G10 - G16 - G25
A comprehensive range of smart and integrated gas meters
small and easy to install displaying readings
in standard cubic meters,
no external devices needed for conversion and for communication,
for an accurate billing transparent to the end customer.
MAIN BENEFITS
available with GPRS communication
technology (also available with
M-Bus communication technology,
on request).
An innovative static
measurement principle
Accuracy of measurement at every
temperature and at every pressure
Measurement is intrinsically compensated in
temperature and independent from pressure.
Measurement is displayed directly in standard
cubic-meters*.
The measurement technology is based on a
MEMS “Micro Thermal Flow Sensing” principle.
Two temperature sensors are symmetrically
placed around a micro-heating element: under
stopped-flow conditions, both sensors measure
the same temperature. As the flow rate increases,
heat is carried away from the upstream sensor
towards the downstream sensor and the
measured temperature difference between the
two sensors is proportional to the mass flow rate.
Domusnext® meters provide an exact
measurement of supplied gas in standard m3,
avoiding the use of annual average temperatures
and conversion factors, which inevitably lead
to approximate values and errors of estimation.
These errors then affect the amount billed.
Transparent billing to the end customer
Memory storage of daily or hourly consumption,
with frequent communication of data, means
customer invoicing can be transparent and
timely, referring to the exact billing period, with
low operating costs.
G10 GPRS
G16 GPRS
Despite being highly innovative, Domusnext®
meters have passed the most stringent reliability
tests, conducted by notified body and designated
laboratories recognised at European level. This
certifies the robustness of MeteRSit meters and
the accuracy of their measurements, even at
high concentrations of dust and contaminants
in the gas distribution networks. The high
accuracy of the measuring principle ensures the
gas meter compliance with the MID (Measuring
Instruments Directive). Such micro-thermal
measuring principle is also commonly used
in laboratory instruments. Resistance to
contaminants and dust is ensured by design.
Gas recognition
The accuracy of measurement is not affected
by changes in the chemical composition of the
European distributed gases within the 2nd family
groups H and L (as defined by
EN 437:2003). By measuring specific gas
properties, a pre-set auto-calibration process
guarantees the required accuracy levels without
any additional adjustment.
The meter is also able to operate in air (test
phase), by calibrating itself accordingly without
any additional adjustment.
Tariff management
Management of 3 tariffs, with consumption
divided into 5 daily tariff bands, which can be
programmed for weekdays, weekends/public
holidays and daylight saving time.
G25 GPRS
Innovation and reliability
Connectivity
The application software can be remotely
updated or locally updated via optical port in
accordance with the EN 62056-21.
SIM card is replaceable on location; it is
accessible from the battery compartment.
The meter is equipped with an Integrated high
performance antenna.
An external antenna is available on request.
Noise level
Thanks to the static technology adopted, the
meter has a very low level of noise and practically
no wear . This characteristic is well appreciated in
particular for domestic application.
* According to UNI EN ISO 13443 standard
05_2015 rev.00
G10, G16 and G25 meters are
G10 - G16 - G25
G6 Accuracy in air and gas
4
2
Deviation [%]
Technical data
3
1
0
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
-1
-2
Maximum Permissible Error 'MPE' (Class 1,5)
MPE for temperature compensated meters (Class 1,5)
Air
H gas sample
-3
-4
-5
Flowrate [m³/h at 15°C, 1013,25 mbar]
Nr. Of tariffs
Depth of consumption registers @ 1 day rate
Depth of consumption registers @ 1 hour rate
Nominal Diameter DN
Inlet & Outlet Distance
Width x Height x Depth
Weight
Resistance to water, dust and impact
ATEX
Display
Optical port
Battery supply
Functioning without external battery
436
52
188
78
145.5
øD
3
G4 Accuracy in air and gas
2
Deviation [%] Deviation [%]
Deviation [%]
4
1
3
0
2
0
G4 Accuracy
in air and
10
15 gas
5
20
25
4-11
3-20
0,0
0,5
1,0
1,5
2,0
2,5
3,0
2-1
-3
1-2
-4
Maximum Permissible Error 'MPE' (Class 1,5)
0-3
0,0
0,5
1,0
Flowrate [m³/h at 15°C, 1013,25
mbar]
MPE for temperature compensated meters (Class 1,5)
1,5
2,0
2,5
3,0
-4
-1
3,5
4,0
Air
H gas sample
4,5
5,0
5,5
Flowrate [m³/h at 15°C,Maximum
1013,25Permissible
mbar] Error 'MPE' (Class 1,5)
4
-4
3
-5
2
MPE for temperature compensated meters (Class 1,5)
Air
H gasand
sample gas
G16 Accuracy in air
4
Flowrate [m³/h at 15°C, 1013,25 mbar]
1
3
0
0
2
5
10
15
20 air and
25 gas
G16 Accuracy
in
30
35
-2
3
0
-30
2
-1
5
-4
1
-2
0
-3
Maximum Permissible Error (Class 1,5)
MPE
meters (Class 1,5)
15for temperature compensated
20
25
Air
H gas sample
10
Flowrate [m³/h at 15°C, 1013,25
mbar] Error (Class 1,5)
Maximum Permissible
0
5
MPE for temperature compensated meters (Class 1,5)
20
25
Air 15
H gas sample
10
-1
-4
Flowrate [m³/h at 15°C, 1013,25 mbar]
-2
Maximum Permissible Error (Class 1,5)
MPE for temperature compensated meters (Class 1,5)
Air
-3
G25 Accuracy in air
H gasand
sample gas
-4
4
Flowrate [m³/h at 15°C, 1013,25 mbar]
3
G25 Accuracy in air and gas
2
4
1
3
0
2
-1
0
5
10
15
20
1
-2
0
-3
-1
-4
-2
-3
-4
0
5
10
15
20
25
30
35
Flowrate [m³/h at 15°C, 1013,25 mbar]
Maximum Permissible Error (Class 1,5)
MPE for temperature compensated meters (Class 1,5)
Air
H gas sample
Flowrate [m³/h at 15°C, 1013,25 mbar]
19 41
188
163
103
Model
G10 GPRS
G16-GPRS
G25-GPRS G 2
=
øD
G 2 ( ø 59,6)
G 2 ( ø 59,6)
1/2 ( ø 75,2)
48
L
280
280
335
40
Maximum Permissible Error (Class 1,5)
MPE for temperature compensated meters (Class 1,5)
30
35
40
Air 25
H gas sample
110
123.5
40
-1
4
1
www.metersit.com
=
6,0
G25 Accuracy in air and gas
-5
-2
-3
3,5
4,0
4,5
5,01,5)
5,5
6,0
Maximum
Permissible
Error (Class
MPE for temperature compensated meters (Class 1,5)
Air
H gas sample
25
137.5
L
G10 Accuracy in air and gas
4
Deviation [%] Deviation [%]
Deviation [%]
Standard temperature for volume output
Operating temperature
Standard pressure for volume output
Gas application
Max. operating pressure
Accuracy class
Measuring AccuracyQmin Qt
Measuring AccuracyQt Qmax
Max. Pressure drop
MID T10362 Module B and CE-193 Module D
G10: 0.10-16.0 m3/h G16: 0.16-25.0 m3/h
G25: 0.25-40.0 m3/h
15 °C
-25 °C to 55 °C 1013.25 mbar
2nd Family Group H and L (EN 437)
500 mbar
1.5
± 3.0 %
± 1.5 %
G10, G16: <2 mbar at Qmax
G25: <3 mbar at Qmax
3
72 days
72 days
G 2” - ISO 228/1
G10, G16: 280 mm G25: 335 mm
436 x 188 x 188 mm
5.7 kg
IP 65, IK 08
zone 1
Ex II 1/2 G Ex ib IIB T4
(CEC12 ATEX019 12/2031 AET 944)
2 lines multi-segment display,
Upper line 10 characters
Lower line 9 digits
Automotive range –30°C to +85°C
EN 62056-21
3.6 V size D lithium cell (19Ah)
3,6 V size AA lithium cell (2.2Ah)
> 5000h
Deviation [%] Deviation [%]
Type Approval
Measuring range
Main Office
Via Felice Casati 44 - 20124 Milano
Tel. +39 02 67841211
email: [email protected]
Registered Office
Viale dell’ Industria 31-33 - 35129 Padova
Tel. +39 049 8293111
Production Plant
Via Achille Grandi 6 - 45100 Rovigo
All information is subject to change without notice