Landis+Gyr E350 Series User manual

Electricity Meters IEC/MID
Residential
ZxF100Ax/Cx
E350 Series 2, 3-Phase
User Manual
Date: 23.08.2016
File name: D000027979 E350 Series 2 ZxF100Ax Cx 3-ph User Manual en t.docx
© Landis+Gyr D000027979 en t

2/56 Revision History
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
Revision History
Version Date Comments
a 24.07.2009 First edition.
b 18.01.2010 Example absolute value summation corrected, channel configuration table updated
with OBIS codes and remarks, instantaneous power accuracy added, new section
2.4 "Radio Interference", description of power-up display corrected, range of CDS
and NDS display durations corrected, description of error display changed, meter
display list updated (without display text), description of optical interface enhanced,
description of manufacturer specific mode C-C added, description of optical test
outputs enhanced, minor formatting and text improvements.
c 05.05.2010 New display list items, Combined sum integrated in channel configuration (section
1.6); Summation modes updated, FW version presentation updated, supply control
switch tamper added, More detailed explanation of supply control switch icon, table
of required measuring times updated, display status messages added, error code
and status flag explanations extended, addressability added, advice (restriction) for
FW version <= M23 added, availability for supply control switch added.
d 24.08.2010 "Meter display list" corrected (voltage, current, frequency, power items);
Explanation efficiency registers updated; Table Instantaneous Values updated;
Display status messages updated; Meter tools added.
e, f 06.09.2010 Minor formatting and text improvements.
g 16.10.2010 Updating 1.8. Instantaneous values.
h 09.12.2010 Section 5.2.5 Display sequence entirely updated (main and service display).
Declaration of conformity replaced.
k 17.03.2011 Note about restrictions for meters with firmware versions M21 to M23 added in
section 1.2 "Purpose of use". Section 1.3 "Advice" deleted (integrated into note in
section 1.2).
m 01.06.2011 Section 1.4 "Characteristic" expanded with remark about ZFF100 meters phase fail
behaviour; Section 2.3 "Safety Instructions" expanded with remark, that PE must
not be switched with supply control switch and only "useful" tool have to be used;
Section 5.2.7 "Error Display" modified; Remark about module data added in section
5.2.9; Content of section 5.2.12 "Error descriptions E350 Series 1 and Series 2"
moved partly into functional description and partly to section 6.2 "Error Codes":
Safety information about cleaning added in section 6.1 and modified in section 7.2.;
Terminology changes: breaker disconnector, baud rate transmission rate,
baud bps (bits per second); Minor formatting and text improvements.
n 20.12.2011 Section 1.6.3: Adapted to firmware version M25 (8 measurement channels)
Section 5.2.9: New display item: Supply control switch tamper counter.
p 24.10.2012 Adapted to firmware version M26 (DSMR 4.0):
“Introduction” updated.
Section 5.2.2 “Explanation of LCD Elements” updated.
Section 5.2.4 “Display Definitions” updated.
Section 5.2.5 “Display Sequence” entering and exiting “Service Display” updated.
Section 5.2.6 “Display Check” updated.
Section 5.2.9 “Meter Display List – Available Items with OBIS Codes” updated.
Section 5.4 “Optical Interface” updated (added blocking).
Section 5.5.5 “Readout Status Flag (C.5.0)” updated.
New section 5.5.4 “Display Status Flag (C.5.0)” added.
New section 5.6 “Password Lock-out” added.
Section 7.1.1 “Higher Register Resolution” updated.
q 20.12.2012 Section 7.1.2: Note about test time for register test for meters with firmware version
M25.
Section 1.2: Note about restriction for meters with firmware version M25.
r 31.01.2016 Added “For indoor use only” notification in section 4.1 “Mounting the Meter”.

Revision History 3/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
s 05.07.2016 Moved section 1 “Safety” to the beginning of the document.
Updates section 2.7 “Instantaneous Values”.
Updated section 5.2.9 “Meter Display List – Available Items with OBIS Codes”.
Moved sections 5.5.3 “Readout Status Code (C.5.0)” and 5.5.4 “Display Status
Code (C.5.0)” to the Functional Description.
Updated terminology (e.g. software changed to firmware; disconnector changed to
supply control switch).
t 23.08.2106 Updated section 2.6.3 “Signal Processing”.
A
lthough 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 errors, 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.
A
ll product information are subject to change without notice.

4/56 Table of Contents
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
Table of Contents
Revision History..................................................................................................................................... 2
Table of Contents .................................................................................................................................. 4
Introduction............................................................................................................................................ 6
1Safety .............................................................................................................................................7
1.1 Safety Information .....................................................................................................................7
1.2 Responsibilities..........................................................................................................................7
1.3 Safety Instructions .....................................................................................................................8
1.4 Radio Interference .....................................................................................................................8
2Description of Unit ........................................................................................................................9
2.1 General View .............................................................................................................................9
2.2 Purpose of Use..........................................................................................................................9
2.3 Field of Application ..................................................................................................................10
2.4 Characteristics.........................................................................................................................11
2.5 Type Designation.....................................................................................................................12
2.6 Measuring Principle .................................................................................................................13
2.6.1 Overview ............................................................................................................................13
2.6.2 Signal Generation ..............................................................................................................13
2.6.3 Signal Processing ..............................................................................................................14
2.7 Instantaneous Values ..............................................................................................................18
2.8 Anti-Tampering and Tamper Prevention .................................................................................19
2.9 Supply Control Switch .............................................................................................................20
2.10 Software Tools.........................................................................................................................20
3Mechanical Description ..............................................................................................................21
3.1 Housing ...................................................................................................................................21
3.2 Faceplate.................................................................................................................................22
3.3 Connection Diagrams (examples) ...........................................................................................22
3.4 Dimensions..............................................................................................................................23
4Installation/Uninstallation ..........................................................................................................25
4.1 Mounting the Meter..................................................................................................................25
4.2 Connecting the Meter ..............................................................................................................26
4.3 Checking the Connections.......................................................................................................27
4.4 Commissioning and Functional Check ....................................................................................28
4.5 Disconnecting the Meter..........................................................................................................28
5Operation .....................................................................................................................................29
5.1 Control Elements .....................................................................................................................29
5.1.1 Display Button....................................................................................................................
29
5.1.2 Supply Control Switch Button.............................................................................................29
5.2 Liquid Crystal Display (LCD) ...................................................................................................30
5.2.1 Basic Layout ......................................................................................................................30
5.2.2 Explanation of LCD Elements ............................................................................................30
5.2.3 Displaying OBIS Codes......................................................................................................33
5.2.4 Display Definitions..............................................................................................................34
5.2.5 Display Sequence ..............................................................................................................35
5.2.6 Display Check ....................................................................................................................38
5.2.7 Error Display ......................................................................................................................38
5.2.8 Text Messages on Display.................................................................................................39
5.2.9 Meter Display List – Available Items with OBIS Codes......................................................40
5.2.10 Display Status Messages...................................................................................................42

Table of Contents 5/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
5.2.11 Energy Efficiency Items in the Meter Display .................................................................... 43
5.3 Pulse Output LEDs ................................................................................................................. 43
5.4 Optical Interface...................................................................................................................... 44
5.5 Data Readout.......................................................................................................................... 44
5.5.1 IEC 62056-21 Mode C....................................................................................................... 45
5.5.2 Readout Configuration ...................................................................................................... 45
5.5.3 Data Readout Procedure via Optical Interface or Communication Module ....................... 46
5.5.4 Addressability of Meter...................................................................................................... 47
5.6 Password Lock-out ................................................................................................................. 47
6Service......................................................................................................................................... 48
6.1 Operating Faults ..................................................................................................................... 48
6.2 Error Codes............................................................................................................................. 48
6.2.1 Structure of an Error Code ................................................................................................ 48
6.2.2 Error Code Descriptions .................................................................................................... 49
6.3 Repairing Meters..................................................................................................................... 50
7Maintenance................................................................................................................................ 51
7.1 Meter Testing .......................................................................................................................... 51
7.1.1 Higher Register Resolution ............................................................................................... 51
7.1.2 Measuring Times............................................................................................................... 52
7.1.3 Pulse Output LEDs............................................................................................................ 52
7.1.4 Connection to a Meter Testing Device .............................................................................. 53
7.1.5 No-Load Test..................................................................................................................... 54
7.1.6 Starting Test ...................................................................................................................... 54
7.2 Cleaning.................................................................................................................................. 54
8Decommissioning and Disposal ............................................................................................... 55
8.1 Decommissioning.................................................................................................................... 55
8.2 Disposal .................................................................................................................................. 55

6/56 Safety
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
Introduction
The present manual applies to the following E350 Series 2 meter versions:
Three-phase four-wire network
ZMF100AC and ZMF100AB for active energy (import and export)
ZMF100CC and ZMF100CB for active and reactive energy (import and
export)
Three-phase three-wire network
ZFF100AC and ZFF100AB for active energy (import and export)
ZFF100CC and ZFF100CB for active and reactive energy (import and
export).
For a detailed explanation of the type designation, see section 2.5.
Some features of the meter are only available in specific firmware versions.
The firmware version can be seen during the start-up of the meter, or, if
configured accordingly, on the display or by readout. In customer
documentation, these items are marked with the numbers of the respective
FW versions as a superscript note, e.g. for the number of channels:
“10 (or 8 [M24…M28] or [M21…M23])”.
The user manual contains all information required for meter applications for
the intended purpose. This includes:
Provision of knowledge concerning characteristics, construction and
knowledge of meters
Information regarding possible dangers, their consequences and
measures to prevent any danger
Details concerning the performance of all work throughout the service
life of the meters (parameterisation, installation, commissioning,
operation, maintenance, decommissioning and disposal)
The content of this user manual is intended for technically qualified
personnel of energy supply companies, responsible for system planning,
installation and commissioning, operation, maintenance, decommissioning
and disposal of meters.
The technical data and functional description of the meters can be found in
separate documents:
D000027981 "E350 Series 2 ZxF100Ax/Cx 3-phase Technical Data"
D000028645 "E350 Series 2 ZxF100Ax/Cx 3-phase Functional
Description"
Range of validity
Purpose
Target group
Reference documents

Safety 7/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
1 Safety
This section describes the safety information used in this manual, outlines
the responsibilities and lists the safety instructions to be observed.
1.1 Safety Information
Attention is drawn to dangers and their level (severity and probability) in
this user manual in the following way:
Warning
Used to indicate a dangerous situation that could cause bodily injury or
death.
Caution
Used to indicate a situation/ action that could result in material damage or
loss of data.
Note
Used to indicate general guidelines and other useful information.
All safety information also describes the type and source of the danger, its
possible consequences and measures to counteract the danger.
1.2 Responsibilities
The owner of the meters is responsible that all persons engaged on work
with meters:
1. Are competent and qualified in accordance with national regulations
(see ISSA "Guideline for Assessing the Competence of Electrically
Skilled Persons").
2. Have read and understood the relevant sections of the user manual.
3. Strictly observe the safety instructions (according to section 1.3) and
the operating information in the individual sections.
In particular, the owner of the meters bears responsibility
for the protection of persons,
prevention of material damage
and the training of personnel.
Landis+Gyr AG provides training courses for this purpose on specific
equipment; please contact the relevant agent, if interested.

8/56 Safety
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
1.3 Safety Instructions
The following safety instructions must be observed at all times:
The meter connections must not be under voltage during installation or
when opening. Contact with live parts is dangerous to life. The relevant
main fuses should therefore be removed and kept in a safe place until
the work is completed, so that other persons cannot replace them
unnoticed.
Local safety regulations must be observed.
Protection earth connection must not be switched with the supply
control switch.
Only appropriate tools may be used. This means a screw driver has to
have the correct size for the screws and the metallic part of a screw
driver has to be insulated.
The meters must be held securely during installation. They can cause
injuries if dropped.
Meters which have fallen, must not be installed, even if no damage is
apparent, but must be returned for testing to the service and repair
department responsible (or the manufacturer). Internal damage can
result in functional disorders or short-circuits.
The meters must on no account be cleaned with running water or with
compressed air devices. Water penetrating can cause short-circuits.
1.4 Radio Interference

Possible radio interference in residential environments
This meter is normally a class B product. In combination with some
communication modules, it can become a Class A product. In a domestic
environment, this may then cause radio interference, in which case the user
may be required to take adequate measures.

Description of Unit 9/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
2 Description of Unit
2.1 General View
Fig. 1.1 General view of meter (with GSM/GPRS Module)
2.2 Purpose of Use

Restrictions for meters with firmware versions M21 to M23:
The meters may not be used in networks with significant disturbances in
the frequency range of 2 kHz to 150 kHz since the intended operating
conditions of the meters according to the harmonised standards EN50470-
1 and EN50470-3 assume no significant noise currents and voltages in this
frequency range.
Such significant disturbances occur for instance in large photovoltaic
systems (influence of the inverters with high emissions of extreme
harmonics) and can cause additional errors in the meters, even though the
meters meet all applicable standards and regulations.

Restrictions for meters with firmware versions M25:
Please follow the required test times for the meter constant or dial test,
mentioned in section 7.1.2. At switching on or off the load (between <0.5A
and >1A) regularly every 20 minutes, an additional error of about 0.1% can
occur. The deviation can be higher, if the load is switched more often. The
meter complies with all specifications. It fulfils all the valid standards and
regulations.
E350 Series 2 ZMF100 meters record active and reactive energy
consumption in all 3-phase 4-wire networks. They are directly installed in
the supply line by the energy supply company and are read regularly for
billing purposes.
ZFF100 meters differ from ZMF meters in the type of measurement (Aron
circuit for three-phase three-wire networks). Therefore, they are only
equipped with 2 instead of 3 measuring elements.

10/56 Description of Unit
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
The data is displayed on an LCD and is also available via optical interface
and with a communication module via CS, PLC modem, GSM/GPRS
modem or Ethernet. When provided with transmission contacts, the meters
can also be used as transmission contact meters for telemetering. The
rates can be controlled externally with control inputs (on the communication
module).
With a communication module, the meters can also be used to record
counting pulses of other physical media (e. g. water or gas volumes) or to
directly transmit values recorded by other measuring devices.
Any other application of these meters is regarded as abuse.
2.3 Field of Application
The basic version provides energy registers for tariffication, red pulse
output LEDs for active and reactive energy, an optical interface for meter
reading and an interface for various communication forms. This interface is
protected against fraud and is independent of the module suppliers. The
exchangeable communication module is situated outside the calibration
liability. The functionality of this meter is suitable for smaller consumers,
e.g. for households.
The function of the supply control switch is customer specific and is defined
by the communication module. Possible uses: anti-tampering (e.g.
disconnection in case of tampering with magnets), load limitation (fuse
control), remote disconnect (e.g. in case of change of tenant), prepayment.
The status of the supply control switch is displayed on the meter, but the
supply control switch is controlled by the communication module. If you
need detailed information on the functionality of your supply control switch,
please consult the user manual of the communication module installed.
The basic series can be extended with various communication modules for
additional functions and communications:
Multi-rate import/export with external rate control
S0 pulse output
Communication via PLC, GSM/GPRS, or other media.
The meter functions which can be used in the system are defined by the
module (e.g. a 2 rate module is not able to control 6 rates in the meter).
Therefore, meter and module together define the functionality range which
can be used.
As the meter has a wide range of configuration possibilities, a specific
behaviour can in some cases differ from the description below.
The meters can be parameterised, i.e. specific parameters can be set with
software, so that the meters can be supplied according to the specific
wishes of the relevant utility.
Retroactive modification of the parameters is not possible.
The parameters stored in the meter are protected against unauthorised
overwriting.
Details about parameter settings can be found in the functional description.
Basic series
Supply control switch
(ZxF100xB only)
Extensions
Parameterisation

Description of Unit 11/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
2.4 Characteristics
The meters have the following characteristics:
Recording of active and reactive energy in all 4 quadrants (ZMF100Cx)
or recording of active energy imported and exported (ZxF100Ax) with
up to 6 rates
Rate control performed via communication module
Data display on LCD
Measuring elements in DFS (Direct Field Sensor) technology with
excellent measuring characteristics, including flat load curve, high
stability and good protection against interference.
Active energy measurement accuracy: Classes 1 and 2 (IEC62053-21)
and MID accuracy classes A and B (EN50470-3)
Reactive energy measurement accuracy: Class 2 (IEC62053-23)
Correct measurement even with only one or two phases (for ZFF100
meters the correct measurement is only granted with missing phases
L1 or L3, since L2 is the internal reference point, which must always be
present)
Wide range measurement from starting current to maximum current
Serial interface with optical input/output for automatic readout of data
on the spot and for service functions
AMR interface (connection to communication module) for meter
reading and tariff control according to IEC 62056-21
Storage of event information (e.g. power outages)
Installation aids (e.g. phase voltages and direction of energy)
-Presence of phase voltages (voltage values are displayed)
-Visual output (no-load indicator) on LCD
-Display of energy direction
-Power indication

12/56 Description of Unit
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
2.5 Type Designation
3-phase 3-wire network
Network Type
Connection Type
ZM
F
1
Additional Functionality
C
A
ZFF
Meter with communication interface
Direct connection1
3-phase 4-wire network
Accuracy Class active energy
20
Class 1 (IEC); B (MID)
10
10
ZMF
Class 2 (IEC); A (MID)
BMeter with communication interface and supply control switch
e
Rates
1 rate
2 rates
e
d
Multi-rate (up to 6 rates)t
F
Measured Quantities
Active energy
Active and reactive energy
A
C
Anti-tampering
- No tamper detection
F Tamper detection
Version
s2 Series 2
s2B
The "e" for the 1-rate version can be skipped in some versions.
The communication module is not part of this type designation, since it is a
complete unit in itself. Users can change it without opening the calibration
seal.

Description of Unit 13/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
2.6 Measuring Principle
2.6.1 Overview
The main meter inputs are:
Phase connection (L1, L2, L3) and neutral for
-energy measurement
-three-phase power supply of the meter
-PLC communication with communication modules (all phases
prepared)
Display button
Supply control switch button (only if meter equipped with supply control
switch)
The main meter outputs (partly also inputs) are:
LCD to display measured values and the corresponding OBIS code
Pulse output LEDs (red, one for active and one for reactive energy)
Optical interface for automatic data readout on site by means of a
suitable PDA (also input)
Secured AMR Interface for automatic data readout through a
communication module, e.g. E35C module, with a PLC, GSM/GPRS,
Ethernet or other medium (also input).
The supply voltage for the meter electronics is taken from the three-phase
system. A voltage monitor guarantees a safety data storage in the event of
a mains voltage failure and a correct start-up after the return of the voltage.
A non-volatile memory (EEPROM) contains the parameter set of the meter
and secures the stored measurements against loss due to power failure.
2.6.2 Signal Generation
The three measuring elements, DFS (Direct Field Sensor), register the
phase currents with the magnetic field of the current loops and the phase
voltages over a resistor divider. The analog/digital converters transform
both signals into digital voltage and current data. This data is then
multiplied by a digital multiplier to produce an energy proportional value.
The resulting value is fed into the microprocessor, which adds the value to
the corresponding values of the other phases and the sum is then
transferred into the corresponding energy registers (rate-dependent).
The microprocessor generates pulses for the pulse output LEDs from the
digital sum to the meter constant R.
Inputs
Outputs
Power supply
Memory

14/56 Description of Unit
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
2.6.3 Signal Processing
The meter records active and reactive energy and can distinguish between
energy import and export in up to 6 rates (depending on configuration).
Calibration data is stored during the final testing of the meter.
The microprocessor compares the measured power with the minimum
starting power. The signals are only passed on for summation if the
minimum starting power is exceeded.
The following energy values can be measured and stored in the registers:
Active energy A
Reactive energy R
Apparent energy S
The signals +A and +R are formed by summation for imported measured
active and reactive energy. The signals –A and –R are formed by
summation for exported measured active and reactive energy. The
combined totals are the sum of the absolute values of +A and –A or +R and
–R.
Energy type: kWh, kvarh or kvah
Direction: Import, export, ± reactive
Source: Individual phase, summed, etc.
Instantaneous Values: Voltage, current, frequency, power factor, etc.
There are 10 (or 8 [M24…M28] or 6 [M21…M23]) independent measurement
channels. One of the measured quantities can be assigned to each of this
register.
In firmware version M29, the measurement channels 1 to 6 have 6 rated
registers and 1 total each, channels 7 and 8 have 4 rated registers and 1
total each, channels 9 and 10 have only 1 total register. 54 registers are
therefore available in total.
In firmware version M27, the measurement channels 1 to 8 have 4 rated
registers and 1 total each, channel 9 and 10 have only 1 total register.
34 registers are therefore available in total.
All registers work internally with 9 digits. The internal magnitude is Wh
(Watt-Hours). They cannot be reset. At 999999999, a rollover to 0 takes
place. The display and readout formats vary from the internal format.
The meter is designed for up to 6 rates. The assignment of the rate
registers is done by means of parameterisation and is shown on the
faceplate.
Rate control is performed by the external module.
With up to 2 rates, the rate switching is operated by the communication
module directly or by control inputs. The rate switching for more than 2
rates can be operated only by the communication module.
Summation methods
Summation can take place in different ways:
"Ferraris mode":
As in Ferraris meters, the meter summates the values of the individual
phases taking the sign into account. With differing signs (energy directions)
Calibration
Start detection
Measured quantities
Measurement
channels
Energy registers
Rates
Rate control
Summation by vectors
+A/–A

Description of Unit 15/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
the sum corresponds to the difference between the positive and negative
values as shown in the figure below.
If the vectorial sum of the three vectors AL1, AL2, AL3 is positive, then active
energy is imported (+A).
If the vectorial summation of all three vectors AL1, AL2, AL3 is negative, then
active energy is exported (–A). See following figure.
The same applies to reactive energy. A distinction of the different quadrants
is also possible.
–10 kWh
0 kW h
10 kW h
1st hour
2 kW h
5 kW h
-3 kWh
4kWh
4 kW h
2nd hour
2 kW h
5 kW h
3 kW h
10 kW h
14 kW h
3rd hour
2 kW h
-5 kWh
-3 kWh
-6 kWh
8 kW h
L1
L2
L3
Sum
Cum sum
–10 kW h
0 kWh
10 kW h
1st hour
2 k W h
5 kW h
-3 kWh
4kWh
4 kW h
2nd hour
2 kW h
5 kW h
3 kW h
10 kW h
14 kW h
3rd hour
2 kW h
-5 kWh
-3 kWh
0 kW h
14 kW h
L1
L2
L3
Sum
Cum sum
Fig. 1.2 Example vectorial summation active energy (left ±A, right: only +A)
Summation by quantity separates the positive from the negative values of
the individual phases. Measured quantity +A therefore only includes the
positive values (+A1and +A3in example 1), measured quantity –A only
the negative values (–A2in example 1), provided any are present.
In case of a connection error, the meter measures correctly the real energy
consumption. It also measures a real export in the correct way.
For active energy import (+A) only positive magnitudes of AL1, AL2, AL3 are
counted. Negative magnitudes of AL1, AL2, AL3 are discarded.
For active energy export (–A) only negative magnitudes of AL1, AL2, AL3 are
counted. Positive magnitudes of AL1, AL2, AL3 are discarded.
The same applies to reactive energy. A distinction of the different quadrants
is also possible.
The following examples show the magnitude summation for active energy
import (left) and for active energy export (right).
–10 kW h
0 kW h
10 kW h
20 kW h
1st hour
2 kW h
5 kW h
-3 kWh
7 kW h
7 kW h
2nd hour
2 kW h
5 kW h
3 kW h
10 kW h
17 kW h
3rd hour
2 kW h
-5 kWh
-3 kWh
2 kW h
19 kW h
L1
L2
L3
Sum
Cum sum
–10 kW h
0 kW h
10 kW h
20 kW h
1st hour
2 kW h
5 kW h
-3 kWh
3 kWh
3 kW h
2nd hour
2 kW h
5 kW h
3 kW h
0 kW h
3 kW h
3rd hour
2 kW h
-5 kWh
-3 kWh
8 kW h
11 kW h
L1
L2
L3
Sum
Cum sum
Fig. 1.3 Example magnitude summation active energy (left: +A, right –A)
Summation by
quantity (magnitude)
Σ+A/Σ–A

16/56 Description of Unit
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
This method summates the quantity of the individual phases independent
of the energy direction. A connection error – however – has no effect on the
result of measurement.
But if there is a real export in one phase, this method leads to incorrect
measurement results.
With this method the meter adds exported and imported energy. This
method only makes sense if the utility is sure there is no energy export.
This method is available in vectorial and magnitude summation mode.
The absolute magnitude summation can be used as an anti-tampering
measure. Here negative magnitudes of AL1, AL2, AL3 are added to the positive
magnitudes of AL1, AL2, AL3. See example below.
–10 kW h
0 kW h
10 kW h
20 kW h
1st hour
2 kW h
5 kW h
-3 kWh
4kWh
4 kW h
2nd hour
2 kW h
5 kW h
3 kW h
10 kW h
14 kW h
3rd hour
2 kW h
-5 kWh
-3 kWh
6 kW h
20 kW h
L1
L2
L3
Sum
Cum sum
–10 kW h
0 kW h
10 kW h
20 kW h
1st hour
2 kW h
5 kW h
-3 kWh
10 kWh
10 kW h
2nd hour
2 kW h
5 kW h
3 kW h
10 kW h
20 kW h
3rd hour
2 kW h
-5 kWh
-3 kWh
10 kW h
30 kW h
L1
L2
L3
Sum
Cum sum
30 kW h
Fig. 1.4Example absolute value summation active energy (left: combined sum,
vectorial, always positive; right: combined sum, magnitude, always positive
per phase)
With this method the meter subtracts an exported energy from the
imported. It cannot detect a connection error.

Use of vectorial and magnitude mode
ZFF meters must work in vectorial mode – we do not have energy values
for each phase (3 phases and only 2 measurement systems).
For ZMF, most of the customers, use vectorial mode too. Only some
customers use magnitude mode, mainly for tamper prevention.
F-circuit
With F-circuit (Aron connection), only the sums of +R and -R are
calculated.
Summation by single
quantities
Σ|A Lx|
Summation by
Absolute value
|+A| + |–A|
Subtraction
|+A| – |–A|

Description of Unit 17/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
Fig. 1.5 E350 – Phase summation samples
In addition to the usual quantities, the measured quantities active, reactive
and apparent energy have further possibilities such as:
Subtraction of reactive energy |+R| – |–R|
Addition of reactive energy |+R| + |–R|
Quadrants +Ai, +Ac, –Ai, –Ac
etc.
More samples and applications are shown in the functional description.
The reactive energy (±Rc, ±Ri) is allocated to the 4 quadrants as follows:
+R
+ kWh
- kWh
-R
+Ri+Rc
-Rc-Ri
+A ImportExport -A
- kvarh - kvarh
+ kvarh+ kvarh
Quadrant II Quadrant I
Quadrant IVQuadrant III
Fig. 1.6 4-quadrant measurement (only inZxF100Cx meters)
The reactive energies of the individual phases can be allocated to the 4
quadrants in the same way.
Further measurement
quantities
Further samples
4-quadrant
measurement
Calculation
method A1
A2
A3
A1
A2
A3
A
1
A
2
A
3
Example 1 Example 2
+A
–A
+A
–A
A Lx
+A – –A
+A + –A
A
1
A
2
A
3
A
1
A
2
A
3
A
1
A
2
A
3
A
1
A
2
A
3
A
1
A
3
A
2
A
2
A
1
A
3
A
1
A
3
A
2
A
1
A
3
A
2
A
1
A
3
A
2
Register content
without sign

18/56 Description of Unit
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
A measured quantity can be assigned by parameterisation to each of the
10 (8 [M57])available channels. The following table shows some of the most
common measured quantities used:
Value OBIS Direction Quadrant(s) Phase Unit Remarks
+A 1.8.0 Import I + IV Sum kWh 1
+A 1.8.0 Import I + IV L1 + L2 +
L3
kWh 2
–A 2.8.0 Export II + III Sum kWh
|+A| + |–A| 15.8.0 Combined sum I + II + III + IV Sum kWh 3
+R 3.8.0 Import I + II Sum kvarh
+R 5.8.0 Import I Sum kvarh
+R 6.8.0 Import II Sum kvarh
–R 4.8.0 Export III + IV Sum kvarh
Remark 1: by vector (Ferraris mode)
Remark 2: by signal values (magnitude summation)
Remark 3: always positive registration (anti-tampering measure)
Sum = vectorial sum of ALi or RLi
L1 + L2 + L3 = magnitude sum
More configuration possibilities can be found in the functional description.
2.7 Instantaneous Values
Instantaneous values are updated every second.
The following instantaneous values are available:
Measured value Resolution Start value Max.
value
Voltages L1, L2, L3 1 V 170 V 440 V
Currents I1, I2, I3 0.01 A 0.2 A 120 A
Frequency 0.1 Hz 47 Hz 53 Hz
Power Factor 0.1 -1 1
Power 0.01 kW or 0.001 kW 1) I > 0.075 IbImax
Signed
Instantaneous
Reactive Power
QI+QII+QIII+QIV 2)
Instantaneous
Reactive Import
Power +R QI+QII 2)
Instantaneous
Reactive Export
Power –R QIII+QIV
2)
Channel configuration

Description of Unit 19/56
D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual © Landis+Gyr
Measured value Resolution Start value Max.
value
Instantaneous
Apparent Import
Power +VA 2)
Instantaneous
Apparent Export
Power -VA 2)
Instantaneous
Neutral Current 2) 3)
Instantaneous
Current ~ Sum of
I1, I2, I3 2) 3)
Instantaneous U1-
I1 angle 2)
1° for angles between
U - I
Instantaneous U2-
I2 angle 2) 3)
1° for angles between
U - I
Instantaneous U3-
I3 angle 2)
1° for angles between
U - I
Instantaneous U1-
U2 angle 2)
30° for angles between
U – U
Instantaneous U1-
U3 angle 2) 3)
30° for angles between
U – U
Instantaneous U2-
U3 angle 2)
30° for angles between
U – U
1) Depending on meter configuration (from FW version M27 onwards).
2) From FW version M29 onwards.
3) Not applicable to ZFF 3-phase 3-wire meters.
If no value is available, "---" can be shown (e.g. if in no-load or value below
start value).
2.8 Anti-Tampering and Tamper Prevention
E350 meters feature four optional anti-tampering functions:
Detection of terminal cover opening
Detection of DC magnetic field
Sealable access lock to voltage connections
Detection of supply control switch tampering (supply control switch
meters only)

20/56 Description of Unit
© Landis+Gyr D000027979 en t – E350 Series 2, 3-Phase ZxF100Ax/Cx – User Manual
2.9 Supply Control Switch
The ZxF100xB version of the E350 meter is equipped with a supply control
switch, which is controlled via the communication module. Various
functions can be implemented:
disconnection if credit has been used up
change to minimum power mode if credit has been used up
disconnection, if maximum power has been exceeded over a specified
time
others
The supply control switch can either be controlled via the communication
module or manually with the supply control switch button on the meter’s
terminal cover (if parameterised accordingly, see also section 5.1.2 "Supply
Control Switch Button").
2.10 Software Tools
Landis+Gyr meters are provided with optimum support by suitable software
tools during all phases of their life cycle:
The Landis+Gyr .MAP110 service tool for customers is used for the
test and installation of meters and for servicing work on the spot.
For the list of functions of .MAP110, please see .MAP documentation and
the E350 Series 2 Functional Description.