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GWF Sonico Edge

Static Water Meter

4D technology® measures best in class high and low flows (DN50: Start flow 0.005 m3/h, >90 m3/h). Immediate detection of leakages and network errors, suitable for fire flow.

Maximum installation flexibility. Reliable measurements over the full flow range, independent of installation conditions. No straight runs needed even with 90° elbows, valves or pumps.

Accuracy by design: 4D technology® maximizes turndown ratio to R1000. Highest accuracy across the entire flow profile leads to a cutting edge dynamic range.

Homogeneous 4D-shape measuring pipe with dry sensors and no obstacles or cavities. Minimal pressure loss enhances high flow capability and minimizes operating costs. Dry sensors lead to increased meter lifetime, reliability and dirt resistance.

Three independent NFC communication slots for local area and wide area connectivity. Various communication standards supported.

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PROPERTIES

  • Very low starting flow: 5 l/h
  • Highest measuring range: R1000
  • Volume resolution: 0.1 l/h
  • Low-pressure loss: <0.09 bar
  • 4 Hz measuring sampling rate in test and operation mode
  • Homogeneous measuring channel
  • Dry sensors without any sensor pockets
  • No flow straightener
  • Can be installed in all directions and mounting positions
  • Can be installed directly after 90° bends, valves and pumps
  • Automatic detection of flow direction
  • IP68
  • Approved firmware security and update procedure according to WELMEC 7.2 European Legal Metrology
  • 3 x independent NFC communication interfaces for local and wide area connectivity
  • Water measurement, e.g. potable and wastewater
  • Utility water e.g.reservoirs and pumping stations, etc.
  • Industrial applications e.g process control and measurements

Nominal Flow Rate DN mm 50 80 100 150 200 300
Q3/Q1 – – 1000 1000 1000 1000 1000 1000
Nominal Pressure PN bar 16 16 16 16 16 16
Nominal Flow Rate ± 2 % Q3
V3		 m3/hr
m/s		 40
57		 100
5.5		 160
5.7		 400
6.3		 630
5.6		 1000
3.9
Overload Flow Rate Qmax
Vmax		 m3/hr
m/s		 90
12.7		 200
11.1		 300
10.6		 600
9.4		 1100
9.7		 1500
5.9
Maximal Flow Rate Q4
V4		 m3/hr
m/s		 50
7.1		 125
6.9		 200
7.1		 500
7.9		 788
7.0		 1250
4.9
Starting Flow Rate Qstart
Vstart		 l/hr
m/s		 25
0.0035		 50
0.0014		 80
0.0014		 200
0.0016		 300
0.0027		 600
0.0020
Minimum Flow Rate ± 5% Q1
V1		 m3/hr
m/s		 0.04
0.0057		 0.10
0.0055		 0.16
0.0057		 0.40
0.0063		 0.63
0.0056		 1
0.0039
Transitional Flow Rate ± 5% Q2
V2		 m3/hr
m/s		 0.06
0.0091		 0.16
0.0088		 0.26
0.0091		 0.64
0.0101		 1.01
0.0089		 1.60
0.0063
Maximum water temperature T °C 50 50 50 50 30 30

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