Digital water meter

ultrasonicresidentialsmart

Product Overview
The ultrasonic water meter DN15–DN40 is designed for accurate metering in residential, commercial and municipal smart water networks. It uses the ultrasonic transit-time principle in a straight-through flow channel with no mechanical moving parts in the measuring section, reducing wear, pressure loss and maintenance. Multiple communication options (NB‑IoT, CAT.1, RS485, M‑BUS) enable remote reading, automatic reporting and integration with water management platforms.

Key Features

• Ultrasonic transit-time measurement: High-stability flow measurement by comparing upstream and downstream ultrasonic travel times.
• Smart communications: NB‑IoT, CAT.1, RS485 and M‑BUS for remote reading and data collection.
• Size range: DN15, DN20, DN25, DN32, DN40 to suit common pipe installations.
• Accuracy and bidirectional measurement: Accuracy class 2 with reverse-flow detection.
• Low power: Static current ≤30 μA, battery life >6 years.
• Protection: IP68 rating for humid or exposed metering sites.
• Straight-through design: No impeller — reduced risk of blockage and lower pressure loss.
• Flexible installation: Supports horizontal or vertical mounting.
• Event detection: Optional alarms for leakage, pipe burst, scaling and battery issues.
• Data storage: Daily/monthly totals, instantaneous flow, temperature warnings and pressure fluctuation records.

Applications

• Residential smart water metering
• Apartment and community water management
• Commercial building water measurement
• Municipal water supply networks
• Remote billing and monitoring systems
• Leak detection and abnormal usage alerts

Technical Specifications
Product type: Ultrasonic smart water meter
Nominal diameters: DN15, DN20, DN25, DN32, DN40
Communication: NB‑IoT, CAT.1, RS485, M‑BUS
Measurement principle: Ultrasonic transit-time
Accumulated volume resolution: 0.000001 m³
Current flow resolution: 0.000001 m³/h
Static current: ≤30 μA
Battery life: >6 years
Display: 8-digit LCD
Temperature class: T30 / T50
Pressure class: MAP16
Pressure loss class: Δp25 / Δp40
Protection class: IP68
Accuracy class: Class 2
Electromagnetic environment class: E2
Installation: Horizontal or vertical
Flow profile sensitivity: U5/D3 or U0/D0
Reverse flow: Measurable
Optional functions: Leakage detection, pipe burst alarm, scaling detection and alarm

Dimensions
DN15 — Length L: 165 mm; Width W: 103 mm; Height H: 155 mm; Weight: 1.0 kg; Meter thread: G3/4B; Pipe connector thread: R1/2
DN20 — Length L: 195 mm; Width W: 103 mm; Height H: 164 mm; Weight: 1.2 kg; Meter thread: G1B; Pipe connector thread: R3/4
DN25 — Length L: 225 mm; Width W: 103 mm; Height H: 171 mm; Weight: 1.5 kg; Meter thread: G1 1/4B; Pipe connector thread: R1
DN32 — Length L: 230 mm; Width W: 103 mm; Height H: 180 mm; Weight: 1.8 kg; Meter thread: G1 1/2B; Pipe connector thread: R1 1/4
DN40 — Length L: 300 mm; Width W: 103 mm; Height H: 189 mm; Weight: 2.1 kg; Meter thread: G2B; Pipe connector thread: R1 1/2