ZWR Weighing Rain Gauge
ZWR
The ZWR is a weighing rain gauge that measures rainfall intensity and evaporation using a weighing sensing principle over a range of 0-1000 mm, with automatic inverted-siphon drainage. It is supplied in the UK by MetSensor UK.
- ✓ Weighing principle measures rainfall directly by mass, not tip count
- ✓ Measurement range 0-1000 mm at 0.1 mm resolution
- ✓ Rain intensity coverage 6-1800 mm/h
- ✓ Inverted siphon automatic drainage
- ✓ Optional heating function
- ✓ RS485/RS232 standard, WiFi, Bluetooth, LTE optional
Specifications
| Measuring principle | Weighing |
|---|---|
| Measuring range | 0-1000 mm |
| Measuring resolution | 0.1 mm |
| Measuring accuracy | ±0.2 mm (≤10mm); ±2% (>10mm) |
| Operating temperature | -40 to 60°C |
| Power supply | 9-16 VDC |
| Output type | RS485/RS232 |
| Rain intensity coverage | 6-1800 mm/h |
| Heating function | Optional |
| Interface options | RS485, RS232, WiFi, Bluetooth, LTE |
| Drainage | Inverted siphon automatic drainage |
| Operation Temperature | -40-60°C |
| Monitoring Principle (as labeled on page) | Piezoelectric type |
| Interface | RS485/RS232/Wifi/BT/LTE |
Applications
- Meteorological monitoring
- Hydrological monitoring
- Transportation
- Power systems
- Scientific research
Frequently asked questions
How is a weighing rain gauge different from a tipping bucket gauge?+
A weighing rain gauge measures the mass of collected precipitation continuously, which allows it to capture light drizzle, snow and evaporation that a tipping bucket mechanism can miss between tips.
What is the measurement range of the ZWR?+
0-1000 mm at 0.1 mm resolution.
What rain intensity range can the ZWR handle?+
6-1800 mm/h.
How does the ZWR drain collected water?+
Via an automatic inverted-siphon mechanism.
