Digital water meter

ultrasonicindustrialsmart

Product Overview
The DN50–DN500 Ultrasonic Water Meter with flanged connection is engineered for large-diameter water flow measurement in municipal, industrial and utility networks. It applies ultrasonic transit-time measurement to determine flow by comparing upstream and downstream signal travel times. With flanged installation and multiple communication interfaces (NB-IoT, CAT.1, RS485, M‑BUS, pulse, 4–20mA, GPRS), the meter integrates into smart water management and remote reading systems.

Key Features

• Large-diameter coverage: DN50 to DN500 for pipelines in utilities and industry.
• Ultrasonic transit-time: Non-intrusive measurement with no moving parts in the measuring section.
• Flanged connection: Robust mounting for large pipelines and low pressure loss.
• Multi-channel measurement: Stable performance with strong interference immunity.
• Wide range ratio: Up to R400/R500 depending on model for low and high flow conditions.
• Bidirectional measurement: Forward and reverse flow detection for network diagnostics.
• Multiple communications: RS485 ModBus, M-BUS, NB-IoT, CAT.1, pulse output, 4–20mA, GPRS.
• Protection and environment: IP68 suitable for indoor/outdoor/underground installations; operating −40°C to +70°C.
• Long battery life: Low-power design with up to 10 years depending on configuration.
• Data retention: Hourly, daily, monthly storage; permanent retention after power loss.

Applications

• Municipal water supply networks
• Large-diameter pipeline flow metering
• Industrial water metering and process monitoring
• District metering area (DMA) monitoring
• Water treatment and distribution plants
• Smart water management and telemetry systems
• Remote billing and consumption monitoring

Technical Specifications (table)
Product Type | Large-diameter ultrasonic water meter
Nominal Diameter | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN400, DN500
Measurement Principle | Ultrasonic transit-time measurement
Connection | Flanged connection
Maximum Working Pressure | 1.6 MPa
Temperature Class | T30, T50; optional T70, T90
Accuracy Class | Class 2; Class 1 optional
Material | SS304 standard; SS316 or SS316L optional
Battery Life | Up to 10 years (configuration dependent)
Protection Class | IP68
Operating Environment | -40°C to +70°C, ≤100% RH
Pressure Loss | ΔP0, ΔP16, ΔP25 depending on flow configuration
Electromagnetic Environment Class | E2
Communication Options | RS485 ModBus, M-BUS, NB-IoT, CAT.1, pulse output, 4–20mA, GPRS
Display | 9-digit dual-line LCD with status indicators
Display Content | Accumulated flow, instantaneous flow, pressure, battery alarm, flow direction, output mode
Measurement Frequency | 1–4 Hz adaptive
Data Storage | 7×24h recent, 750 days, 72 months; data retained after power loss
Flow Profile Sensitivity | U5/D3 or U0/D0
Range Ratio | R400 / R500 depending on model configuration

Nominal Diameter and Flow Range (table)
Nominal Diameter | Common Flow Q3 | Overload Flow Q4 | Range Ratio
DN50 | 40 m³/h | 50 m³/h | R500
DN65 | 63 m³/h | 78.75 m³/h | R500
DN80 | 63 m³/h | 78.75 m³/h | R500
DN100 | 100 m³/h | 125 m³/h | R500
DN125 | 160 m³/h | 200 m³/h | R500
DN150 | 250 m³/h | 312.5 m³/h | R500
DN200 | 400 m³/h | 500 m³/h | R500
DN250 | 1000 m³/h | 1250 m³/h | R500
DN300 | 1000 m³/h | 1250 m³/h | R500
DN400 | 1600 m³/h | 2000 m³/h | R500
DN500 | 2500 m³/h | 3125 m³/h | R500

Dimensions (table)
Nominal Diameter | Length L | Width B | Height H | Flange Hole | Flange PCD K | Pressure
DN50 | 200 mm | 165 mm | 257 mm | 18 × 4 | 125 mm | 1.6 MPa
DN65 | 200 mm | 177 mm | 277 mm | 18 × 4 | 145 mm | 1.6 MPa
DN80 | 225 mm | 200 mm | 297 mm | 18 × 8 | 160 mm | 1.6 MPa
DN100 | 250 mm | 220 mm | 314 mm | 18 × 8 | 180 mm | 1.6 MPa
DN150 | 300 mm | 285 mm | 373 mm | 22 × 8 | 240 mm | 1.6 MPa
DN200 | 350 mm | 340 mm | 431 mm | 22 × 8 | 295 mm | 1.6 MPa
DN250 | 450 mm | 395 mm | 500 mm | 22 × 12 | 350 mm | 1.6 MPa
DN300 | 500 mm | 445 mm | 552 mm | 22 × 12 | 400 mm | 1.6 MPa

Why Choose This Ultrasonic Meter?
This flanged large-diameter ultrasonic meter delivers accurate high-flow measurement with low pressure loss, IP68 protection, extensive data storage and multiple remote communication options—making it suitable for utilities and industrial users requiring reliable large-pipe metering and smart network integration.

Technical Specifications — Summary

• Product Type: Large-diameter ultrasonic water meter
• Nominal Diameters: DN50 to DN500
• Measurement Principle: Ultrasonic transit-time
• Connection: Flanged
• Max Working Pressure: 1.6 MPa
• Temperature Classes: T30, T50 (optional T70, T90)
• Accuracy: Class 2 (Class 1 optional)
• Material: SS304 standard; SS316 / SS316L optional
• Battery Life: Up to 10 years
• Protection: IP68
• Communication: RS485, M-BUS, NB-IoT, CAT.1, pulse, 4–20mA, GPRS
• Display: 9-digit dual-line LCD
• Data Storage: Hourly/daily/monthly; retained after power loss