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Axioma Qalcosonic W1 - Ultrasonic Water Meter
QALCOSONIC W1 is a modern ultrasonic water meter for precise measurement of cold water consumption in households, apartment buildings and small commercial facilities.
Key specifications
Accuracy
±2% (Q2-Q3), ±5% (Q1)
Size
DN15, G3/4" thread
Battery
16 years
Connectivity
LoRa, Wireless M-Bus, NFC
Main features
Ultrasonic measurement method with no moving parts
Sensitive measurement from 1 l/h, Q3 flow rate 2.5 m³/h
Horizontal or vertical mounting flexibility
9-digit LCD display with volume and flow indication
IoT ready - AMR, NFC, LoRa (868 MHz)
Certifications
MIDOIML R49LoRaWANWRASACS
Premium
Technical Specifications
| Nominal Flow Q3 | 1.6 / 2.5 / 4.0 m³/h |
| Dynamic Range R | 80 / 160 / 250 / 315 / 400 / 500 / 800 |
| Water Temperature | 0.1 - 90°C |
| Display Type | 9-digit LCD display |
| Protection Class | IP68 |
| Ambient Class | Class C / EN 14 154 |
| Ambient Temperature | -15°C to +70°C |
| Installation Position | All installation positions (vertically, horizontally, diagonally) |
| Nominal Pressure | PN16 bar |
| Pressure Loss | 0.16 / 0.25 / 0.40 bar |
| Battery Lifetime | Up to 16 years LoRa/wM-Bus version, up to 13 years NB-IoT version |
| Units | m³ - m³/h |
| Flow Measurement | Bi-directional flow measurement |
Flow Range Table by Dynamic Range
| Nominal flow rate Q3, m³/h | 1,6 | 2,5 | 4,0 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall length, mm | 80, 110, 115, 165, 170 | 80, 110, 115, 165, 170 | 105, 110, 130, 165, 190 | ||||||||||
| Nominal diameter | DN15 | DN15 | DN20 | ||||||||||
| Connection | G ¾" | G ¾" | G 1" | ||||||||||
| Dynamic range R, Q3/Q1 | 80 | 160 | 250 | 315 | 80 | 160 | 250 | 400 | 500 | 80 | 160 | 250 | 400 |
| Minimum flow rate Q1, m³/h | 0,020 | 0,010 | 0,0064 | 0,005 | 0,031 | 0,0156 | 0,010 | 0,0062 | 0,005 | 0,050 | 0,025 | 0,016 | 0,010 |
| Transitional flow rate Q2, m³/h | 0,032 | 0,016 | 0,010 | 0,008 | 0,050 | 0,025 | 0,016 | 0,010 | 0,008 | 0,080 | 0,040 | 0,026 | 0,016 |
| Starting flow rate, m³/h | 0,001 | 0,001 | 0,002 | ||||||||||
| Maximum flow rate Q4, m³/h | 2,0 | 3,125 | 5,0 | ||||||||||
| Pressure loss class Δp, bar x 100* | Δp16 | Δp25 | Δp25 | ||||||||||
* - for direct flow, without optional strainer