Chlorophyll Meter

Description :

Introduction

Non-destructive measurement of plant chlorophyll

The DCH-52P enables quick, easy measurement of the chlorophyll content of plant leaves without damaging the leaf. Chlorophyll content is one indicator of plant health, and can be used to optimize the timing and quantity of applying additional fertilizer to provide larger crop yields of higher quality with lower environmental load.

Features

Quick, easy measurement of chlorophyll levels in plant leaves without damaging the leaf

Measurements are taken by just closing the measuring head on the leaf. Since the leaf is not cut off or damaged in any other way, the same leaf can be measured as the plant grows.

Trend graph display

Up to 30 measurements can be stored in memory and displayed on a trend graph, so that changes in measurements over time can be seen and abnormal values can be noticed at a glance.

Water-resistant

The DCH-52P is water-resistant (IPX-4) so it can be used outdoors even in the rain.

* It is not immersible, and should not be washed with water.

Compact and lightweight for portability

The DCH-52P is small enough to fit in a pocket and weighs only 200g, so it can be taken anywhere.

Low power consumption

The DCH-52P uses LED light sources, resulting in extremely low power consumption, with approximately 20,000 measurements from one set of fresh alkaline-manganese batteries.

Principal Applications

Monitoring of growth and health of plants

The DCH-52P can be used to monitor the growth and health status of a wide variety of agricultural products, including wheat, rice, corn, cotton, etc.

Nitrogen fertilization optimization

The DCH-52P can be used for determining when and how much nitrogen fertilizer should be provided to plants. Optimizing fertilization in this way leads to not only greater yields of higher quality, but also results in less over-fertilization, reducing environmental contamination due to the leaching of excess fertilizer into the soil and underground water.

specification :

Measurement subject                                                   

Crop leaves

Measurement method                                                   

Optical density difference at 2 wavelengths

Measurement area                                                         

2 mm × 3 mm

Subject thickness                                                             

1.2 mm maximum

Subject insertion depth                                                  

12 mm (with stopper having position adjustable from 0 to 6 mm)

Light source                                                                     

2 LED elements

Receptor                                                                           

1 SPD (silicon photodiode)

Display                                                                               

LCD panel showing 4-digit measurement value (values shown to first  decimal place) and 2-digit number of measurements; Trend graph of  values in memory can also be shown.

Display range                                                                     

-9.9 to 199.9  DCH-52P units

Memory function                                                               

Memory capacity for up to 30 values; Calculation/display of average of data in memory also possible

Power source                                                                        

2 AA-size alkaline batteries

Battery life                                                                            

More than 20,000 measurements.

Minimum interval between measurements                      

Approx. 2 seconds

Accuracy                                                                               

Within ±1.0  DCH-52P units (for  DCH-52P units  value between 0.0 and 50.0 under normal temperature/humidity) “*” added to display when measurement exceeds 50.0  DCH-52P units

Repeatability                                                                         

Within ±0.3  DCH-52P units

Reproducibility                                                                      

Within ±0.5  DCH-52P units

Temperature drift                                                                  

Within ±0.04  DCH-52P unit /°C

Operating temperature/humidity range                             

0 to 50°C; Relative humidity of 85% or less (at 35°C) with no condensation

Storage temperature/humidity range                                

-20 to 55°C; Relative humidity of 85% or less (at 35°C) with no   condensation

Size; Weight                                                                            

78(W)×164(H)×49(D)mm、200g (excluding batteries)

Other                                                                                        

Warning buzzer; User compensation factor

Standard accessories                                                              

Depth stop; Strap; 2 AA-size alkaline batteries; Soft case; Reading checker

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