Specifications are subject to change without notice EM2696 DS ENG 261012 1
Class 1 (kWh) according to EN62053-21
Class B (kWh) according to EN50470-3
Class 2 (kvarh) according to EN62053-23
Accuracy ±0.5% RDG (current/voltage)
Dual colour backlight: no backlight, blue or white (selectable)
Energy analyzer
Instantaneous variables readout: 4 DGT
Energies/gas/water readout: 8 DGT
System variables: VLL, VLN, Admd, VA, VAdmd, VAdmd max, W,
Wdmd, Wdmd max, var, PF, Hz, Phase-sequence.
Single phase variables: VLL, VLN, A, VA, W, var, PF
Energy measurements: total and partial kWh and kvarh or
based on 4 different tariffs; single phase measurements
Gas, cold water, hot water, kWh
remote heating
measurements
Hour counter (6+2 DGT)
Harmonic analysis (FFT) up to 15th harmonic (current/voltage)
TRMS measurements of distorted sine waves (voltages/currents)
Universal power supply: 90 to 260AC/VDC
3digital inputs for tariff selection, DMD synch or gas/water (hot-
cold) and remote heating metering (on request)
3digital outputs for pulses or for alarms or as a mix of them
(on request)
Front dimensions: 96x96mm
Protection degree (front): IP50
RS485 serial output (on request) (MODBUS-RTU), iFIX SCADA
compatibility
Product Description
Three-phase energy analyzer
with built-in configuration joy-
stick and LCD data displaying;
particularly indicated for active
and reactive energy metering
M-bus communication by means of VMU-B adapter
Application adaptable display and programming
procedure (Easyprog function)
Easy connections management
Certified according to MID Directive (option PF only):
see “how to order” below
Other versions available (not certified, option XX):
see “how to order” on the next page
and for cost allocation. Housing
for panel mounting with IP50
(front) protection degree. Exter-
nal Current and potential trans-
formers connection. Moreover
Model
Range code
System
Power supply
Input/Output
Communication
Options
Measurement
How to order
EM26 96 AV5 3 H O3 S1 PF A
Type Selection
Range codes
AV5: 230 VLN/400VLL
1/5(10)A
VLN : 160 V to 480 VLN
VLL : 277 V to 830 VLL
AV6: 120 VLN/208VLL
1/5(10)A
VLN :40 V to 144 VLN
VLL :70 V to 250 VLL
Options
PF:
Certified according to
MID Directive, Annex
"B" + Annex "D" for
legal metrology relevant
to active electrical
energy meters (see
Annex MI-003 of MID).
Can be used for fiscal
(legal) metrology.
System
3: 3-phase, 4-wire;
Input/Output
O1: single open collector type
(pulse or alarm)
O3: 3open collector type
(mixed combination of
pulse, alarm and/or
remote output)
R2: dual relay type (functions
as per “O3”)
I3: 3digital inputs for tariff
selection or Gas/water/
energy/remote heating
metering
Communication
XX: none
S1: RS485 port
Energy Management
Energy Analyzer
Type EM26 96
the meter can be provided with
digital outputs that can be used:
for pulses proportional to the
active and reactive energy being
measured or for alarm outputs,
or for remote control. RS485
communication port and 3 digi-
tal inputs are available as an
option.
Certified according to MID Directive, Annex
"B" + Annex "D" for legal metrology relevant to
active electrical energy meters (see Annex MI-
003 of MID). Can be used for fiscal (legal)
metrology. Only the total positive energy meter is certified
according to MID.
MID
AV5
AV6
3O1
O3
R2
I3
H
PF
Range
System
Input/Output
Power supply
Option
Communication
XX
S1
S1
NOTE: please check the
availability of the needed
code on the verification path
diagram on left beforeorder.
A
B
Measurement
Power supply
H: 90 to 260VAC/DC (48
to 62Hz)
Measurement
A: The power is always
integrated (both in case
of positive and negative
power) and the total
energy meter is certified
according to MID.
B: Only the total positive
energy meter is certified
according to MID. The
negative energy meter
is not certified according
to MID.
2Specifications aresubject to change without notice EM2696 DS ENG 261012
EM26 96
Model
Range code
System
Power supply
Input/Output
Communication
Options
How to order
EM26 96 AV5 3 H O3 S1 XX
Type Selection
Range codes
AV5: 230 VLN/400VLL
1/5(10)A
VLN :160 V to 480 VLN
VLL :277 V to 830 VLL
AV6: 120 VLN/208VLL
1/5(10)A
VLN :40 V to 144 VLN
VLL :70 V to 250 VLL
Options
XX: none
System
3: balanced and
unbalanced load:
3-phase, 4-wire;
3-phase, 3-wire;
2-phase, 3-wire;
1-phase, 2-wire
Input/Output
O1: single open collector
type (pulse or alarm)
O3: 3open collector type
(mixed combination of
pulse, alarm and/or
remote output)
R2: dual relay type (functions
as per “O3”)
I3: 3digital inputs for tariff
selection or Gas/water/
energy/remote heating
metering
Power supply
H: 90 to 260VAC/DC
(48 to 62Hz)
Communication
XX: none
S1: RS485 port
Not certified according to MID directive. Cannot be
used for fiscal (legal) metrology.
STANDARD
AV5
AV6
3O1
O3
R2
I3
HXX
Range
System
Input/Output
Power supply
Option
Communication
XX
S1
NOTE: please check the
availability of the needed
code on the verification path
tables on left beforeorder.
Specifications are subject to change without notice EM2696 DS ENG 261012 3
EM26 96
Rated inputs System type: 3
Current type Galvanic insulation by
means of built-in CT’s
Current range (by CT) AV5 and AV6: 1/5(10)A
Voltage by direct connection
or VT/PT AV5: 230 VLN/400VLL;
AV6: 120 VLN/208VLL
Accuracy (Display + RS485) Ib: see below, Un: see below
(@25°C ±5°C, R.H. 60%,
50±5Hz/60±5Hz)
AV5 model In: 5A, Imax: 10A; Un: 160
to 480VLN (277 to 830VLL)
AV6 model In: 5A, Imax: 10A; Un: 40 to
144VLN (70 to 250VLL)
Current
AV5, AV6 models From 0.002In to 0.2In:
±(0.5% RDG +3DGT)
From 0.2In to Imax:
±(0.5% RDG +1DGT).
Phase-neutral voltage In the range Un: ±(0,5%
RDG +1DGT)
Phase-phase voltage In the range Un: ±(1% RDG
+1DGT)
Frequency ±0.1Hz (50±5Hz/60±5Hz)
Active and Apparent power ±(1%RDG +2DGT)
Power Factor ±[0.001+1%(1.000 - “PF
RDG”)]
Reactive power ±(2%RDG +2DGT)
Active Energy Class 1 according to
EN62053-21; class B
according to EN50470-3.
Reactive Energy Class 2 according to
EN62053-23
AV5, AV6 models In: 5A, Imax: 10A;
0.1 In: 0.5A.
Start up current: 10mA
Harmonic distortion THD up to 15th harmonic
±3% reading
Energy additional errors
Influence quantities According to EN62053-21,
EN62053-23
Temperature drift 200ppm/°C
Sampling rate 1600 samples/s @ 50Hz
1900 samples/s @ 60Hz
Display refresh time 750 msec
Display 3lines (1 x 8 DGT;
2x4DGT)
Type LCD, h 9.5mm, dual colour
backlight (selectable)
Instantaneous variables read-out 4DGT
Energies Exported: Total
6+1DGT or 7DGT (with “-“
sign).
Imported: 6+2, 7+1 or
8DGT
Overload status EEEE indication when the
value being measured is
exceeding the “Continuous
inputs overload” (maximum
measurement capacity)
Max. and Min. indication Max. instantaneous
variables: 9999; energies:
99 999 999. Min. instanta-
neous variables: 0; ener-
gies 0.00
LEDs Red LED (Energy
consumption), according to
EN50470-3, EN62052-11
0.001 kWh/kvarh by pulse
if CT ratio by VT ratio is 7;
0.01 kWh/kvarh by pulse if
CT ratio by VT ratio is > 7.1
70.0;
0.1 kWh/kvarh pulse if CT
ratio by VT ratio is > 70.1
700.0;
1kWh/kvarh by pulse if CT
ratio by VT ratio is > 700.1;
1000 imp./kWh/kvarh.
Max frequency: 16Hz
Measurements See “List of the variables
that can be connected to:”
Method TRMS measurements of
distorted wave forms.
Coupling type By means of external CT’s
Crest factor 3(15A max. peak)
Current Overloads
Continuous 10A, @ 50Hz
For 500ms 200A, @ 50Hz
Voltage Overloads
Continuous 1.2 Un
For 500ms 2 Un
Input impedance
208VL-L (AV6) >1M
400VL-L (AV5) >1M
1/5(10) A (AV5-AV6) < 0.3VA
Frequency 50±5Hz/60±5Hz
Joystick For variable selection:
programming of the
instrument working
parameters and Wdmd
max reset
Input specifications
4Specifications aresubject to change without notice EM2696 DS ENG 261012
EM26 96
Relay output
Physical outputs Max. 2
Purpose For alarm output, pulse
output or remote control.
Type Relay, SPST type
AC 1-5A @ 250VAC
DC 12-5A @ 24VDC
AC 15-1.5A @ 250VAC
DC 13-1.5A @ 24VDC
Insulation 4000 VRMS outputs to
measuring input.
4000 VRMS outputs to
power supply input.
RS485
Type Multidrop, bidirectional
(static and dynamic
variables)
Connections 2-wire
Max. distance 1000m
(without amplifier)
Termination directly on the
instrument
Addresses 247, selectable by means
of the front joystick
Protocol MODBUS/JBUS (RTU)
Data (bidirectional)
Dynamic (reading only) System and phase
variables: see table “List of
variables...”
Static (reading and writing) All the configuration
parameters.
Data format 1 start bit, 8 data bit, no
parity,1 stop bit
Baud-rate 4800, 9600 bits/s
Driver input capability 1/5 unit load
Maximum 160 transceivers
on the same bus, which
can be expanded with
signal amplifiers.
Insulation By means of optocouplers,
4000 VRMS output to
measuring input.
4000 VRMS output to
power supply input
Digital outputs
Pulse type
Number of outputs Up to 3, independent.
Programmable from 0.001
to 10.00 kWh/kvarh per
pulse.
Type Outputs connectable to the
energy meters (Wh/varh)
Pulse duration TON selectable (30 ms or
100 ms) according to
EN62053-31
TOFF:120ms, according to
EN62052-31
Alarm type
Number of outputs Up to 3, independent
Alarm modes Up alarm, down alarm (see
the table “List of the
variables that can be
connected to”)
Set-point adjustment From 0 to 100% of the
display scale
Hysteresis From 0 to full scale
On-time delay 0to 255s
Output status Selectable: normally
de-energized or normally
energized
Min. response time 700ms, filters excluded.
Set-point on-time delay: “0 s”
Remote control The digital ouputs status can
be managed by means of
serial communication RS485,
if programmed as remote.
Note The 3 digital outputs can
also work as a triple pulse
output, triple alarm output,
or in any other combination.
Static output
Physical outputs Max. 3
Purpose For pulse output, alarm
output or remote control.
Signal VON 1.2 VDC/ max. 100 mA
VOFF 30 VDC max.
Insulation By means of optocouplers,
4000 VRMS output to
measuring inputs,
4000 VRMS output to
power supply input.
Output specifications
Number of inputs 3
Input frequency 20Hz max, duty cycle 50%
Prescaler adjustment From 0.001 to 999.9 m3or
kWh/pulse
Contact measuring voltage 5VDC +/- 5%
Contact measuring current 10mA max
Input impedance 680
Contact resistance 100,closed contact
500k,open contact
Digital input specifications
Working modes Selectable:
total and partial energy
meters (kWh and kvarh)
managed by time periods
(t1-t2-t3-t4), W dmd
synchronisation (the
synchronisation is made
every time the tariff
changes) and GAS (m3)or
WATER (hot-cold m3)or
Specifications are subject to change without notice EM2696 DS ENG 261012 5
EM26 96
Password Numeric code of max. 4
digits; 2 protection levels
of the programming data:
1st level Password“0”, no protec-
tion;
2nd level Password from 1 to 9999,
all data are protected
System selection
System 3-Pn unbalanced load 3-phase (4-wire);
3-phase (3-wire).
System 3-P 1 balanced load 3-phase (3-wire) one cur-
rent and 3-phase to phase
voltage measurements.
3-phase (4-wire) one cur-
rent and one-phase (L1) to
neutral voltage measure-
ment.
System 2-P 2-phase (3-wire).
System 1-P 1-phase (2-wire).
Transformer ratio
VT (PT) 1.0 to 999.9 / 1000 to
6000.
CT 1.0 to 999.9 / 1000 to 9999
/10.00k to 60.00k.
The maximum power being
measured cannot exceed
210 MW (calculated as
maximum input voltage
and current, see the
“Accuracy” paragraph (on
page 2). The maximum VT
by CT ratio is 48600. If the
currents and/or voltages
being measured exceed
their maximum limits, the
display shows the error
message “EEEE”.
For EN50470-3 compliant
applications the maximum
power being measured is
25 MW.
Filter
Operating range 0to 100% of the input dis-
play scale
Filtering coefficient 1 to 32
Filter action Measurements, serial out-
put (fundamental variables:
V, A, W and their derived
ones).
Displaying Up to 3 variables per page
See « Display pages » 8
different set of variables
available (see « Display
pages ») according to the
application being selected
Alarm highlight In case of alarm and if the
relevant function is
enabled, the display
changes the colour alterna-
tively from white backlight
to blue backlight and vice
versa.
Reset By means of the front
joystick:
-dmd and max. dmd;
-total energies and
gas/water: kWh, kvarh;
-partial energies and
tariffs: kWh, kvarh
Harmonic analysis Up to the 15th harmonics
on single current and
voltage
Software functions
remote heating (kWh)
meters or external kWh
meter;
total and partial energy
meters (kWh and kvarh)
managed by time periods
(t1-t2), W dmd synchroni-
sation (the synchronisation
is made independently of
the tariff selection) and
GAS (m3)or WATER
(hot-cold m3)or remote
heating (kWh) meters or
external kWh meter;
total energy (kWh, kvarh)
and GAS, WATER (hot-cold
m3)and remote heating
meters or external kWh
meter, 3 choices only.
Digital input specifications (cont.)
Note The energy metering is
only made by means of the
analogue inputs.
Insulation By means of optocouplers,
4000 VRMS digital inputs
to measuring inputs.
4000 VRMS digital inputs
to power supply input.
6Specifications aresubject to change without notice EM2696 DS ENG 261012
EM26 96
Auxiliary power supply H: 90 to 260VAC/DC
(48 to 62Hz)
Power consumption
AC: 6VA
DC: 3.5 W
Power supply specifications
Immunity to conducted
disturbances 10V/m from 150KHz to
80MHz
Surge On current and voltage
measuring inputs circuit:
4kV;
Radio frequency suppression According to CISPR 22
Standard compliance
Safety IEC60664, IEC61010-1
EN60664, EN61010-1
EN62052-11
Metrology EN62053-21, EN50470-3,
EN62053-23.
Pulse output DIN43864, IEC62053-31
Approvals CE, cULus listed, MID (PF
option only)
Connections Screw-type
Cable cross-section area Max. 1.5 mm2
Housing
Dimensions (WxHxD) 96 x 96 x 63 mm
Material ABS,
self-extinguishing: UL 94 V-0
Mounting Panel mounting
Protection degree
Front IP50
Screw terminals IP20
Weight Approx. 400 g (packing
included)
Operating temperature -25°C to +55°C (-13°F to
131°F) (R.H. from 0 to 90%
non-condensing @ 40°C)
according to EN62053-21
and EN62053-23
Storage temperature -30°Cto +70°C (-22°F to
158°F) (R.H. < 90% non-
condensing @ 40°C)
according to EN62053-21
and EN62053-23
Installation category Cat. III (IEC60664,
EN60664)
Insulation (for 1 minute) 4000 VRMS between mea-
suring inputs and power
supply.
4000 VRMS between power
supply and RS485 digital
outputs
Dielectric strength 4000 VRMS for 1 minute
Noise rejection CMRR 100 dB, 48 to 62 Hz
EMC According to EN62052-11
Electrostatic discharges 15kV air discharge;
Immunity to irradiated Test with current: 10V/m
from 80 to 2000MHz;
Electromagnetic fields Test without any current:
30V/m from 80 to
2000MHz;
Burst On current and voltage
measuring inputs circuit:
4kV
General specifications
Software functions (cont.)
Easy connection function For all the display selections,
both energy and power
measurements are inde-
pendent of the current
direction. The displayed
energy is always “imported”
with the only exception of
“F” and “H” types (see
“display pages” table).
For these latter selections
the energies can be either
“imported” or “exported”
depending on the current
direction.
Specifications are subject to change without notice EM2696 DS ENG 261012 7
EM26 96
Phase variables
Instantaneous effective voltage
Instantaneous active power
Instantaneous power factor
Instantaneous effective current
Instantaneous apparent power
Instantaneous reactive power
Accuracy (according to EN50470-3 and EN62053-23)
kWh,accuracy (RDG) depending on the current
10A (Imax)
10A (Imax)
5A (In)
5A (In)
0.25A (Itr)
0.25A (Itr)
0.05A (Imin)
Accuracy limits (Active energy)
Start-up current: 10mA
kvarh,accuracy (RDG) depending on the current
Accuracy limits (Reactive energy)
Start-up current: 10mA
PF=1
PF=L0.5
or C0.8
10A (Imax)
10A (Imax)
5A (In)
5A (In)
0.25A
0.5A
0.1A
0.25A
sinϕ=1
sinϕ=0.5
+1%
0%
+1.5%
-1%
-1,5%
+2%
0%
+2,5%
-2%
-2,5%
System variables
Equivalent three-phase voltage
Three-phase reactive power
Three-phase active power
Three-phase apparent power
Three-phase power factor
(TPF)
Used calculation formulas
Energy metering
Where:
P=active power;
Q=reactive power;
t1, t2=starting and ending time points
of consumption recording;
nj=time unit;
t=time interval between two succes-
sive power consumptions;
n1, n2=starting and ending discrete
time points of consumption recording
MID “Annex MI-003” compliance (PF option only)
Accuracy 0.9 Un U1.1 Un;
0.98 fn f1.02 fn;
fn: 50Hz;
cosϕ:0.5 inductive to 0.8
capacitive.
AV5-AV6 models Class B. I st: 0.01A; I min:
0.05A; I tr: 0.25A; I n: 5A;
Imax: 10A
Operating temperature-25°C to +55°C (-13°F to
131°F) (R.H. from 0 to 90%
non-condensing @ 40°C)
EMC compliance E2
Mechanical compliance M2
Protection degree in order to achieve the
protection against dust and
water required by the
norms harmonized to MID,
the meter must be used
only installed in IP51 (or
better) cabinets.
Where: n=sample number
PF
Percentage error limits for class index B
8Specifications aresubject to change without notice EM2696 DS ENG 261012
EM26 96
RS485 communication port
Alarm outputs (“max” variable”, “energies” and “hour counter” excluded)
Pulse outputs (only positive “energies”)
No Variable 1-phase 2-phase 3-ph. 4-wire 3-ph. 4-wire 3 ph. 3-wire 3 ph. 3-wire Notes
system system balanced sys. unbal. sys. bal. sys. unbal. sys.
1 V L-N sys x x x x x sys=system
2VL1 x x x x x x
3 V L2 o x x x x x
4VL3 o o x x x x
5VL-L sys o x x x x x sys=system
6 V L1-2 o x x x x x
7VL2-3 o o x x x x
8 V L3-1 o o x x x x
9 A dmd max x x x x x Highest “dmd”
current among
the phases (1)
10 A L1 x x x x x x
11 A L2 o x x x x x
12 A L3 o o x x x x
13 VAsys x x x x x x sys=system
14 VA sys dmd x x x x x x sys=system (1)
15 VA L1 x x x x x x
16 VAL2 o x x x x x
17 VA L3 o o x x x x
18 var sys x x x x x x sys=system
19 var L1 x x x x xx
20 var L2 o x x x x x
21 var L3 o o x x xx
22 W sys x x x x x x sys=system
23 Wsys dmd x x x x x x sys=system (1)
24 WL1 x x xxx x
25 W L2 o x x x x x
26 WL3 ooxxx x
27 PF sys x x x x x x
28 PF L1 x x x x x x
29 PF L2 oxxxx x
30 PF L3 o o x x x x
31 Hz x x x x x x
32 Phase seq. oo x x x x
33 Hours xxxxx x
34 kWh (+) x x x x x x Total or by user
35 kvarh (+) x x x x x x Total or by user
36 kWh (+) x x x x x x Partial or by tariff
37 kvarh (+) x x x x x x Partial or by tariff
38 kWh (-) x xxxxx Total
39 kvarh (-) x x x x x x Total
40 m3Gas x x x x x x Total
41 m3Cold H2O x x x x x x Total
42 m3Hot H2O x x x x x x Total
43 kWh H2Ox x x x x x Total
44 kWh out x x x x x x Total
45 AL1 THD x x x x x x
46 A L2 THD o x x x x x
47 A L3 THD o o x x x x
48 VL1 THD xxxxxx
49 V L2 THD o x x x x x
50 V L3 THD o o x x x x
51 V L1-2 THD x x x x x x
52 V L2-3 THD o x x x x x
53 V L3-1 THD o o x x x x
(x) = available; (o) = not available (zero indication on the display); (1) Max. value with data storage.
List of the variables that can be connected to:
Specifications are subject to change without notice EM2696 DS ENG 261012 9
EM26 96
Display pages
Sel.
pos. No 1st variable
(1st line)
2nd variable
(2nd line)
3rd variable
(3rd line) Note Applications
A B C D E F G H
1 Total kWh (+) Wsys dmd W sys dmd max x x x x x x x
2kWh (+) Admd max PArt” PArt” = Partial kWh (+) x x x
3 Total kvarh (+) VA sys dmd VA sys dmd max x x x x x
4 kvarh (+) VA sys “PArt” “PArt” = Partial kvarh (+) x x x
5 Totalizer 1 (2) Wsys (text) (3) (1) x x x x
6 Totalizer 2 (2) Wsys (text) (3) (1) x x x x
7 Totalizer 3 (2) Wsys (text) (3) (1) x x x x
8 kWh (+) t1 (text) (4) Wsys dmd (1) digital input enabled x x x x
9 kWh (+) t2 (text) (4) Wsys dmd (1) digital input enabled x x x x
10 kWh (+) t3 (text) (4) Wsys dmd (1) digital input enabled x x x x
11 kWh (+) t4 (text) (4) Wsys dmd (1) digital input enebled x x x x
12 kvarh (+) t1 (text) (4) Wsys dmd (1) digital input enabled x x x x
13 kvarh (+) t2 (text) (4) Wsys dmd (1) digital input enabled x x x x
14 kvarh (+) t3 (text) (4) Wsys dmd (1) digital input enabled x x x x
15 kvarh (+) t4 (text) (4) Wsys dmd (1) digital input enabled x x x x
16 kWh (+) X W X User X (1) specific function enabled x
17 kWh (+) Y W Y User Y (1) specific function enabled x
18 kWh (+) Z W Z User Z (1) specific function enabled x
19 Total kvarh (-) VA sys dmd VA sys dmd max x x
20 Total kWh (-) Wsys dmd Wsys dmd max x x x
21 Hours Wsys PF sys x x x x
22 Hours var sys PF sys x x x x
23 WL1 WL2 WL3 x x x
24 VAL1 VAL2 VAL3 x x
25 var L1 var L2 var L3 x x
26 PF L1 PF L2 PF L3 x x
27 VL1 VL2 VL3 x x x x x
28 VL1-2 VL2-3 VL3-1 x x
29 AL1 AL2 AL3 x x x
30 Phase seq. VLN sys Hz x x x x x x x
31 Phase seq. VLL sys Hz x x x
32 ASY VLL sys % x x x
33 ASY VLN sys % x x x
34 THD A1 THD A2 THD A3 x x
35 THD V1 THD V2 THD V3 x x
36 THD V12 THD V23 THD V 31 x x
37 Lot number Year DMD time x x x x x x x x
38 CT ratio Value of CT System x x x x x x x x
39 VT/PT ratio Value of VT Connection x x x x x x x x
40 a Alarm 1 status Set-point value Variable type x x x x
41 a Alarm 2 status Set-point value Variable type x x x x
42 a Alarm 3 status Set-point value Variable type x x x x
40 bPulse 1 status Output pulse x x x x x x x x
41 b Pulse 2 status Output pulse x x x x x x x x
42 b Pulse 3 status Output pulse x x x x x x x x
43 Serial port Address RS485 status x x x x x x x x
0Selector position which can be linked to any of the variable combinations listed above (No. from 1 to 36)
1Selector position which can be linked to any of the variable combinations listed above (No. from 1 to 36)
2Selector position which can be linked to any of the variable combinations listed above (No. from 1 to 36)
3Selector position which can be linked to any of the variable combinations listed above (No. from 1 to 36).
In this position the front LED blinks proportionally to the reactive energy (kvarh) being measured
(1) The page is available according to the enabled measurement. (2) m3Gas, m3Water,kWh remote heating, external kWh
counter.(3) Hot or Cold (water), gas, ENE (external energy meter). (4) The active tariffis displayed with an “A” before the “t1-
t2-t3-t4” simbols.
10 Specifications aresubject to change without notice EM2696 DS ENG 261012
EM26 96
Additional available information on the display
List of selectable applications
Type 1st line 2nd line 3rd line
Meter information pag. 1 Firmware release Year Year of production
Meter information pag. 2 Pulse LED Value
Meter information pag. 3 System 2w, 3w or 4w
Meter information pag. 4 CTratio Value of CT ratio
Meter information pag. 5 PT ratio Value of PT ratio
In case of alarm output
pag.6a
Alarm output 1, 2 or 3 status
(ON/OFF) Set-point value Variable type
In case of pulse output
pag. 6b
Pulse output 1,2 or 3 variable
link (kWh/kvarh)
Output pulse weight
(kWh/kvarh per pulse)
In case of communication
port pag.7 Serial port Address RS485 status (RX-TX)
In case of communication
port pag.8
Secondary address
(for M-bus protocol) Sn
Description Notes
ABasic domestic ** Main energy metering
BShopping centres ** Main energy metering
CAdvanced domestic** Main energy metering (total and based on tariff), gas and
water metering
DMulti domestic (also camping and marinas) */** Main energy metering (3 by single phase)
ESolar *Energy meter with some basic power analyzer functions
FIndustrial *Main energy metering
GAdvanced industrial ** Energy metering and power analysis
HAdvanced industrial for power generation *Complete energy metering and power analysis
Insulation between inputs and outputs
Measuring Inputs Relay
output Open collector
outputs Comm. port Digital inputs Auxiliary power supply
Measuring Inputs - 4kV 4kV 4kV 4kV 4kV
Relay output 4kV - - 4kV - 4kV
Open collector
outputs 4kV - - 4kV - 4kV
Comm. port 4kV 4kV 4kV - 4kV 4kV
Digital inputs 4kV - - 4kV - 4kV
Aux. power supply 4kV 4kV 4kV 4kV 4kV -
NOTE: all the models with auxiliary power supply have, mandatory, to be connected to external current transformers
because the insulation among the current inputs is just functional (100VAC).
Tamper proof and display page selection
Lock of programming with seal.
Selection of up to 4 main pages
(programmable by the user).
Easy access to specific display pages.
Notes:*Not available with option PF A. ** Not available with option PF B
Specifications are subject to change without notice EM2696 DS ENG 261012 11
EM26 96
3-CT and 2-VT/PT connections
3-ph, 3-wire, unbalanced load Fig. 4
2-CT and 2-VT/PT connections ARON
3-ph, 3-wire, unbalanced load Fig. 6
2-CT connections (ARON)
3-ph, 3-wire, unbalanced load Fig. 5
1-CT and 2-VT/PT connections
3-ph, 3-wire, balanced load Fig. 8
3-CT connection
3-ph, 3-wire, unbalanced load Fig. 3
1-CT connection
3-ph, 3-wire, balanced load Fig. 7
System type selection: 3P.n
System type selection: 3P.1
Wiring diagrams
3-CT and 3-VT/PT connections3-CT connection
3-ph, 4-wire, unbalanced load Fig. 2
3-ph, 4-wire, unbalanced load Fig. 1
System type selection: 3P.n
NOTE: a2-wire connection for voltage mea-
surement is available across 15 and 17 .
12 Specifications aresubject to change without notice EM2696 DS ENG 261012
EM26 96
2-CT connection
2-ph, 3-wire Fig. 9
Wiring diagrams
System type selection: 2P
2-CT and 2-VT/PT connections
2-ph, 3-wire Fig. 10
1-CT connection
1-ph, 2-wire Fig. 11
System type selection: 1P
1-CT and 1-VT connections
1-ph, 2-wireFig. 12
System type selection: 1P
100 to 230VAC/DC (“H” option) Fig.13
F= 250V [T] 100mA
Auxiliary power supply wiring diagrams
Digital inputs and RS485 portwiring diagrams
Digital Inputs RS485 port
RS485 NOTE: additional devices provided with RS485 areconnected in parallel. The termination of the serial output is car-
ried out only on the last instrument of the network, by means of a jumper between (A-) and (T).
Specifications are subject to change without notice EM2696 DS ENG 261012 13
EM26 96
1. Display
LCD-type with alphanumeric indications to:
-display configuration parameters;
-display all the measured variables.
2. Selector
To select the desired display pages and to lock the
programming.
3. Joystick
Toprogram the configuration parameters and scroll the
variables on the display.
4. LED
Red LED blinking proportionally to the energy being
measured.
Front panel description
2
1
3
Dimensions and Panel Cut-out
Open collector and relay outputs wiring diagrams
GND reference VDC reference
The load resistances (RC) must be designed so that the close contact current is lower than
100mA; the VDC voltage must be lower than or equal to 30VDC.
Open Collector Open Collector Relay
VDC
4
VDC
Out 1
Out 2
Out 3
GND
GND
GND
VDC
123
RC
RC
RC
Out 1
VDC
GND
RC
Out 2
VDC
GND
RC
Out 3
VDC
GND
RC
123
91mm