, and Alarms Indicator Behavior: Two bits are used to log the above alarm, event, and tamper occurrence Groups. All Indicators are "Non-Latching", meaning the R300CD/CD3 board continues to increment for each and every alarm, event, or tamper occurrence each time they happen. CENTRON® Meter Technical Reference Guide... - Page 75 Operation: C12.19 C1SD, C1ST, and C1SL Versions Event, Alarm, and Tamper Assignments for the CENTRON R300CD/CD3: For all Fatal Errors, the R300CD/CD3 module stops transmitting. For Non-Fatal Errors, transmission can be controlled via PC-PRO+ Advanced software. Tamper/Event/Alarm 1 SCM...
- Page 76 Enable TOU and select the TOU rate to be transmitted When using Type 8 ERTs, the format for the KWh value should be 7.2 (XXXXX.XX) and the format for the demand value should be 7.4 (XXX.XXXX). CENTRON® Meter Technical Reference Guide...
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Page 77: Testing, Troubleshooting, And Maintenance
Troubleshooting ....................72 Inspecting and Troubleshooting—General ............76 Inspecting and Troubleshooting—C1S LCD and C1SR ........78 This section provides information and instructions to help you test and maintain the CENTRON meter. Topics covered include: Testing support features Energy testing ... -
Page 78: Testing Support Features
Figure 34: Test LED Location Pulse Detector An optional pulse detector is available for the CENTRON meter. The pulse detector has an infrared pickup with two visible LEDs. When positioned over the CENTRON light pipe as shown in the figure below, it will produce a visible flash when an infrared pulse is received from the metrology. -
Page 79: Annunciators
Annunciators Watthour Annunciators The CENTRON meters equipped with LCDs, the watt disk emulator shows the direction of energy flow. The emulator will scroll left to right for positive (line to load) energy flow, and right to left for negative energy flow. -
Page 80: Tou Rate Annunciators
Figure 36: TOU Rate Annunciator Test Mode Annunciator The CENTRON meter is equipped with a Test Mode LCD annunciator located in the right portion of the display. This annunciator is enabled when Test Mode is activated. The word TEST appears on the display and flashes at a steady rate when test mode is activated. -
Page 81: Testing Using The Disk Emulation Annunciator
To determine the number of pulses per second, use the following equation: Testing Using the Disk Emulation Annunciator The CENTRON meter is capable of visually being tested by using the Watt Disk Emulation Annunciator. Recommended Energy Testing Procedures Testing solid-state meters on test boards that were designed primarily for electromechanical meters may give unexpected results. -
Page 82: Required Hardware
Required Hardware The typical field test setup consists of a phantom load, portable standard, and an infrared test pulse adapter with a counter or snap switch assembly. CENTRON meters purchased without a test link will require a more sophisticated loading circuit. - Page 83 Error with the file system. repair. Error7 Operating The meter has If the meter detects this System detected a problem problem, return the meter for Error with the operating repair. system. CENTRON® Meter Technical Reference Guide...
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Page 84: Non-Fatal Errors
Depending on the cause of the programmed. error, it can be cleared with a corrective reconfigure or with a TOU halted due set clock with a good battery to power down present. with dead or missing battery. CENTRON® Meter Technical Reference Guide... - Page 85 If a full scale overflow occurs, check the installation to ensure that the current capacity of the meter has not been exceeded. A full scale overflow error in no way affects the existing billing data. CENTRON® Meter Technical Reference Guide...
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Page 86: Inspecting And Troubleshooting-General
Testing, Troubleshooting, and Maintenance Inspecting and Troubleshooting—General Due to the modular architecture of the CENTRON meter, modules of similar voltage (120V or 240V) may be interchanged. Therefore, the personality module of the CENTRON you are troubleshooting can be placed on a known working base to verify proper operation of the personality module. -
Page 87: Software Cannot Communicate With Module
Solution Magnetic Field is too Weak Place magnet closer to switch or use stronger magnet. Reed Switch Failure Replace module. Alternate Mode Items Not Selected Re-program meter with items to be displayed in Alternate mode. CENTRON® Meter Technical Reference Guide... -
Page 88: Reset Mechanism Does Not Initiate Demand Reset
Inspecting and Troubleshooting—C1S LCD and C1SR Blank Display Power Not Applied to Meter—Apply voltage to the meter. Voltage Too Low for Meter Startup—the CENTRON meter requires at least 20% of nominal voltage to start up. Component Failure—Return the meter for repair. ... -
Page 89: Specifications And Drawings
In This Chapter Specifications ....................... 79 Drawings ......................79 Specifications For a complete list of the latest CENTRON meter specification numbers, refer to the CENTRON Meter Specification Numbers Bulletin, Part Number 428601-220. Drawings Figure 37: Form 1S Wiring Diagram CENTRON® Meter Technical Reference Guide... -
Page 90: Figure 38: Form 2S Wiring Diagram
Specifications and Drawings Figure 38: Form 2S Wiring Diagram Figure 39: Form 3S 120V Wiring Diagram CENTRON® Meter Technical Reference Guide... -
Page 91: Figure 40: Form 3S 240V Wiring Diagram
Specifications and Drawings LINE LOAD Figure 40: Form 3S 240V Wiring Diagram Figure 41: Form 4S Wiring Diagram CENTRON® Meter Technical Reference Guide... -
Page 92: Figure 42: Form 12S Wiring Diagram
Specifications and Drawings Figure 42: Form 12S Wiring Diagram Figure 43: Form 25S Wiring Diagram CENTRON® Meter Technical Reference Guide... -
Page 93: Glossary Of Terms
Demand is expressed in kilowatts, second trigger energy attained a peak. For example, kilovoltamperes, kilovars, or other suitable units. An Var demand when Watt demand attained a peak. interval may be 1, 5, 10, 15, 30, or 60 minutes. CENTRON® Meter Technical Reference Guide... - Page 94 Mode, or Toolbox Mode before automatically returning to Normal Mode. This time is programmable. Firmware The computer program stored in a read-only memory Non-volatile Memory (ROM) or an erasable programmable read-only memory (EPROM) integrated circuit. See Flash Memory. CENTRON® Meter Technical Reference Guide...
- Page 95 The 96-bit Itron® Standard Consumption Message protocol (SCM) provides the energy (kWh) consumption, module ID number, tamper indications, meter type, and error checking information in each radio frequency transmission.
- Page 96 Glossary of Terms Notes: CENTRON® Meter Technical Reference Guide...
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Page 97: Index
IDM Type 24 message • 28 Cellnet RF technology Interval Data Message (IDM) • 28 C1SC • 35 Cellnet Shooter • 38 CENTRON developer's kit • 17 kWh annunciator • 45 communication optical port • 42 communication problem • 77 comparator •... - Page 98 • 62 Test Mode • 70 TOU • 63 test mode annunciator • 45, 70 power outage • 54 test mode button • 45, 63 primary security code • 61 test mode switch • 45 protocol CENTRON® Meter Technical Reference Guide...
- Page 99 TOU schedule testing • 67 troubleshooting blank display • 76 communication problem • 77 general meter • 76 magnetic switch • 77 no accumulation • 76 utility billing ID • 35 watt disk emulator • 37, 45 CENTRON® Meter Technical Reference Guide...
- Page 100 Index Notes: CENTRON® Meter Technical Reference Guide...
Need help?
Do you have a question about the Centron and is the answer not in the manual?
Questions and answers
Display seems to have stop ? Frozen at 294
The display on the ITRON Centron is frozen at 294 because a fatal error has occurred. Fatal errors lock the display on the error code, and if multiple fatal errors occur, the one with the lowest number is shown. Error 294 indicates a fatal error that prevents normal meter operation, possibly due to corrupted billing data or a malfunction in the meter.
This answer is automatically generated
@Mr. Anderson can it be reset