Overview
For utility operators aiming to upgrade their billing workflows and day‑to‑day operations, the D‑GR1 serves as a highly reliable diaphragm gas meter platform. Built‑in sensors, communication modules and integrated valve control come standard on this unit.
It works seamlessly for both prepaid and post‑paid service modes. Built‑in temperature and pressure compensation maintains consistent measurement accuracy over the full flow range. Featuring a 10‑year battery lifespan and IP65 ingress protection, it supports multiple communication options including NB‑IoT, 4G, LoRaWAN and NFC.
Housed in a durable field‑proven casing, the D‑GR1 cuts down on on‑site maintenance work, streamlines remote administration, and makes flexible dynamic pricing policies practically achievable.
Main Features
· Tiered billing
· Remote recharging
· EN1359 & EN16314
· Remote valve control
· Supporting post payment
· Auto-alarm for abnormality
· Multiple payment modes
· Communication: LTE&GPRS&NFC
Technical Parameters
|
Parameters |
Unit |
G1.6 |
G2.5 |
G4.0 |
|
|
Maximum Flowrate (Qmax) |
m³/h |
2.5 |
4 |
6.0 |
|
|
Minimum Flowrate (Qmin) |
m³/h |
0.016 |
0.025 |
0.040 |
|
|
MPE |
Qmin≤Q<0.1Qmax |
% |
± 3.0 |
||
|
0.1Qmax≤Q≤Qmax |
± 1.5 |
||||
| Maximum Working Pressure Pmax | kPa | 50 | |||
|
Maximum Pressure Absorption |
Pa |
≤250 |
|||
|
Gas Temperature Range (tg) |
℃ |
-25 ~ 55 |
|||
|
Ambient Temperature (tm) |
℃ |
-25 ~ 55 |
|||
|
Humidity |
% |
≤95 |
|||
| Battery Information | V | 3.6 V Lithium battery | |||
| Thread | Inch | G1¼" / Customized | |||
|
Overall Dimension |
/ |
195*170*220 |
|||
|
Protection Rating |
Class |
IP65 |
|||
|
Medium |
/ |
NG / LPG |
|||
|
Lifespan |
year |
≥ 10 |
|||
|
Electronical Environment |
Class |
E2 |
|||
|
Mechanical Environment |
Class |
M1 |
|||
|
Communication |
/ |
LTE/GPRS/NFC |
|||
|
Case Material |
/ |
Steel |
|||
|
A(mm) |
B(mm) |
C(mm) |
D(mm) |
E(inch) |
|
110 |
195 |
220 |
170 |
G1½" |
Why Choose Us
1. Market Insight:
VIEWSHINE has earned solid recognition in ultrasonic metering by closely tracking market trends and rapidly adapting to evolving customer requirements. Such market awareness steers our product development, allowing us to roll out practical solutions engineered to deliver steady and dependable performance under real‑world operating scenarios.
2. Design‑Driven Quality:
Our R&D and quality assurance teams implement standardized management throughout every phase, from initial concept design all the way to mass production. Supported by exhaustive testing and strict process supervision, every meter we make meets global certification benchmarks and frequently outperforms customers' expected performance levels.
3. Customer‑Centric Mindset:
We focus on creating smooth, open‑and‑transparent cooperation experiences for partners, covering initial enquiries all the way to long‑term after‑sales services. Our support team provides fast, clear responses and practical problem‑solving capabilities, helping us foster stable, long‑term partnerships with every customer.
4. Manufacturer‑Direct Advantage:
As a fully self‑operated manufacturer, VIEWSHINE cuts out redundant intermediate links and passes these efficiency gains onto customers via our pricing structure. Streamlined workflows allow us to supply premium metering solutions at competitive costs. You benefit from straightforward quotations, zero hidden charges, and dependable, consistent product quality.
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