DN400-1000 Large-Diameter Electromagnetic Water Meter with Wide Range Ratio

Industry-leading electromagnetic water meters in the full DN400–DN1000 range, powered by lithium batteries and featuring IP68 protection.

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High-precision electromagnetic water meter

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产品描述

I. Product Introduction: Turning Flow Meters into Water Meters

In the field of electromagnetic metrology, DN300 marks a watershed moment:

• Electromagnetic water meters with diameters ≤DN300 have long been commonplace;

• For diameters ≥DN400, the conventional approach traditionally allows only for “electromagnetic flowmeters”—which require mains power, long straight pipe sections, and come with significantly high overall costs.

De Gao spent seven years overcoming three major challenges: excitation power consumption, stable current control, and full IP68 sealing. They were the first to classify DN1000 as part of the "lithium-battery water meter" category, enabling city-wide main pipelines to enjoy a maintenance-free experience comparable to household-level meters.

Product positioning: A full range of electromagnetic water meters—from DN400 to DN1000—powered by lithium batteries and featuring IP68 protection.

Technical Core:

• Faraday electromagnetic induction + dual-frequency rectangular wave excitation;

• Pioneered the "Power Budget - Dynamic Sleep" algorithm, achieving a static current of ≤ 100 µA for the entire device;

Working continuously for more than 6 years.

II. Product Specifications:

Caliber	DN400-DN1000
Measurement range ratio R	160
Precision	Level 2
Power Supply	3.6V lithium battery, with a lifespan of over 6 years—customizable (220VAC + lithium battery) dual power supply
Protection	IP68
Pressure Level	PN10 / PN16
Straight pipe section	Front straight pipe ≥5D, rear straight pipe ≥3D
Communication	NB-IoT, 4G, RS485
Power consumption	Static ≤ 100 µA;

III. Product Features:
1. Large Caliber: DN400–DN1000 lithium-battery electromagnetic water meters have very few comparable competitors on the market.
2. Zero-grid deployment: No cable shafts or grid approval required, shortening the construction period and reducing overall costs.
3. Ultra-low power, massive flow rate: Dual-frequency excitation + dynamic sleep mode—allowing the DN1000 model to operate for 6 years without battery replacement.
4. Magnetic Field Immunity: Three-layer magnetic shielding + circuit board protection, offering strong anti-interference capability.
5. Wide range ratio R ≥ 160
IV. Application Scenarios: Empowering the Main Pipeline Network with "Water Meter Thinking"
6. First-Level DMA Manager
DN600-DN1000 zero straight-section installation, accurately capturing the minimum nighttime flow rate, significantly reducing leakage rates.
7. Large-scale Industry / Power Plants / Chemical Industrial Park Trade Settlement
DN400-DN800 bidirectional metering with tamper alarms significantly reduces trade dispute rates.
8. Secondary Water Pump Room
DN400-DN600 inlet and outlet main pipe monitoring, combined with pressure closed-loop control, reduces pump unit energy consumption, and triggers an alarm upon even the slightest leakage.