Photosynthetically Active Radiation Sensor

PHOTOSYNTHETICALLY EFFECTIVE RADIATION SENSOR

RY-GH

MANUAL

INTRODUCTION

The photosynthetically effective radiation sensor is mainly used to measure the photosynthetically effective radiation of natural light in the wavelength range of 400-700nm, and is simple to use. It can be directly connected to a digital voltmeter or a data collector and can be used under all weather conditions.

The meter uses a silicon photodetector and passes through a 400-700nm optical filter. When there is light, a voltage signal is generated that is proportional to the intensity of the incident radiation, and its sensitivity is proportional to the cosine of the direct angle of the incident light. μ • mol / m² • s.

This table is widely used in agricultural meteorology and crop growth research.

TECHNICAL SPECIFICATION

●Spectral range: 400-700nm

●Sensitivity: 7-70μv / μ • mol • m² • s

●Response time: <1s (99%)

●Temperature related: maximum 0.05% / ℃

●Cosine correction: up to 80 ° incident angle

●Internal resistance: <2K

●Working environment: temperature -40—65 ℃, humidity <90%

●Output: 200mv of original output

●Wiring: Red + White-

●RY-GH + RY-ST: Transmission output RS485 / 4-20MA

●Range: 0-4000μ • mol • m² • s

●Wiring: red + black-yellow ma output (current type)

●Wiring: Red + Black-Yellow A Blue B (Type 485)

●Standard wiring length: 1.5 meters

●Farthest lead length: 200m for current, 100m for RS485, 50m for voltage

WIRING METHOD

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