WSS-21 -- Rain Gauge
1. Introduction
WSS-21 RS485 Rain Gauge is used in meteorology and hydrology to gather and measure the amount of liquid precipitation (mainly rainfall) over an area.
WSS-21 uses a tipping bucket to detect rainfall. The tipping bucket use 3D streamline shape to make sure it works smoothly and is easy to clean.
The tipping bucket of WSS-01 is adjusted to the best angle. When installation, user only needs to screw up and adjust the bottom horizontally.
WSS-21 package includes screw which can be installed to ground. If user want to install WSS-21 on pole, they can purchase WS-K2 bracket kit.
1.1 Feature
- RS485 Rain Gauge
- Small dimension, easy to install
- Vents under funnel, avoid leaf or other things to avoid rain flow.
- ABS enclosure.
- Horizontal adjustable.
1.2 Specification
- Resolution: 0.2mm
- Accuracy: ±3%
- Rainfall strength: 0mm ~ 4mm/min (max 8mm/min)
- Input Power: DC 5 ~ 24v
- Interface: RS485
- Default Baud Rate (with WSC2-L host): 4800
- Working Temperature: 0℃ ~ 70℃ (incorrect below 0 degree, because water become ICE)
- Working Humidity: <100% (no dewing)
- Power Consumption: 4mA @ 12v.
1.3 Wiring
1.4 Dimension
1.5 Installation Notice
Do not power on while connect the cables. Double check the wiring before power on.
Installation Photo as reference:
Install on Ground:
WSS-21 Rain Gauge include screws so can install in ground directly .
Install on pole:
If user want to install on pole, they can purchase the WS-K2 : Bracket Kit for Pole installation, and install as below:
WS-K2: Bracket Kit for Pole installation
WS-K2 dimension document, please see:
1.6 RS485 Commands
The RS485 command is as follows: Weather_Sensors_Modbus_Command_List