Overview
VIEWSHINE U-GR4 is a high-precision ultrasonic gas meter with IoT connectivity and an integrated shut-off valve. Designed for both residential and commercial applications, it offers a wide measuring range of 0.016 to 6 m³/h, no moving parts, and full electronic measurement - ensuring reliable performance as an ultrasonic natural gas meter.
With real-time environmental compensation, it maintains stable accuracy under extreme conditions. The wear-free electronic architecture reduces maintenance costs. As an IoT-ready smart gas meter, it supports cloud monitoring, predictive analytics, and remote safety control for automated utility management.
Main Features
1. Compact size
2. Reliable stability
3. Remote management
4. Accurate measurement
5. Intelligent alarm system
6. Wide measuring range ratio
7. Strong anti-interference ability
8. Multiple communication modes
9. Real-time temperature & pressure compensation
10. EN14236:2018 & OIML R137 & WELMEC 7.2
Technical Parameters
|
Type |
GR |
|||
|
Parameters |
Unit |
G1.6 |
G2.5 |
G4 |
|
Nominal Measured Flow Qnom |
m³/h |
1.6 |
2.5 |
1.6/2.5/4.0 |
|
Maximum Measured Flow Qmax |
m³/h |
2.5 |
4 |
6.0 |
|
MinimumMeasured Flow Qmin |
m³/h |
0.016 |
0.025 |
0.040 |
|
Lowest Flow Rate Qstart |
m³/h |
0.004 |
||
|
Error - Qmin ≤ Q < 0,1Qmax - 0,1Qmax ≤ Q ≤ Qmax |
% |
± 3.0 ± 1.5 |
||
|
Transitional Flow Rate Qt |
m³/h |
0.1Qmax |
||
|
Maximum Working Pressure Pmax |
kPa |
≤50 |
||
|
Pressure Loss at Qmax |
Pa |
≤200 |
||
|
Counter Capacity |
m³ |
999999,999 |
||
|
Minimum Counting Division |
m³ |
0,0001 |
||
|
Ambient Temperature tm |
°С |
-25 to +55 |
||
|
Storage Temperature |
°С |
-30 to 60 |
||
|
Humidity |
% |
≤95% |
||
|
Power Supply |
|
Li battery |
||
|
In- and Outlet Pipe Screw |
Inch |
G11/4 (ISO228) |
||
|
Distance Between Inlet and Outlet |
mm |
110 |
||
|
Protection Level |
Class |
IP65 |
||
|
Mass, Not More Than |
kg |
2.5 |
||
|
Overall Dimensions |
mm |
207*113*142 |
||
|
Medium |
|
NG |
||
|
Mechanical Environment |
Class |
M1 |
||
|
Electronical Environment |
Class |
E2 |
||
|
Design Lifetime |
Year |
15 |
||
|
Metrological Battery Lifetime |
Year |
10 |
||
|
Communication |
|
Nb-IoT / GPRS /4G/LoRaWAN |
||
|
Material of Meter Body |
|
Die-casting Aluminum |
||
|
Material of Case |
|
PVC |
||
|
Material of Valve |
|
POM |
||
Dimension
Why Choose Us
1. Extensive Industry Expertise
Viewshine is a leading ultrasonic gas meter manufacturer and smart water meter supplier, delivering IoT-based metering solutions to gas utilities, water utilities, and industrial clients worldwide.
2. Skilled Professionals
Our in-house R&D and QC teams ensure rigorous quality assurance for every ultrasonic gas meter and smart water meter, fully compliant with MID, OIML, and CE certification standards.
3. Dedicated B2B Customer Support
From technical consultation to post-warranty service, we provide dedicated support for distributors and utility partners, ensuring seamless integration and long-term reliability.
4. Competitive Pricing
As a direct manufacturing factory, we are able to offer competitive pricing without compromising on quality. Our streamlined production processes and efficient operations allow us to provide cost-effective solutions that align with your budgetary needs. We believe in delivering value without compromise.
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