CM-402 ( Chlorophyll Meter)

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Product Code:403
Brand:Chlorophyll Meter

CM-402


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Introduction

Green element tester can real-time measuring plant chlorophyll relative content or the “green degree” of plant leaf chlorophyll content is an indicator of the status of the plant itself, grew well in the plant’s leaves contain more chlorophyll, chlorophyll content and nitrogen content in the leaves have a close relationship, therefore the chlorophyll measurements can also explain the real demand of nitrocellulose plant, through this kind of instrument is beneficial to reasonable applying nitrogen fertilizer, improve the utilization rate of nitrogen, and can protect the environment (prevents excessive nitrogen fertilizer and make the environment especially the pollution of water source)

Feature

Chlorophyll meter by measuring the leaf in two wavelength range of light transmittance relative quantity to determine the current leaf chlorophyll, which is in the chlorophyll choose two wavelength region absorb certain wavelengths of light, measured value is calculated according to the amount of transmitted light blade

Technical Specification

 

Functional features

Function characteristics measuring time fast
The LCD shows chlorophyll value directly
Small and portable instrument, can carry to the field measurement

Measure Sample

Measuring the sample all kinds of plant leaves

The measurement area

diameter:10mm*10mm

Measuring way

2 wavelength optical concentration difference method

Sensor

silicon semiconductor photoelectric diode

Display measurements

3 digit LCD display

Measurement times

The smallest interval of measurement is less than 2 seconds

measurement range

0.0-99.9 SPAD

Accuracy

+ / – 1.0 SPAD (at room temperature, SPAD value ranges from 0 to 50)

Repeatability

within + / – 0.2 SPAD unit (SPAD value ranges from 0 to 50)

Reproducibility

within + / – 0.5 SPAD unit (SPAD value ranges from 0 to 50)

Operating temperature

0~50℃

Storage temperature

-20~~55℃

Data storage

SD card storage: 2 g

Electrical source

rechargeable lithium batteries

Standby time to charge

normally available for seven days

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