Next Q

smart gas meter with NB-IoT technology

for sizes G1,6; G2,5; G4; G6

Advantages

modern design

clean lines, functionality
and harmony

device geolocation

determination of location when establishing and transmitting information

protected compartment

IP protection grade 65 for all
electronic components

built-in modem

integration with
remote systems

measurement accuracy

we guarantee a class of accuracy 1.5
in the stated range of flow rates

remote setup

remote firmware update
and settings

fixation of interference attempts

registration of unauthorized actions and notification of the operator

long autonomous operation

8 years of full operation
from 1 battery

temperature correction

the measured volume is displayed adjusted to standard conditions

Technical specifications

Parameter name / Meter size	G1,6	G2,5	G4	G6
Nominal consumption, Qnom, m³/h	1,6	2,5	4	6
Maximum flow rate, Qmax, m³/h	2,5	4	6	10
Minimum consumption, Qmin, m³/h
standard execution	0,016	0,025	0,04	0,06
custom execution		0,016	0,016	0,025
Transitional consumption, Qt, m³/h	0,25	0,4	0,6	1
Nominal cyclic volume, dm³	1,2			2
Nominal connection diameter, mm/thread of connecting fittings (ISO 228-1) (depending on the order)	20/G3/4; 25/G1; 32/G1 1/4			32/G1 1/4
Mass, kg, max	2,2			4,1
The center-to-center distance between connecting fittings, mm	110/130			250
Dimensions HxWxD, mm, max	205х168х220			338х174х248
Class accuracy	1,5
Class of external mechanical conditions	М1
The limits of allowable relative error in the range intervals of volumetric flow rate at a temperature of (20±2) °C:
Upon release from production and after repair:
in the flow range from Qt ≤ Q ≤ Qmax	± 1,5 %
in the flow range from Qmin ≤ Q < Qt	± 3 %
During operation:
in the flow range from Qt ≤ Q ≤ Qmax	± 3 %
in the flow range from Qmin ≤ Q < Qt	from minus 6% to 3%
Sensitivity threshold, max, m³/h	0,003
Maximum excess working pressure	50 kPa (0,5 bar)
The average pressure drop value for flow Qmax, Pa, max:
When released from production and after repairs	200
During operation	220
Capacity of the measuring device, m³	99999,999
Operating temperature range, °C	from minus 25 to 55
Relative humidity of air at a temperature not exceeding 25 °C without condensation of moisture. %	up to 95
Standard gas temperature, tb, °C *	20
The specified average temp., tsp, °C *	20
Carrier frequency, MHz	Band 3 (1800 MHz) Band 8 (900 MHz)
Maximum radiated power of LTE-MTC/eMTC and NB-IoT, max, dBm.	23,0
Voltage supply, V	до 3,6
The price of the smallest division of the measuring device, dm³	0,2
Service life	20 years

* – for the model with a built-in temperature conversion device

download the instruction