Japan, Kyowa Electronic Instruments Co., Ltd.
Kyowa LWF-A Water Leakage Meter
Made in Japan
Manufacturer: Kyowa Electronic Instruments Co., Ltd.
Model: LWF-A
It is possible to remotely measure the amount of water leaking from the embankment body, the ground, etc. The amount of water leaking from the embankment body, the ground, etc. can be measured remotely.The leakage water is collected in a channel and poured into a triangular weir, and the change in water head caused by the weir is measured by buoyant load. This is a measuring water level gauge that detects and measures the amount of water leakage using a water level gauge. The electrical output signal of the water level gauge is transmitted by cable, so remote measurement is possible, and automatic measurement is also possible when combined with a recorder.
composition
Measurement waterway triangular weir water level gauge LWF-A-300S
Measurement channel triangular weir specifications
| measurement waterway | Acute angle 60° or 90° triangular weir (manufactured upon request) JIS compliant |
|---|---|
| Weir width and flow rate of triangular weir | Angle 60°, Width 45cm, Flow rate 18-260L/min Angle 90°, Width 60cm, Flow rate 110-1500L/min Angle 90°, Width 80cm, Flow rate 110-2900L/min |
Water level gauge LWF-A-300S Specifications
Performance
| Rated capacity | water level 300mm |
|---|---|
| non-linearity | Within ±0.5% RO |
| hysteresis | Within ±0.5% RO |
| Rated output | 1.2mV/V (2400×10-6 strain ) ±10% |
Environmental characteristics
| Allowable temperature range | -10 to 40°C (do not freeze) |
|---|---|
| Temperature effect on zero | Within ±0.03% RO/°C |
Electrical characteristics
| input resistance | 350Ω±2% |
|---|---|
| output resistance | 350Ω±2% |
| cable | 0.5mm 2 , 4-core shielded chloroprene 3m, outer diameter 10mm, bare tip |
Mechanical properties
| Allowable overload | 120% |
|---|---|
| Protection class | IP67 (JIS C 0920) |
| mass | Water leakage detector about 17kg |
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