Landis+Gyr E470 Series User manual

Electricity Meters BS/IEC/MID
ZCX310
E470 Series 3 SMETS2 100 mm
User Manual and Functional Description
ISSUE 1.2
Date: 02.05.2018
File name: D000058620 E470 Series3 SMETS2 User Manual and Functional Description ISSUE 1_2
© Landis+Gyr
D000058620 en a

2/143 Issue 1.2 Revision history
© Landis+Gyr D000058620 en a –E470 Series 3 SMETS2 100 mm –ZCX310 –User Manual and Functional Description
Revision history
Version
Date
Comments
1.0
04.07.2017
First version of Series 3 (100mm) document
1.1
01.02.2018
Corrected discrepancy in the reactive energy unit in section 5.2.2, the IST mode
timing specification in section 15, the sequence of actions required to access the
Service menu in section 19 and consumer message handling in section 24.
1.2
02.05.2018
Further revisions applied which include:
IST mode –decimal places
Consumer message text
Section 13 –Table 9 –completely rewritten.(new functionality in 38.03.06.00)
LCD examples are updated to show better representations against actual
(formatting and positioning of displayed characters).
Corrections to default display screen to reflect latest changes introduced from
firmware 38.03.06.00.
Although the information contained within this document are presented in good faith and believed to be correct, Landis+Gyr (including its
affiliates, agents and employees) disclaim any and all liability for any `s, inaccuracies or incompleteness relating to the product. Landis+Gyr
makes no warranty, representation or guarantee regarding the performance, quality, durability or suitability of the products for any particular
purpose. To the fullest extent permitted by law Landis+Gyr disclaims (1) any and all liability arising out of the use of the product, (2) any and
all liability, including, but without limitation to, special, consequential and indirect damages and losses, and (3) any and all implied
warranties, including, but without limitation to, fitness for purpose and merchantability.
The information contained in this document is strictly confidential and is intended for the addressee only. The unauthorised use, disclosure,
copying, alteration or distribution of this document or the contents thereof is strictly prohibited and may be unlawful.
All product information are subject to change without notice.

Table of contents Issue 1.2 3/143
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Table of contents
1Safety...........................................................................................................................................9
1.1 Safety information...................................................................................................................9
1.2 Responsibilities.......................................................................................................................9
1.3 Meter Operator Code of Practice.............................................................................................9
1.4 Safety regulations .................................................................................................................10
2Compliance to SMETS2............................................................................................................11
3Functional overview .................................................................................................................12
3.1 Main characteristics ..............................................................................................................12
3.2 Technical details ...................................................................................................................13
3.3 Type designation...................................................................................................................14
3.4 Metrological functions............................................................................................................15
3.5 Clock information ..................................................................................................................15
3.5.1 Accuracy..........................................................................................................................16
3.5.2 Date and time..................................................................................................................16
3.5.3 Validity.............................................................................................................................16
3.5.4 Daylight saving time.........................................................................................................16
3.5.5 Deviation to GMT.............................................................................................................17
3.6 Battery backup......................................................................................................................17
3.7 Operational modes................................................................................................................17
3.7.1 Credit mode.....................................................................................................................17
3.7.2 Prepayment mode ...........................................................................................................18
3.8 Load limiting..........................................................................................................................18
3.9 Customer privacy PIN ...........................................................................................................19
3.10 Non-Disablement calendar....................................................................................................19
3.11 Rolling register displays ........................................................................................................19
3.12 Boost function.......................................................................................................................19
3.13 Remote commands...............................................................................................................19
3.14 Environmental performance ..................................................................................................20
3.14.1 General environment .......................................................................................................20
3.14.2 Temperature and humidity...............................................................................................20
3.14.3 Mechanical strength of meter case ..................................................................................20
4Physical description.................................................................................................................21
4.1 Meter construction.................................................................................................................21
4.2 Intimate communications hub interface (ICHI).......................................................................22
4.3 Meter faceplate .....................................................................................................................23
4.4 Control elements...................................................................................................................24
4.5 Metrology LED ......................................................................................................................24
4.6 LCD display...........................................................................................................................24
4.7 Terminal area........................................................................................................................28
4.7.1 Connection diagram.........................................................................................................29
4.7.2 Auxiliary load control switch relay output .........................................................................29
4.7.3 Dimensions......................................................................................................................30
4.7.4 Auxiliary cable strain relief method...................................................................................30
5Meter Displays ..........................................................................................................................32
5.1 Display and navigation structure ...........................................................................................32
5.2 Display examples..................................................................................................................32
5.2.1 Time displays...................................................................................................................32
5.2.2 Total registers..................................................................................................................32
5.2.3 Rate registers..................................................................................................................33
5.2.4 Instantaneous values.......................................................................................................34

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5.2.5 Active firmware version ................................................................................................... 34
5.2.6 MID displays....................................................................................................................35
5.2.7 Charge displays ..............................................................................................................35
5.3 Credit mode status displays..................................................................................................35
5.3.1 Credit mode balance.......................................................................................................35
5.3.2 Supply armed ready for reconnection.............................................................................. 35
5.3.3 Supply disabled due to remote disconnection.................................................................. 35
5.3.4 Customer PIN enabled but not entered ........................................................................... 36
5.3.5 Load limit exceeded ........................................................................................................36
5.4 Prepayment displays ............................................................................................................36
5.4.1 Remaining credit............................................................................................................. 36
5.4.2 Credit low........................................................................................................................ 36
5.4.3 Credit exhausted and emergency credit available ........................................................... 36
5.4.4 Emergency credit available with remaining credit............................................................ 37
5.4.5 Emergency credit accepted............................................................................................. 37
5.4.6 Emergency credit accepted but not in use.......................................................................37
5.4.7 Emergency credit accepted and in use............................................................................ 37
5.4.8 Emergency credit low and owed......................................................................................37
5.4.9 Emergency credit exhausted and owed........................................................................... 38
5.4.10 Prepayment displays with active non-disablement...........................................................38
5.4.11 Emergency credit in use –active non-disablement period............................................... 38
5.5 Debt management displays ..................................................................................................39
5.5.1 Payment based debt displays.......................................................................................... 39
5.5.2 Time based debt displays................................................................................................ 39
6Installation and Commissioning ............................................................................................. 41
6.1 Before installation................................................................................................................. 41
6.2 Mounting the meter............................................................................................................... 42
6.3 Connecting the meter ...........................................................................................................43
6.3.1 Connecting the phase and neutral connection wires........................................................ 43
6.3.2 Connecting a separate auxiliary load control switch ........................................................44
6.3.3 Connecting the intimate communications hub to the meter.............................................. 44
6.4 Commissioning and functional check....................................................................................46
6.5 HAN joining process.............................................................................................................46
6.5.1 Option 1 - Automatic process (Recommended)............................................................... 47
6.5.2 Option 2 –Manual HAN Join & Commissioning Process.................................................49
6.5.3 HAN Join & Commissioning Steps ..................................................................................49
6.5.4 Meter Commissioned Check ...........................................................................................52
7Security aspects....................................................................................................................... 57
7.1 General................................................................................................................................. 57
7.2 Tamper protection.................................................................................................................58
7.2.1 Sealing............................................................................................................................58
7.2.2 Fraud detection............................................................................................................... 58
7.3 Calendar clock accuracy and settings................................................................................... 59
7.4 Security log...........................................................................................................................59
7.5 Communication with other devices .......................................................................................59
7.6 Data reconciliation................................................................................................................ 60
7.7 Unique transaction reference number (UTRN)......................................................................60
7.8 Security credentials .............................................................................................................. 60
8Energy Registers...................................................................................................................... 61
8.1 Overview ..............................................................................................................................61
8.2 Resolution ............................................................................................................................62
8.3 Accuracy...............................................................................................................................62
8.4 Total energy registers........................................................................................................... 62
8.5 Rated energy registers ......................................................................................................... 62

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8.6 Average and maximum demand............................................................................................62
9Configuration............................................................................................................................64
9.1 Introduction...........................................................................................................................64
9.2 Default hardware configuration..............................................................................................64
9.3 Default software configuration...............................................................................................64
10 Prepayment functionality.........................................................................................................70
10.1 Prepayment supply control switch status cycle......................................................................70
10.2 Accumulated debt register.....................................................................................................70
10.3 OWED register (debt to clear)...............................................................................................70
10.4 Credit top ups........................................................................................................................71
10.5 Manual entry of a credit top up code .....................................................................................71
10.5.1 Emergency credit.............................................................................................................72
10.5.2 Credit deductions from prepaid credit or emergency credit ..............................................73
10.5.3 Non-Disablement calendar ..............................................................................................73
10.6 Debt management.................................................................................................................74
10.6.1 Payment based debt collection........................................................................................74
10.6.2 Time based debt collection..............................................................................................75
10.6.3 Suspend debt emergency................................................................................................75
10.6.4 Suspend debt disabled flag..............................................................................................76
10.6.5 Maximum Meter Balance.................................................................................................76
11 Supply control switch ..............................................................................................................77
11.1 Overview...............................................................................................................................77
11.2 Supply control switch states..................................................................................................78
11.3 Reconnection procedure.......................................................................................................79
11.3.1 Normal reconnection process (Credit mode)....................................................................79
11.3.2 PIN protected reconnection process (Credit mode)..........................................................79
11.3.3 Reconnection when in prepayment mode........................................................................80
11.4 Load limit restoration period..................................................................................................80
12 Customer privacy PIN ..............................................................................................................81
12.1 PIN entry dialogue.................................................................................................................82
12.2 PIN edit dialogue...................................................................................................................83
13 Rolling registers .......................................................................................................................84
14 Credit mode...............................................................................................................................87
14.1 Display and navigation structure in credit mode ....................................................................87
14.2 Top level display structure –credit mode ..............................................................................88
14.3 Default display.......................................................................................................................88
14.4 All segment display...............................................................................................................89
14.5 Tariff display list ....................................................................................................................89
14.6 PIN entry...............................................................................................................................90
14.7 Credit mode status................................................................................................................91
14.8 Boost function.......................................................................................................................92
14.8.1 ALCS boost support.........................................................................................................93
14.8.2 Activating the boost period...............................................................................................94
14.8.3 Boost activation period.....................................................................................................94
14.8.4 Currently active boost period ...........................................................................................94
14.8.5 Cancel boost period.........................................................................................................94
14.8.6 Extending the boost period..............................................................................................94
14.9 Customer menu.....................................................................................................................95
14.9.1 Manage PIN.....................................................................................................................96
14.9.2 View event log .................................................................................................................97
14.9.3 View power log ................................................................................................................97
14.9.4 Manage ALCS .................................................................................................................97

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14.9.5 Join HAN.........................................................................................................................97
14.10Rolling display list................................................................................................................. 97
14.11Reconnect supply load switch............................................................................................... 98
14.12Service menu........................................................................................................................ 98
14.12.1 In-Service test mode.................................................................................................99
14.12.2 Leave/join HAN....................................................................................................... 100
14.12.3 Display security log................................................................................................. 100
14.12.4 Exit service menu.................................................................................................... 100
15 Prepayment mode.................................................................................................................. 101
15.1 Display and navigation structure in prepayment mode........................................................ 101
15.1.1 Overview....................................................................................................................... 101
15.2 Top level display structure –prepayment mode.................................................................. 102
15.3 Default display.................................................................................................................... 102
15.4 All segment display............................................................................................................. 103
15.5 Tariff display list.................................................................................................................. 103
15.6 PIN entry ............................................................................................................................ 104
15.7 Prepayment mode status.................................................................................................... 105
15.8 Boost function..................................................................................................................... 107
15.8.1 ALCS boost support...................................................................................................... 108
15.8.2 Activating the boost period............................................................................................ 108
15.8.3 Boost activation period.................................................................................................. 108
15.8.4 Currently active boost period......................................................................................... 108
15.8.5 Cancel boost period ...................................................................................................... 108
15.8.6 Extending the boost period............................................................................................ 108
15.9 Customer menu.................................................................................................................. 109
15.9.1 Manage PIN.................................................................................................................. 110
15.9.2 View event log............................................................................................................... 111
15.9.3 View power log.............................................................................................................. 111
15.9.4 Manage ALCS............................................................................................................... 111
15.9.5 Join HAN....................................................................................................................... 111
15.10Rolling display list............................................................................................................... 111
15.11Reconnect supply load switch............................................................................................. 112
15.12Emergency credit and add credit dialogue.......................................................................... 112
15.12.1 Emergency credit activation.................................................................................... 112
15.12.2 Add credit ............................................................................................................... 113
15.12.3 Invalid / already used UTRN entry .......................................................................... 113
15.13Service menu...................................................................................................................... 114
15.13.1 In-Service test mode............................................................................................... 115
15.13.2 Leave/join HAN....................................................................................................... 115
15.13.3 Display security log................................................................................................. 115
15.13.4 Exit service menu.................................................................................................... 115
16 Load limiting operation.......................................................................................................... 117
16.1 Load limit power threshold.................................................................................................. 117
16.2 Load limit period ................................................................................................................. 117
16.3 Load limit state change....................................................................................................... 117
16.4 Load limit restoration period................................................................................................ 117
17 Tariffs and accounting........................................................................................................... 118
17.1 Tariff structure in credit and prepayment modes................................................................. 118
17.2 Energy accumulation.......................................................................................................... 118
17.2.1 Current and future tariffs ............................................................................................... 118
17.2.2 Tariff types.................................................................................................................... 118
17.2.3 ToU only tariffs.............................................................................................................. 119
17.2.4 ToU with block tariffs..................................................................................................... 119
17.2.5 Permitted value ranges for rates and blocks.................................................................. 120

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17.2.6 Display of pricing ...........................................................................................................120
17.2.7 Additional tariff related data items..................................................................................121
17.3 Switching calendar..............................................................................................................121
17.4 Billing calendar....................................................................................................................121
18 Voltage Quality Measurements..............................................................................................122
18.1 Average RMS Voltage.........................................................................................................122
18.1.1 Average RMS Over Voltage...........................................................................................122
18.1.2 Average RMS Under Voltage.........................................................................................122
18.2 RMS Extreme Over Voltage................................................................................................122
18.3 RMS Extreme Under Voltage..............................................................................................123
18.4 RMS Voltage Sag Detection................................................................................................123
18.5 RMS Voltage Swell Detection..............................................................................................123
19 Service menu..........................................................................................................................124
19.1 Switching on/off the in-service test mode ............................................................................124
19.2 Leaving/joining HAN............................................................................................................125
19.3 Commissioned indicator......................................................................................................125
19.4 Displaying security log entries.............................................................................................126
20 Instantaneous values .............................................................................................................127
21 Profiles....................................................................................................................................128
21.1 Overview.............................................................................................................................128
21.2 Structure .............................................................................................................................128
22 Events and alerts....................................................................................................................129
22.1 Event logs...........................................................................................................................129
22.2 Alerts...................................................................................................................................129
23 Power-up/power-down procedure.........................................................................................130
23.1 Power-down (PD)................................................................................................................130
23.1.1 Bridging time..................................................................................................................130
23.1.2 Power-down procedure..................................................................................................130
23.2 Power-up (PU) ....................................................................................................................131
23.2.1 Hardware Initialisation....................................................................................................131
23.2.2 Power-up procedure......................................................................................................131
23.2.3 Enable communication...................................................................................................131
23.3 Behaviour of outputs at PU/PD............................................................................................132
23.4 Logging of supply interruption .............................................................................................132
24 Sending consumer messages ...............................................................................................133
25 Maintenance and service .......................................................................................................134
25.1 Meter check ........................................................................................................................134
25.2 Meter testing.......................................................................................................................134
26 Measures in the event of faults..............................................................................................135
26.1 Operating faults...................................................................................................................135
26.2 Disconnecting the meter......................................................................................................135
26.3 Triage..................................................................................................................................135
26.4 Repairing the meter.............................................................................................................137
27 Decommissioning and disposal............................................................................................138
28 Terms and abbreviations .......................................................................................................139
28.1 Acronyms............................................................................................................................139
28.2 Units of measurement.........................................................................................................140
29 Index........................................................................................................................................141

8/143 Issue 1.2 About this document
© Landis+Gyr D000058620 en a –E470 Series 3 SMETS2 100 mm –ZCX310 –User Manual and Functional Description
About this document
This User Manual and Functional Description document describes the
functionality provided by the E470 Series 3 SMETS2 Smart Electricity
Meter.
This version of the hardware and firmware provides functionality as speci-
fied in the second version of the UK’s Smart Metering Equipment Technical
Specifications (SMETS2).
This manual contains information required for the application of the meters
for their intended purpose as defined in the section "Intended use and in-
stallation" below. This includes:
Characteristics, construction, and functionality of the meters.
Information about possible dangers, their consequences, and
measures to prevent them.
A detailed description of the tasks to be performed during the entire
life-cycle of the meters (configuration, installation, commissioning,
operation, maintenance, and disposal).
Guidance on the functions provided by the meter.
The contents of this user manual are intended for technically qualified per-
sonnel responsible for system planning, testing, installation and
commissioning, operation, maintenance, decommissioning and disposal of
the meters.
The meters record four quadrant energy consumption in single phase two
wire networks. For this purpose, they are directly installed in the supply line
by the energy supply company and provide readings for energy charging
and other purposes.
The meter is intended for installation by qualified personnel. The meter
conforms to British Standards and is suited to installation in environments
that also align to British Standards. The meter must be installed away from
powerful sources of electromagnetic interference.
There are no user serviceable parts within the meter and the meter must be
returned to the manufacturer or an authorised partner for repair and/or
maintenance. There are no permissible adjustments to meter installation
procedure or meter operation outside those covered by the detailed oper-
ational instructions contained within this document.
If the meter is used in a manner not specified by the manufacturer the pro-
tection provided by the meter may be impaired.
The following document provides further information related to the subject
of this document:
E470 SMETS2 Events and Alerts
A list of terms and abbreviations used in this document is available at the
end of this document.
Scope
Purpose
Target group
Intended use and
installation
Reference documents
Terms and
abbreviations

Safety Issue 1.2 9/143
D000058620 en a –E470 Series 3 SMETS2 100 mm –ZCX310 –User Manual and Functional Description © Landis+Gyr
1 Safety
1.1 Safety information
The following symbols are used to draw your attention to the relevant danger
level, i.e. the severity and probability of any danger, in the individual sections
of this document.
Danger
This symbol is used to indicate a possible dangerous situation which could
result in severe physical injury or death.
Warning
This symbol is used to indicate a possible dangerous situation which could
result in minor physical injury or material damage.

Note
This symbol is used to indicate general details and other useful information.
In addition to the danger level, safety information also describes the type
and source of the danger, its possible consequences, and measures for
avoiding the danger.
1.2 Responsibilities
The owner of the meters –usually the utility company –is responsible for
assuring that all persons engaged in working with meters:
Have read and understood the relevant sections of the user manual.
Are appropriately qualified for the work to be performed.
Strictly observe the safety regulations (laid down in section 1.4) and
the operating instructions as specified in the individual sections.
The owner of the meters bears responsibility for the protection of persons,
prevention of material damage and the training of personnel.
For this purpose, Landis+Gyr provides training on a variety of products and
solutions. Contact your local Landis+Gyr representative for more information.
1.3 Meter Operator Code of Practice
The E470 must be installed in accordance with the Meter Operation Code
of Practice Agreement (MOCOPA®), defining safety, technical and
business interface requirements regarding the provision of meter operation
services.
For more information see https://www.mocopa.org.uk/.

10/143 Issue 1.2 Safety
© Landis+Gyr D000058620 en a –E470 Series 3 SMETS2 100 mm –ZCX310 –User Manual and Functional Description
1.4 Safety regulations
The following safety regulations must be observed at all times:
This meter does not contain a disconnection device. Means for discon-
nection from the supply must be provided as part of the building instal-
lation. Do not work on the equipment unless the supply is disconnected.
If disconnection is done by removal of fuses or other cut-outs, the re-
moved disconnection devices must be kept secure from replacement
while work is performed. If disconnection is provided by a switch, the
switch shall conform to the requirements of IEC 947-1 and IEC 947-3
or equivalent.
This meter does not contain an overcurrent protection device. Over-
current protection must be provided as part of the building installation.
Maximum overcurrent device rating is 100 A at 415 V, conforming to
the requirements of BS1361 or equivalent.
This meter has a maximum current rating of 100 A and a single fault
overload rating of 145 A. The meter terminals accept cables up to 35
mm2. Use with smaller diameter cables without corresponding derating
of the mains fuse may degrade the meter.
Local safety regulations must be observed and shall take precedence
over these regulations in the event of a conflict. Only technically quali-
fied and appropriately trained personnel are authorised to install the
meters.
Only appropriate tools shall be used for the job. This means, e.g. that
the screwdriver must be of the correct size for the screws, and the
handle of the screwdriver must be insulated.
The meters must be held securely during installation. They can cause
injuries if dropped.
Meters that have been dropped must not be installed, even if no
damage is apparent, but must be returned to the service and repair
department (or the manufacturer) for testing. Internal damage may
result in malfunctions or short-circuits.
The meters must not be cleaned under running water or with
compressed air. Water ingress can cause short-circuits.
The meter terminal cover should be secured in place before any load
is supplied.
Risks of not covering the intimate communications hub interface
If the meter is supplied without a manufacturer supplied intimate
communications hub interface (ICHI) cover, there are potential safety risks
of installing the product and not fitting a cover, including accidental contact
with an energy source. Such a product should not be installed without an
appropriate cover fitted over the ICHI connector (being a separately
supplied ICHI cover or a communications hub) and the manufacturer shall
not be liable for any consequences associated with the failure to fit such a
cover.

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2 Compliance to SMETS2
The E470 meter satisfies the following sections of the Smart Metering
Equipment Technical Specifications (SMETS2):
Section 5: "Electricity Smart Metering Equipment Technical
Specifications
–Part A –Single Element Electricity Metering Equipment
–Part D –Auxiliary Load Control Switch
–Part E –Boost function
The E470 meter also satisfies the Great Britain Companion Specification
(GBCS) as specified in SMETS2.
The E470 meter meets the Commercial Product Assurance (CPA)
compliance requirements.

12/143 Issue 1.2 Functional overview
© Landis+Gyr D000058620 en a –E470 Series 3 SMETS2 100 mm –ZCX310 –User Manual and Functional Description
3 Functional overview
3.1 Main characteristics
The meter requires a single phase, two wire mains supply with a reference
voltage of 230 V, 50 Hz. The meter is rated at reference currents of 5, 10 or
20 –(100) A registering kWh to class B (MID).
The meter is fitted with a single pole 100 A supply control switch for the
disconnection of supply. The supply control switch, which conforms to IEC
62052-31 UC3, can operate automatically, for example when prepay credit
has expired, through load limiting or by remote command.
The meter is fitted with an internal relay which is controlled by time-of-use
switches and may be used to control an auxiliary load control switch
(ALCS)
The meter features multiple import rate energy registers and one total export
energy register. The meter may be configured with time-of-use tariffs (up to
48 rates), individual block tariffs (up to 4 blocks) or combinations of the two
(up to 8 time-of-use rates each with up to 4 blocks).
The core features of the meter include but are not limited to:
Metrology
Time-of-use and block tariffs
Logging of data in profiles, event logs, etc.
Credit or prepayment modes of operation
Load limiting operation
Remote firmware update
Remote or meter controlled disconnect/reconnect (reconnect requires
customer action)
Support for auxiliary load control switches (ALCS) including home area
network (HAN) connected auxiliary load control switches (HCALCS)
Voltage quality measurements

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3.2 Technical details
Accuracy class
Class 1 (IEC), Class B (MID) for active energy
Class 2 (IEC) for reactive energy
Standards and requirements
Active energy: MID, EN 50470-1, EN 50470-3,
EN 62052-11, BS7856:2013
Reactive energy: IEC 62053-23
Safety: EN 61010-1, BS EN 60950-1,
IEC 62052-31, BS EN 50470-1 class II
EMC: EN 301 489-1, EN 301 489-17
Voltage
Un = 220, 230, 240 VAC
Specified operating range: ±10% of Un
Extended operating range: -20%, +15% of Un
Long-term overvoltage: 1.9 x Un
Power consumption
Typical 0.9 W @ 230VAC (excludes ICHI power
consumption)
Case
Protection class II
IP53
Antistatic polycarbonate glass filled 10%
Dimensions
Overall: 121 mm (h) x 130 mm (w) x 68 mm (d)
Height: 98 mm, not including Intimate
Communications Hub Interface (ICHI)
Weight: 1 kg (approx.)
Supported interfaces
ZigBee® HAN utilising SEP 1.2 at 2.4 GHz
GBCS tunnelled over the HAN to/from communi-
cations hub
DCC compliant Intimate Communications Hub
Interface (ICHI) providing 12 VDC / 6 W power,
Comms Hub Present and Meter Present pins.
Control buttons
One button for scrolling display
Second button for the control of the Disconnector
(used for reconnection of supply) and also
available as a control of display operations.
LCD display
16 starburst (14 segment) characters
7 digits for showing register values
In Service Test (IST) mode shows 2 dp
Indication of units, currency, signal strength,
energy direction and supply status
LED
Pulsing red LED indicating measured energy
Continuous illumination indicating anti-creep
Clock
Quartz crystal synchronized real time clock
Maximum deviation 6ppm
Battery back-up
Measurement
Four quadrant measurement
1 phase 2 wire single phase
Current
Reference current Iref = 5 A, 10 A, 20 A
Maximum current Imax = 100 A
Minimum current Imin = 0.25 A, 0.5 A, 1.0 A
Starting current Ist = 0.4% of Iref ≤20 mA,
0.04 mA, 0.08 mA
Tamper detection
Main cover and terminal cover removal
Strong DC magnet
Sealing for main cover and terminal cover
ZigBee® module
2.4 GHz IEEE 802.15.4 transceiver
32-bit microprocessor
192 KB Flash Memory/12 KB RAM
Relay outputs
Single pole voltage free, non-latching relay rated
at 230 V 2 A at unity and 0.5 pf.
Supply control switch
For disconnection of energy supply
Can be controlled remotely or locally for
prepayment and load limiting functions in
conjunction with the push button.
Max. switching current 100 A
Conforms to EN 62052-21 UC3
Temperature and humidity
Operating temperature: -25 °C to +55 °C
Storage temperature: -40 °C to +70 °C
LCD operating temperature: -20 °C to +55 °C
Relative humidity 30% to 95%, non-condensing
Insulation strength
Insulation voltage: 4 kV at 50 Hz for 1 min
Impulse voltage 1.2/50 s:
6 kV according to IEC62052-11
Frequency
50 Hz ± 0.5 %
Security
Random Number Generator (RNG)
AES-128
Internal firewall for secure separation/access
Table 1 Technical details

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3.3 Type designation
The exact hardware configuration of the E470 meter is expressed in a type
designation code. The type designation is used for ordering purposes and
can be read by the metering system.
Type designation: ZCX S 3 10 HU0 L2 D1. 4 1 S3
Type of meter
ZCX
1-phase 2-wire network (C-circuit, single phase)
Build option
S
SMETS
Connection type
3
Direct connection 100 A
Accuracy class
10
Combined meter active energy class 1 (IEC); B (MID),
reactive energy class 2 (IEC); A (MID
System interface
H
Intimate hub (SMETS2 firmware)
User interface
U0
U1
No optical interface
Optical interface
Local interface
L0
L2
No local interface
ZigBee
Supply control switch
D1
1-pole supply control switch (live only)
Relay outputs
4
2 A / 230 VAC non-latching potential free
Other options
1
Terminal cover and main cover removal detection
Meter variant
S2
S3
SMETS1/2 Series 2 (120mm) hardware
SMETS2 Series 3 (100mm) hardware
Table 2 Type designation

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3.4 Metrological functions
An independent measurement chip and current shunt integrated into the
live phase supply control switch assembly comprise the energy measure-
ment system.
Energy values measured by the measurement chip are acquired once per
second. Received energy values are added to the corresponding register.
The meter is capable of 4 quadrant measurement. The following energy
quantities will be measured and recorded:
Active import and export energy (+A, Wh), (-A, Wh)
Summation of active import and export energy ([+A] + [-A], Wh)
Net of active Import and export energy ([+A] –[-A], Wh)
Reactive energy import and export (+R, varh), (-R, varh)
Reactive energy per quadrant:
–Reactive inductive import and export energy
(+Ri (QI), and -Ri (QIII), varh)
–Reactive capacitive import and export energy
(-Rc (QII) and -Rc (QIV), varh)
Apparent energy import and export (+VA, -VA)
The meter monitors the following instantaneous values:
Phase voltage U (V)
Phase current I (A)
Network frequency fn (Hz)
Active power P (W)
Reactive power Q (VAr)
Apparent power S (VA)
3.5 Clock information
The E470 contains an internal clock which can be used for various
functions within the meter including:
time indication on the meter display ;
to control the time-of-use rate and (HC)ALCS switching;
for the timestamps in profiles, registers and event logs;
for the implementation of future-dated commands.
In SMETS2 installations the master time reference is taken from the
communications hub at the time the meter is commissioned and time
synchronisation with the communications hub is then performed on power-
up and every 24 hours.

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3.5.1 Accuracy
The calendar clock uses an internal crystal as time base.
The crystal features a maximum deviation of 0.5 s per day (<6 ppm) i.e.
maximum deviation of the calendar clock is 15 seconds after 30 days.
The clock maintains its accuracy in accordance with the requirements of
SMETS2 and GBCS. The calendar clock can only be set with the GBCS
command ECS70 "Set Clock on ESME" and will automatically synchronise
with the communications hub every 24 hours and on power-up. The setting
of the time is recorded in the standard event log.
The approach is as follows:
The energy supplier sends a Set Clock command with the supplier’s
current time and a future time (reflecting a time tolerance) in the
command; and
if, when the meter receives the command, the communications
hub’s time is within tolerance of the energy supplier’s time, the
meter aligns itself to the communications hub’s time and treats its
time as reliable. Otherwise the meter treats its time as unreliable.
Note that mains frequency synchronisation is not employed in the E470.
3.5.2 Date and time
Time and date within the meter is based on normal time (UTC in the UK).
When communicating with the meter the date and time is shown (set) as
normal time. Time and date is always shown as local time on the display
(incorporating DST time shift).
The following formats are supported:
day [dd], month [mm], year [yy] on LCD, e.g. 10.01.07
hour [hh], minute [mm], second [ss] e.g. 12:30:55
Only 24-h format is supported for time. Midnight is shown as 00:00. Other
time information such as day of week is not supported.
3.5.3 Validity
The calendar clock is designed to generate valid calendar data (including
leap years) between 1.1.2000 and 31.12.2059.
3.5.4 Daylight saving time
Daylight savings time settings are only used by the meter for display of
local time on the meter display. Changeover to daylight saving time (DST)
and back to normal time is performed automatically per the DST settings
configured in the meter. Start and end of daylight saving time can be set
per the European standard or the user can define their own specification.
By selecting the EU standard, the meter will be set to start the daylight-
saving time on Sunday the 25th of March or on the first Sunday after the
25th of March. On that day, the local time is advanced from 01:00h to
02:00h.
Daylight saving time ends on Sunday the 25th of October or on the first
Sunday after the 25th of October. On that day, the local time is set back
from 02:00h to 01:00h.
When configuring a specific daylight saving time the DST parameters must
be set from the following:

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Start of Daylight
Saving Time
Enter the month, the weekday and the earliest possible day on which the
daylight saving time must be activated.
Also enter the switching time (usually 01:00h) and the time shift (usually +1h).
End of Daylight
Saving Time
Enter the month, the weekday and the earliest possible day on which the
daylight saving time must be deactivated.
Also enter the switching time (usually 02:00h). The time shift is the same as
defined for activating the daylight saving but in the opposite direction.
Table 3 DST parameters
3.5.5 Deviation to GMT
The deviation of normal time to GMT for other time zones can be set in 30
minute increments in range from -720 min to 720 min. Setting the deviation
does not affect the internal device clock. The deviation is simply
added to the device clock to form the normal time for the relevant
time zone.
If the time and date is adjusted the deviation value will remain
unchanged.
3.6 Battery backup
A leak-resistant battery provides back-up power for the calendar clock. The
battery is rated to provide sufficient capacity for the life of the meter without
the need for replacement.
Battery life is dependent on the following main factors:
Normal Current drain from the clock circuit
Loss of capacity due to internal resistance of cell
Loss due to temperature
Effective loss due to lowest working voltage of clock circuit
The battery installed in the SMETS2 E470 has a capacity of 540mAh.
When using the above factors, and assuming an extended lifetime of 20
years, the remaining battery capacity is calculated to be around 40% at the
end of this period. The battery shall therefore not require changing in its
operating lifetime.
3.7 Operational modes
The E470 meter can be operated in the following operational modes:
Credit mode
Prepayment mode
3.7.1 Credit mode
In credit mode, the meter can:
Receive commissioning messages
Send and receive data via the communications hub
Record electricity consumption and accounting.
This mode supports full credit functionality as described in SMETS2/GBCS.
In credit mode, the default display that is normally shown on the display is
the total meter index in kWh for active import:

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R a t e X X A c t I m p
00000
import
kWh
The meter is either configured to be in this mode as a factory default or it is
commanded to enter this mode by a GBCS message.
For more detailed information, see section 14 “Credit mode”.
3.7.2 Prepayment mode
In prepayment mode, the meter can:
Receive any remaining commissioning messages
Support the prepayment functionality described in SMETS2/GBCS
including:
–Receipt of local and remote credit top ups
–Debt management (time based and vend based debt collection and
emergency credit)
In prepayment mode, the default display will be the total meter index, as in
credit mode. Prepayment displays or PIN entry to view displays will be
initiated after the first button process.
The meter is either configured to be in this mode as a factory default or it is
commanded to enter this mode by a GBCS message. Note the standard
factory default configuration is for the meter to be set to Credit Mode when
it leaves the factory.
For more detailed information, see section 15 “Prepayment mode”.
3.8 Load limiting
Load limit parameters can be set on the meter in either credit or
prepayment mode. These allow the meter to control the supply to the
consumer.
Where the instantaneous usage exceeds the load limiting threshold for a
defined period of time it is registered as a load limiting event.
As defined in SMETS2 the meter provides indication of a load limiting
event, raises alerts and can be configured to disconnect supply as well as
subsequently restoring supply after a configurable restoration period.
For more detailed information, see section 16.

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3.9 Customer privacy PIN
When operating in credit or prepayment mode, the meter allows for the
protection of personal data items that may otherwise appear on the display.
The customer privacy PIN may be enabled, changed or disabled by the
user. For details see section 12.
3.10 Non-Disablement calendar
When operating in prepayment mode, the supplier may configure a
calendar on the meter which defines non-disablement periods of time when
the meter will not disconnect the customer premises due to lack of credit
even if all available credit expires during that non-disablement period. For
details see section 10.
3.11 Rolling register displays
The rolling registers are used to provide the customers with a selection of
data that is not available on the default display cycle. These registers are
accessed by pressing and holding button A (≥2 s) whilst viewing the credit
or prepayment status display. The first register is then displayed.
Pressing button A again advances the display to the next register etc. until
the end of the list is reached.
After a timeout period of 30 seconds with no button presses the display
reverts to the default display. Some registers can only be viewed in certain
modes of operation.
If a customer privacy PIN is enabled then displays in the rolling register
sequence that are considered personal data will not be shown (they will be
skipped), unless the correct customer privacy PIN value has been entered
at the beginning of the session.
3.12 Boost function
The E470 meter supports a boost function where if enabled can be
managed via the meter display. The boost function allows management of
the ALCS for additional time periods outside of the ALCS calendar settings.
The activate boost function will cause the ALCS configured as under
control of the boost function to close for 15,30,45 or 60 minutes, and then
revert to normal operation in accordance with the ALCS calendar.
The meter supports the cancelling of a boost period where the ALCS will
revert to normal operation in accordance with the ALCS calendar.
The meter also supports the extending an existing boost period where the
ALCS will remain closed for up to a maximum of 60 minutes for any single
active boost period.
3.13 Remote commands
The E470 meter supports remote communication over a ZigBee SEP
interface. This allows the meter to be controlled and monitored per the
protocols defined in the Great Britain Companion Specification (GBCS) in
accordance with SMETS2 operation.

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3.14 Environmental performance
3.14.1 General environment
The meter is intended for indoor applications.
The meter is intended to be installed in a mechanical environment "M1",
with shock and vibrations of low significance, as per 2004/22/EC Directive.
The meter is intended to be installed in electromagnetic environment "E2",
as per 2004/22/EC Directive.
3.14.2 Temperature and humidity
The operating temperature range: -25 oC to +55 oC
The storage temperature range: -40 °C to +70 °C.
LCD operating temperature range: -20 °C to +55 °C
Relative air humidity range: 30 % to 95 %, non-condensing.
3.14.3 Mechanical strength of meter case
The meter has been designed to pass spring hammer testing in accordance
with BS EN 50470-1:2006 clause 5.2.2.1 under the following conditions:
Meter mounted in its normal working position
Spring hammer acting on the outer surfaces of the meter case and on
the terminal cover with a kinetic energy of 0.2 J ± 0.2 J.
The meter has been designed to pass shock testing in accordance with BS
EN 50470-1:2006 clause 5.2.2.2 under the following conditions:
Meter in non-operating condition, without the packing
Half-sine pulse
Peak acceleration: 30 gn (300 m/s²)
Duration of pulse: 18 ms
The meter has been designed to pass vibration tests in accordance with BS
EN 50470-1:2006 clause 5.2.2.3 under the following conditions:
Meter in non-operating condition, without the packing
Frequency range: 10 Hz to 150 Hz
Transition frequency: 60 Hz
f <60 Hz, constant amplitude of movement 0.075 mm
f >60 Hz, constant acceleration, 1 gn (10 m/s²)
Single point control
Number of sweep cycles per axis: 10