Sentec SEM226O SEM2260 Optical Rain Gauge RS485

1. Product Introduction
1.1 Product Overview
SEM226O This product is an optical rain sensor, which is a product for measuring rainfall. It uses optical sensing principle to measure rainfall internally. It has multiple built-in optical probes, and the rainfall detection is reliable. Different from the traditional mechanical rain sensor, the optical rain sensor is smaller in size. More sensitive and reliable, more intelligent and easy to maintain.

1.2 Features
Small size, light weight and easy installation
Low power consumption design, save energy
High reability, can work normally in high temperature and high humidity environment
Easy maintenance design, not easy to be blocked by fallen leaves
Rainfall is optically measured, and the measurement is accurate
High-precision illuminance detection and measurement range of 0-100,000 Lux
Dry contact pulse output of RS485 signal output, long communication distance and stable communication

1.3 Main Technical Indicators
Rain-sensing diameter : 6CM
Supply voltage : 9~30V DC
Power consumption : Less than 0.24W
Resolution :
- Rainfall : standard 0.1mm
- Illumination : 1Lux
Precision :
- Rainfall : ±5%
- Illumination : ±7%(25C)
Maximum instantaneous rainfall : 24mm/min
Light intensity range : 0-20 Lux
Output method : dry contact pulse output, RS485 output
Operating temperature : -40~60C
Working humidity : 0~99%RH (no condensation)
Working pressure range : standard atmospheric pressure ±10%
Long term stability : illumination ≤5%/y
Dry contact withstand voltage : ≤30VDC
Dry contact withstand current : ≤1A