Secure Liberty 100 Technical Reference Manual
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Secure Liberty 100 Technical Reference Manual

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Liberty 100 Smart Electricity Meter
Technical Reference Manual
BGX501-767-R02

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Summary of Contents for Secure Liberty 100

  • Page 1 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 2 Secure Meters Ltd. Other product names are trademarks or registered trade names of their respective owners. As part of Secure Meter’s continuous endeavour to improve product design, specifications mentioned are liable to change. Page 2 of 116...

  • Page 3: Table Of Contents

    Prepayment Mode ........................24 5.1.4 Diagnostic Mode ........................... 25 5.1.5 Commissioning Mode ........................25 Registers, Load Profile and Snapshots ....................... 25 5.2.1 Main Energy Registers ......................... 25 BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 3 of 116...
  • Page 4 5.16 Detecting and Logging Events ........................45 5.16.1 Hardware Events .......................... 46 5.16.2 Quality of Supply (QoS) Events ....................46 5.16.3 Tamper Events..........................46 5.16.4 Prepayment Events ........................47 Page 4 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 5 Energy Resolution ............................. 111 10 Glossary........................... 112 10.1 Terms Used in the Manual ..............Error! Bookmark not defined.112 10.2 Abbreviations and Acronyms ..............Error! Bookmark not defined.112 BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 5 of 116...
  • Page 6 Figure 8: Meter display in ‘Test Mode’ ........................14 Figure 10: Liberty 100 front and side views ......................21 Figure 11: Liberty 100 terminal bores at the bottom ....................21 Figure 12: Liberty 100 connection diagram ......................21 Figure 13: Liberty 100 Accounting zones in Prepayment mode ................32 Figure 14: Tariff Regime ............................
  • Page 7 Table 42: Key '7' Diagnostic display in Prepayment mode .................. 107 Table 43: Key '8' Diagnostic display in Prepayment mode .................. 107 Table 44: Key '9' Diagnostic display in Prepayment mode .................. 109 BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 7 of 116...

  • Page 8: About The Manual

    1 About the Manual This manual is intended for technical users and installers of Secure Meters’ Liberty 100 single-phase single-element electricity meter. It describes functions and features of the meter (application firmware version P4X2G04) and the Skyline-i 510 communication hub. The features and the displays may differ between application firmware versions.

  • Page 9: Product Overview And Operating Principle

    2 Product Overview and Operating Principle Liberty 100 is a single phase, single-element electricity meter that supports both Credit and Prepayment modes of operation for GB Smart Metering. It is used with a Skyline-i 510 intimate modular communications hub. The hub is mounted at the top of, and is powered by the meter. It serves as the communication gateway to the Head End System (HES) via a Wide Area Network (WAN) and other smart metering devices via a Home Area Network (HAN), and is a data mirror for the gas meter.

  • Page 10: Product Description

    The integrity of the meter seals should be checked periodically. LCD information window Liberty 100 has a backlit, monochrome LCD for displaying metering data, alerts and other relevant information. Keypad 12 keys, each 3.8 mm x 6.8 mm in size arranged in a 3x4 array provide the user interface for viewing data, acknowledgment of alarms and alerts and the means of manually entering prepayment UTRNs if the GPRS interface is not working.

  • Page 11: Front Cover

    Two sealable screws, one at the top beneath the communication module the other at the bottom beneath the sealable terminal cover secure the cover to the meter base. The enclosure is designed to IP52. Provision is provided for front cover open detection in power on and off conditions.

  • Page 12: Communication Module

    Provision is provided for terminal cover removal detection in power on and off conditions. The connection diagram is marked on the inside of the terminal cover. Figure 6: Inside of short terminal cover Page 12 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 13: Metrology Seal

    Maintenance of data held in RAM and NVRAM The battery will support the meter for two years in absence of mains power. Note: The battery is not field-replaceable. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 13 of 116...

  • Page 14: Power Supply Loss

    For internal (intimate) and external communications module the meter will provide a power supply of 4 V, 1.4 A. 3.3 Using the Display Liberty 100 uses a custom LCD display which supports a ten (10) character, alphanumeric starburst display along with icons for other relevant information. The height of the main characters is 7mm. The figure below shows the illuminated segments during Display Test.

  • Page 15: Display Icons

    Supply status icon: By default, Supply ON icon is displayed which indicates that user’s supply is connected. Supply OFF icon is displayed when the user’s supply is disconnected. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 15 of 116...

  • Page 16: Financial Display

    Displayed for 4 seconds Note: Default configurations in Auto Scroll and Manual Mode displays for Credit, Prepayment and Default operating modes are detailed in Annexe-I: Meter Displays. Page 16 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 17: Liberty 100 Keypad Functions

    3.4 Liberty 100 Keypad Functions The keypad keys of the Liberty 100 electricity meter are configurable to match supplier’s requirements. The default configuration of each key at manufacture is given below: Number keys (0-9) functions:  Used to display meter data in Prepayment and Credit modes.

  • Page 18: Firmware

    Note: The current firmware name and version are available in meter readings and are also available on the meter’s Diagnostic display. Page 18 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 19: Meter Specifications

    < 0.1 VA Voltage circuit < 2 W ,< 4 VA average (with Skyline-i 510 fitted) Metrology LED Red LED, 3200 pulses/kWh Contactor Integral, 100A, UC3 (IEC 62055-31) BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 19 of 116...

  • Page 20: Handling, Storage And Operating Conditions

    IP52 4.2 Handling, Storage and Operating Conditions Liberty 100 meter is an electronic device containing delicate components, and should be handled carefully during transit, storage and installation. The meter should be protected from physical vibration and shocks. Wherever possible the meter should be kept in its original packaging until it is installed at the customer’s site.

  • Page 21: Liberty 100 Dimension

    4.3 Liberty 100 Dimension The following diagram shows the outer dimensions of the Liberty 100 with the hub. All dimensions are in millimetres (mm): Figure 10: Liberty 100 front and side views The following diagram shows the terminal bore diameter, the distance between each terminal and the distance...

  • Page 22: Standards And External Certification

    4.5 Standards and External Certification The Liberty 100 meter with intimate hub conforms to the following standards: Electrical requirements EN 50470-1, EN50470-3 MID approval 0120/SGS0100 Environmental EN 60068-2-6 EN 60068-2-75 EN 60068-2-27 EN60529 IP52 Resistance to Heat and Fire EN 60695-2-10...

  • Page 23: Functional Specification

    18. Meter reading data 19. Upgrading meter firmware 20. Engineering Codes 5.1 Meter Operating Modes Liberty 100 meters can be pre-configured at manufacture to operate in one of the following modes as per the supplier request: a) Default mode b) Credit mode...

  • Page 24: Credit Mode

    Adding credit to the meter manually via UTRN entry at the meter or remotely via HES or IHD. Disconnecting and reconnecting supply Debt recovery Displaying latest five payment history Page 24 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 25: Diagnostic Mode

    Maintaining payment and time based debt payment history event log 5.1.4 Diagnostic Mode Only authorised users can access this mode by entering a 6-digit Engineering Code (common for all Liberty 100 meters) at the meter keypad. The meter can display the following information in diagnostic mode: ●...

  • Page 26: Maximum Demand (Md) Registers

    Load Profile survey data comprises the energy consumption recorded by the meter at the end of fixed intervals for a predefined number of days. Liberty 100 can be configured to store 395 days of half-hourly load profile data, 197 days of 15 minutes load profile data or 792 days of hourly load profile data for each energy channel on a first-in-first-out (FIFO) roll over basis.
  • Page 27 Midnight Snapshot Liberty 100 takes a daily snapshot of the energy registers at every midnight and stores the data for the last fourteen (14) days. The meter does not record midnight snapshots for any complete days when power was off for the complete day.

  • Page 28: Metrology Led

    5.3 Metrology LED Liberty 100 has a metrology LED which is set to flash at a rate proportional to the instantaneous power. Over time, the number of flashes corresponds to the amount of energy registered by the meter. The metrology LED emits 3200 flashes for each kWh measured.

  • Page 29: Time Keeping

    5.4 Time Keeping Liberty 100 clock maintains time in hours, minutes, and seconds format. All data logging (e.g. load survey data, events data, maximum demands and snapshots) and scheduled task activation (e.g. rate register switching, Friendly Credit timing, standing charge deduction etc.) take place using the standard time whereas tariff operations and displayed date and time use local time (i.e.

  • Page 30: Accounting

    Friendly Credit is a configurable non-disconnection regime that overrides account-related supply disconnection at certain times of the day, days of the week or on defined dates in the year such as public holidays. Liberty 100 operating in Prepayment mode supports this feature.

  • Page 31: Accounting Zones In Prepayment Mode

    5.5.4 Accounting Zones in Prepayment Mode Liberty 100 meters operating in Prepayment mode will have the following four accounting zones: ● Credit zone ●...

  • Page 32: Figure 13: Liberty 100 Accounting Zones In Prepayment Mode

    (depending on the configured rule), and generates a visual and audible alert for the user subject to the alarm suppression restrictions detailed in the Friendly Credit Section 5.5.3. ‘Low Credit’ threshold and ‘Low Emergency Credit’ threshold values can be configured remotely for Liberty 100 meters.
  • Page 33 Note: Users can mute audible alerts by pressing key ‘B’ on the meter or acknowledging them on the IHD. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 33 of 116...

  • Page 34: Debt Recovery Methods

    5.5.5 Debt Recovery Methods Liberty 100 meters operating in Prepayment mode can be configured to collect outstanding debts by two methods: • Payment based • Time based The meters can be configured to maintain a maximum of three debt registers from the following combinations: 1.

  • Page 35: Utrn Transactions

    Friendly Credit calendar which will be applied at the time of mode change from Credit to Prepay via a UTRN. The following information can be updated using the UTRN: BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 35 of 116...

  • Page 36: Meter Mode Changing Operation

    5.7 Meter Mode Changing Operation Liberty 100 supports local and remote runtime switching of its operating modes via the engineering service UTRN or on receipt of an authenticated command. It can be configured either with immediate effect or for a future date.

  • Page 37: Meter Configuration And Functionality

    HES. These future dated commands can be cancelled or overwritten by a new command. The following parameters are configurable in Liberty 100 meters via authenticated commands: ●...

  • Page 38: Tariff Configuration

    COT or COS. Note: Each of the above configurations can have different treatment rules for meter operation. 5.8.1 Tariff Configuration Liberty 100 can be configured with tariff regimes for the following three (3) energy types: 1. Import 2. Export 3.
  • Page 39 14:00 – 20:00 TOU3 20:00 – 00:00 Liberty 100 meters supports configuration of TOU tariff structure for 4 seasons, 4 weeks, 17 days, 12 switching points per day and 50 special dates. Block tariff registers Users are charged different tariff prices for different predefined kWh unit blocks of electricity. An example is...

  • Page 40: Data Disclosure

    5.9 Alerts and Messages 5.9.1 Account-based Prepay Alerts Liberty 100 operating in Prepayment mode displays visual alerts and sends audible alerts (see Figure 13) under the following circumstances based on the state of its account: ●...

  • Page 41: Supply Voltage Quality Monitoring

    5.10 Supply Voltage Quality Monitoring Liberty 100 supports monitoring, logging and profiling of the power supply voltage. The meter measures the average RMS voltage over a defined monitoring period which is configurable in 1, 2, 3, 4, 5, 6, 10, 12, 15, 20 or 30 minutes via an authenticated command.

  • Page 42: Load Limiting

    5.12 Load Limiting Liberty 100 meters support the following two types of load limiting when operating in Prepayment mode: 1. Supply capacity control 2. Reduced Emergency Credit load Load limiting for a SIP is skipped if there is a load limit configuration change, time setting, time synchronisation or power interruption during the averaging period.

  • Page 43: Change Of Tenancy (Cot)

    5.15 Meter Switch State The meters switch has three states – On, Off and READY and is driven to these states by the following events: BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 43 of 116...

  • Page 44: Ready' State

    2. Confirmation display cycle After pressing key ‘A’, the following confirmation display cycle will be shown for 30 seconds: followed by Page 44 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 45: Account Events

    Detecting and Logging Events The meter events should be checked periodically. Liberty 100 detects the following events and stores a maximum of one hundred (100) of each type on a rolling first in first out (FIFO) basis in separate storage groups: ●...

  • Page 46: Hardware Events

    5.16.3 Tamper Events Liberty 100 can be configured to disconnect the supply when it detects a tamper event and send alerts for such events to the HES. The meter is programmed to record the following as tamper events together with the date and time of their occurrence: ●...

  • Page 47: Prepayment Events

    Password change, meter lock or unlock, key change, HES public key change, security clearance grant or release, excessive firmware upgrades (more than twice per day) and excessive switch operations (more than ten per day). BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 47 of 116...

  • Page 48: Configuration Events

    15 minutes. 5.17 Communication Channels Liberty 100 with the Skyline-i 510 communication hub has the following communication channels: ● IEC 1107 optical port - this port, fitted on the meter is designated as Port-1 and is used to communicate with the meter locally.

  • Page 49: Meter Reading Data

    (if any) will be displayed on the meter’s display and the IHD (see Section 5.5.3). Diagnostic mode displays are displays to aid local diagnosis of the meter’s operation and are not accessible to users. See Annexe-II: Diagnostic Mode Displays. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 49 of 116...

  • Page 50: Changing The Alarm Suppression Period

    For example, the code ‘00000-02030-0630’ will suppress the alarm between 20:30 and 6.30. 5.20.2 Enabling Diagnostic Displays A 6-digit Engineering Code which is common for all Liberty 100 meters is used to enable the meter’s diagnostic display. If there is no user interaction with the meter in this mode, auto scroll display will resume in the current operating mode after the configured timeout period.

  • Page 51: Communication Hub (Skyline-I 510)

    Continuous OFF signifies no signal : HAN activity indicator LED • Continuous ON signifies HAN joining is allowed. • Continuous OFF signifies HAN joining is not allowed. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 51 of 116...

  • Page 52: Functions Of The Hub

    10 minute window could affect the meters ability to send a ‘last gasp’ message. 6.2 The Hub Rear View Figure 16: Inside of the Communication hub Page 52 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 53: 10-Pin Interface Connector Details

    2. Hold and gently pull the hub cover forwards to separate it from the meter’s 10-pin socket. 3. Replacement of the hub is the reverse of the above process. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 53 of 116...

  • Page 54: Future Hub Variants

    6. Align the 10-pin interface connector with the meter pin socket and carefully press to connect with the meter. 7. Tighten the two screws on the communications module to secure it to the hub with the meter’s base and seal.

  • Page 55: Annexe-I: Meter Displays

    7 Annexe-I: Meter Displays This section illustrates the displays that can be configured in the Liberty 100 meter operating in different modes. 7.1 Auto Scroll Display in Credit Mode The default display will show pertinent information relating to the meter’s credit mode of operation. For each display the timeout is two (2) seconds.

  • Page 56: Manual Display In Credit Mode

    The example shows that 8.5 kWh has been used (timeout 4 secs) today. Followed by value (timeout 4 secs) Page 56 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 57: Table 7: Key '1' Display In Credit Mode

    (Monday to Sunday). The example shows that £11.78 is the cost of (timeout 2 secs) electricity used. Followed by value (timeout 4 secs) BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 57 of 116...

  • Page 58: Table 8: Key '2' Display In Credit Mode

    Press key B to scroll back up the display list. No key press at the end of this display sequence will cause the auto-cycle display to resume. Table 9: Key '3' display in Credit mode Page 58 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 59 ‘August’. The example shows that 15.6 kWh was used in the (timeout 2 secs) month and its associated cost is £11.78. Followed by value (timeout 4 secs) BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 59 of 116...

  • Page 60: Table 10: Key '4' Display In Credit Mode

    The example shows that IMP R01 is the active import (timeout 2 secs) TOU rate register. Followed by value In the case of a hybrid tariff the active import hybrid Page 60 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 61 In the case of a hybrid tariff this set of displays will be replaced with the hybrid tariff rate register data and (timeout 2 secs) its cumulative value. Followed by value BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 61 of 116...

  • Page 62: Table 11: Key '6' Display In Credit Mode

    (4) seconds wait or short press of the key will advance the display to the next set of information as described below. Page 62 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 63 (timeout 2 secs) The example shows that 10.1 kVArh have been recorded. Followed by value (timeout 4 secs) Press key 9 to advance to the next display BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 63 of 116...

  • Page 64: Table 12: Key '9' Display In Credit Mode

    Press key 0 to advance to the next display. The 2 set displays the current time in the meter. Title 2: Current time In the example the time in the meter is 00:32:10. Page 64 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 65 24.10 kW is the power currently being exported. (timeout 4 secs) Press key 0 to advance to the next display. Title 5: CO emission data The 5 set initiates CO emission data display. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 65 of 116...
  • Page 66 The 9 set displays last week’s CO emission data. The example shows that 0.5 kg was last week’s CO emission. (timeout 2 secs) Followed by value Page 66 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 67: Utrn Entry From Credit Mode

    Displayed if the UTRN is valid. Displayed if the UTRN is rejected followed by the reason for rejection. Followed by BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 67 of 116...

  • Page 68: Auto Scroll Display In Prepayment Mode

    Prepayment mode. Followed by The 2 set displays the meter’s current account balance. Title: Account The example shows that £46.50 is the current account balance. Page 68 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 69 This set of displays will only appear when Emergency Credit account is exhausted. Title: No Emergency Credit left The example display shows £0.00 (no Emergency Credit left BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 69 of 116...
  • Page 70 ‘Days Left’ title will be followed by the ‘No Data’ value. Page 70 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 71: Manual Display In Prepayment Mode

    The example shows that £11.78 was the cost of (timeout 2 secs) electricity used. Followed by value (timeout 4 secs) BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 71 of 116...

  • Page 72: Table 16: Key '1' Display In Prepayment Mode

    The example shows that £11.78 was the cost of (timeout 2 secs) electricity used. Followed by value Page 72 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 73: Table 17: Key '2' Display In Prepayment Mode

    The 2 Title 2: Previous month’s cost previous month. The example shows that £11.78 was the cost of electricity used. (timeout 2 secs) BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 73 of 116...

  • Page 74: Table 18: Key '3' Display In Prepayment Mode

    £11.78. (timeout 2 secs) Followed by value (timeout 4 secs) Followed by value (timeout 4 secs) Press key 4 to advance to the next display Page 74 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 75: Table 19: Key '4' Display In Prepayment Mode

    (timeout 2 secs) from the credit added by the customer. Followed by value BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 75 of 116...
  • Page 76 TIME DEBT2 as shown here in the example. (timeout 2 secs) Followed by value (timeout 4 secs) Followed by value Page 76 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 77: Table 20: Key '5' Display In Prepayment Mode

    6 indicating the currently active tariff name. Title 1: Tariff name The example shows that ‘Green 20’ is the name of BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 77 of 116...
  • Page 78 The example shows that 15.6 kWh have been recorded in this register and 2.50 pence is the (timeout 2 secs) Page 78 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 79 (timeout 4 secs) Followed by value (timeout 4 secs) Press key 6 to return to the 1 display. Press key B to scroll back up the display list. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 79 of 116...

  • Page 80: Table 21: Key '6' Display In Prepayment Mode

    (timeout 2 secs) The examples indicate the following: Followed by value Emergency Credit cannot be enabled now, Emergency Credit is enabled, Emergency Credit is currently being used, Page 80 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 81: Table 22: Key '7' Display In Prepayment Mode

    In the example the 1 set of display indicates that the Friendly Credit period is currently on and will end at Followed by value 7:00 on 01/06/2012. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 81 of 116...

  • Page 82: Table 23: Key '8' Display In Prepayment Mode

    (4) seconds wait or short press of the key will advance the display to the next set of information as described below. Page 82 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 83 (timeout 2 secs) The example shows that 10.1 kVArh have been recorded. Followed by value (timeout 4 secs) Press key 9 to advance to the next display BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 83 of 116...

  • Page 84: Table 24: Key '9' Display In Prepayment Mode

    Press key 0 to advance to the next display. The 2 set displays the current time in the meter. Title 2: Current time In the example the time in the meter is 00:32:10. Page 84 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 85 (timeout 4 secs) Press key 0 to advance to the next display. Title 5: CO emission data The 5 display associated with key 0 initiates CO emission data. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 85 of 116...
  • Page 86 The 9 set displays last week’s CO emission data. The example shows that 0.5 kg was last week’s CO emission. (timeout 2 secs) Followed by value Page 86 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 87: Table 25: Key '0' Display In Prepayment Mode

    Press key B to scroll back up the display list. No key press at the end of this display sequence will cause the auto-cycle display to resume. Table 25: Key '0' display in Prepayment mode BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 87 of 116...

  • Page 88: Utrn Entry In Prepayment Mode

    The display ‘Rejected’ indicates that the vend UTRN is rejected and will be followed by the reason for rejection. Followed by ‘Duplicate’ indicates UTRN is rejected because a used UTRN is re-entered. Page 88 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 89 The displays followed by refund UTRN: The display ‘Accepted’ indicates that the refund UTRN is valid. This is followed by the refund UTRN. Followed by Followed by BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 89 of 116...
  • Page 90 Followed by ‘Duplicate’ indicates UTRN is rejected because a used UTRN is re-entered. ‘Invalid’ indicates UTRN is rejected because the UTRN is not meant for the meter. Page 90 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 91: Auto Scroll Display In Default Mode

    This display set Title: Cumulative export active rate register will not be displayed for import only meters. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 91 of 116...

  • Page 92: Manual Display In Default Mode

    (timeout 2 secs) Followed by value (timeout 4 secs) Press key 0 to advance to the next display. The 3 set displays the current date. Title 3: Current date Page 92 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 93: Table 28: Key '0' Display In Default Mode (Once The Meter Is Commissioned)

    If commissioning is not performed in the meter then a short press of key ‘0’ will display the following indicating that the meter is in commissioning mode: BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 93 of 116...

  • Page 94: Utrn Entry From Default Mode

    (5) consecutive invalid UTRN and this (timeout 4 secs) locks key ‘A’ for the configured timeout period. (timeout 20 secs) Table 29: UTRN entry from Default mode Page 94 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 95: Annexe-Ii: Diagnostic Mode Displays

    Diagnostic information from the meter can be only accessed by an authorised person from its diagnostic display mode; such information cannot be displayed outside of this mode. This mode is enabled by using a 6-digit Engineering Code common for all Liberty 100 meters. Accessing the Diagnostic mode: followed by <xxxxx-y>...

  • Page 96: Table 30: Key '1' Diagnostic Display In Credit Mode

    00: switch close. 01: supply disconnected manually. 04: supply off due to overload. 08: supply off due to an event. 10: supply disconnected via supply UTRN. Page 96 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 97: Table 31: Key '2' Diagnostic Display In Credit Mode

    Press key B to scroll back up the display list. Press key A to resume the auto-cycle display. Table 31: Key '2' Diagnostic display in Credit mode BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 97 of 116...

  • Page 98: Table 32: Key '3' Diagnostic Display In Credit Mode

    Press key B to scroll back up the display list. Press key A to resume the auto-cycle display. Table 32: Key '3' Diagnostic display in Credit mode Page 98 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 99 ‘00’ indicates the meter status is good. ‘01’ indicates the memory failure. ‘02’ indicates the clock is invalid. ‘04’ indicates the battery charge is low. ‘08’ indicates the battery failure. BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 99 of 116...

  • Page 100: Table 33: Key '4' Diagnostic Display In Credit Mode

    Press key 6 to advance to the next display The 2 set displays the number of times the meter Title 2: Power up counter has been powered up. Page 100 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 101: Diagnostic Displays In Prepayment Mode

    (timeout 2 secs) application firmware in which ‘04’ is the version number. Followed by value (timeout 4 secs) Press key 1 to advance to the next display BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 101 of 116...

  • Page 102: Table 36: Key '1' Diagnostic Display In Prepayment Mode

    02: supply off due to no credit in the account. 04: supply off due to overload. 08: supply off due to an event. 10: supply disconnected via supply UTRN. Page 102 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 103: Table 37: Key '2' Diagnostic Display In Prepayment Mode

    Press key B to scroll back up the display list. Press key A to resume the auto-cycle display. Table 37: Key '2' Diagnostic display in Prepayment mode BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 103 of 116...

  • Page 104: Table 38: Key '3' Diagnostic Display In Prepayment Mode

    Press key B to scroll back up the display list. Press key A to resume the auto-cycle display. Table 38: Key '3' Diagnostic display in Prepayment mode Page 104 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 105 ‘00’ indicates the meter status is good. ‘01’ indicates the memory failure. ‘02’ indicates the clock is invalid. ‘04’ indicates the battery charge is low. ‘08’ indicates the battery failure. (timeout 4 secs) BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 105 of 116...

  • Page 106: Table 39: Key '4' Diagnostic Display In Prepayment Mode

    (timeout 2 secs) The example shows that the meter is powered up 28 Followed by value times. (timeout 4 secs) Press key 6 to return to the 1 display. Page 106 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 107: Table 41: Key '6' Diagnostic Display In Prepayment Mode

    Press key B to scroll back up the display list. Press key A to resume the auto-cycle display. Table 43: Key '8' Diagnostic display in Prepayment mode BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 107 of 116...
  • Page 108 £11.78 is the vend amount. (timeout 2 secs) Followed by vend date 02/03/2014 is vend input date. (timeout 2 secs) 00:32:10 is vend input time. Followed by vend time Page 108 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 109: Table 44: Key '9' Diagnostic Display In Prepayment Mode

    Press key B to scroll back up the display list. Press key A to resume the auto-cycle display. Table 44: Key '9' Diagnostic display in Prepayment mode BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 109 of 116...

  • Page 110: Diagnostic Displays In Default Mode

    In this mode keys 3, 7, 8, 9 and 0 are not assigned with any functions hence will display ‘NOT USED’. All other keys have the same function as in ‘Credit Mode’ (see Section 8.1 Diagnostic Displays in Credit Mode). Page 110 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 111: Default Minimum And Maximum Values

    TOD Energy (Cumulative) 0.1 kWh 0.1 kWh 0.1 kWh 0.1 kWh Max Demand Load Profile (Consumption) 1 Wh High Resolution Energy (Cumulative) 1 Wh Accounts Calculation 0.05 kWh Page 111 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...

  • Page 112: Glossary

    Meter Point Reference Number Remote connection/ connecting/disconnecting supply using remote commands. disconnection Skyline-i 510 Internal communication hub mounted inside the hub cover of Liberty 100 electricity meter. The manual refers to it as the hub. UTRN Unique Transaction Number Wide Area Network...
  • Page 113 Notes BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 113 of 116...
  • Page 114 Notes Page 114 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02...
  • Page 115 Notes BGX501-767-R02 Liberty 100 Smart Electricity Meter Technical Reference Manual Page 115 of 116...
  • Page 116 Secure Meters (UK) Ltd Secure House, Moorside Road Winchester, Hampshire SO23 7RX United Kingdom : +44 1962 840048 +44 1962 841046...

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