SY-S02Plant chlorophyll meter

Instrument Introduction

SY-S02Plant chlorophyll meter can measure the chlorophyll content (unit SPAD ) Or 'Green level ' So you can see plants real Nitro demand and help you understand the lack of soil Nitro or whether it imposes too much nitrogen fertilizer. You can use this instrument to increase the utilization of nitrogen fertilizer and the protection of the environment (to prevent too much nitrogen fertilizer and pollution to the environment, especially water).

Working principle

Two LED Light two lights, one red light (650nm)One is infrared light (940nm)Two leaves of light to pass through, hit on the receiver, the light signal into an analog signal, analog amplifiers, analog /Digital converter converts digital signals, microprocessor digital signal processing, calculate SPAD Value and displays on the LCD.

(1) Chlorophyll meter calibration of measurement and calculation of two LED Order light, convert light into electrical signals received, the ratio of light intensity is used to calculate.
(2) In the head after a sample is clamped, two LED Once again shine of light transmitted through the blade on to the receiver, is converted into an electrical signal, transmitted light intensity ratios are computed.

(3) Procedure 1And 2Values are used in calculating SPAD Measured value, that means holding samples of leaf chlorophyll relative content in the current.

Technical specifications

Measuring range 0.0-100 SPAD

Measuring area 2mm*3mm

Measurement accuracy ±1.0 SPAD Within the unit (0.0-50.0 SPAD At room temperature and humidity)

Repeatability ±0.3 SPAD Within the unit (0.0-50.0 SPAD Measuring position unchanged)

Measurement intervals Is less than 3Second

Data storage media SD Card storage

Data storage capacity 2GB

Power supply 4.2VRechargeable lithium-ion battery

Battery capacity 800mah

Weight 260g

Overall dimensions 140×85×45mm(Long ×Wide ×High)

Working and storage environment 0℃-50℃; 85%Relative humidity