Leaf Temperature and Humidity Sensor

LEAF HUMIDITY SENSOR

RY-CYM/485

MANUAL

INTRODUCTION & PRINCIPLE

When the leaf surface has a certain amount of water vapor, the leaf surface is easily infected by some fungal and bacterial diseases. The foliar humidity sensor can measure the presence and duration of foliar humidity, so that researchers or producers can predict the occurrence of diseases and take relevant protective measures for plants or crops.

The leaf surface temperature and humidity sensor can accurately measure the leaf surface humidity, and can detect the trace moisture or ice crystal residue on the leaf surface. The shape of the sensor is imitation blade design, which truly simulates the characteristics of the page, so it can more accurately reflect the condition of the leaf surface environment. It measures the presence of water or ice by changing the dielectric constant of the upper surface of the blade medium. Low power consumption for long-term continuous monitoring. It is easy to install and can be hung on the greenhouse or the mast of a weather station.

TECHNICAL SPECIFICATION

◆Measuring range：Leaf temperature -20~80℃ Leaf humidity 0~100%

◆Respond time：＜1s

◆Accuracy：±1℃（25℃）；±5%（25℃）

◆Output signal：RS485modbus

◆Working voltage：DC9~24V

◆Working current：17ma（DC12V）

◆Power Consumption：DC12V <=0.22W

◆Standard line length：1.5米

◆Stability time: about 10 seconds after power on

◆Output lead: Recommended <500m

◆Ingress Protection：IP65

WIRING METHOD

output sensor is equipped with a 1.5m four core cable as standard. The cable specification is 0.2mm² Four core shielded cable. The wiring color is defined as: