Description

DIK-0450 : Soil Respiration System with Datalogger and GPS

Soil respiration is a key ecosystem process that releases carbon from the soil in the form of CO2. CO2 is acquired from the atmosphere and converted into organic compounds in the process of photosynthesis. Plants use these organic compounds to build structural components or respire them to release energy. When plant respiration occurs below-ground in the roots, it adds to soil respiration.

DIK-0450 Soil Respiration System anyone is easily possible to measure CO2 in soil with just putting this device on the ground. From the short-term to long-term measurement is widely applicable. It is designed to measure four element, Soil CO2, Temperature, Humidity and Atmospheric pressure.

Soil CO2 datalogger enable to record measurement data, A fan and the open/close valves are automatically controlled according to the measurement. Under measurement air is shut and circulated inside chamber by a fan. After measurement, air is ventilated through inside and outside with opening a valve.

Datalogger with built-in GPS can acquire position information at the same time.

By connection an optional chamber under the measurement chamber, it is possible to observe the plant assimilation and also the breathing outbreak gas measurement of small animal.

 

Features:-
 

• This equipment possible to measure Soil CO2, Temperature, Humidity, Barometric pressure.
• It is best for on-site measure of soil respiration.
• Measurement control datalogger records valuable data.
• Large data storage in 2 GB Micro SD cards.
• Digital Datalogger with GPS records valuable data and pinpoint location at the same time.
• Continues use 8 hours in field without battery charge.
• Easy to use & one person can handle

 

CO2 chamber Components:-

Inlet port : The servo motor opens and closes the inlet port.

Exhaust port : The servo motor opens and closes the exhaust port.

Circulation port : The servo motor opens and closes the circulation port.

Circulating fan : Circulates air through the chamber while the background or soil CO2 is being measured.

Sensors : Used to measure CO2 concentration, atmospheric pressure, temperature and humidity. 

                                     

                                              Technical Specifications

CO2 Sensor

Measurement method : Non-Dispersive Infrared absorption (NDIR)

CO2 Measurement range : 0 to 4000 ppm

Resolution : 1 ppm

Response time : 20 seconds

Measurement interval : 2 seconds

Operating temperature range : 0 to 50°C

Operating humidity range : 0 to 95% (no condensation)

Power supply : 12 VDC

 

Atmospheric Pressure Sensor

Measurement range : 500 to 1100hPa

Resolution: 15Pa

 

Temperature Sensor

Measurement range : −40 to 60°C

Resolution : 0.1°C

 

Humidity Sensor

Measurement range : 0 to 100%

Resolution : 1%

 

CO2  Chamber

Material : Exterior: Acrylic, transparent PVC, POM, Bracket and others: SUS

External dimensions : Placement area of ground: Outside diameter of 216 mm, Inside diameter of 200 mm

                                   Total height: 400 mm (chamber 300 mm, handle 100 mm)

                                   Max. outside diameter: 260 mm Chamber capacity: 6.25 L

 

Circulating fan : Max. air flow of 0.09 m3/min, Max. static pressure of 110 Pa, Rotation speed of 4500 rpm

Vent valve : 3 programmable control valves (DC servo motor driven)

 

Data logger

Analog input : Channel 1, CO2 concentration

                       Channel 2, Atmospheric pressure

                       Channel 3, Temperature

                       Channel 4, Humidity

 

Display : LCD (4 lines x 20 characters)

Language : English

Backlight : Remains lit for about 5 seconds when the "L" key is pressed

Data storage device : microSD card (2 GB)

Data Storage Capacity : over 500000 Data

GPS Measurement System : WGS-84

Power supply : AC adapter, DC input (12 VDC battery)

Backup power : 4 AA batteries for momentary power interruptions

Power consumption : Max. 500 mA (sleep mode: 5 mA or less)