Fruit and vegetable respiration meter

 Instrument Usage

The harvested fruits and vegetables are still independent living organisms, and in order to maintain life, respiration is necessary. Respiratory function is the main physiological metabolic mode of horticultural products such as fruits and vegetables after harvesting. Respiratory intensity is an indicator of the strength of respiratory function and an important indicator that must be mastered in studying the physiological changes and storage, transportation, and preservation of fruits and vegetables after harvesting.

The fruit and vegetable breathing apparatus adopts a dual wavelength infrared carbon dioxide analyzer and a 7-inch Android display, specifically used for measuring and analyzing the respiratory intensity of fruits and vegetables under storage conditions such as room temperature, cold storage, controlled atmosphere storage, and supermarket refrigerators.

The characteristic of this instrument is that it can select different volumes of breathing chambers according to the size of fruits and vegetables, which accelerates balance and measurement time; It can directly display the CO2 concentration, O2 concentration, temperature and humidity, as well as the change curve of the breathing chamber.

 Instrument features:

1. Android operating system, more convenient human-computer interaction operation

2. 7-inch high-definition touch screen, simple operation and clear interface;

3. The gas flow rate can be directly set by the instrument to conduct experiments on the respiratory intensity of fruits and vegetables under different flow rates;

4. Specialized dynamic analysis software that can display the experimental process in real-time on the Android display screen, eliminating the need to copy data to the computer and organize analysis;

5. You can input elements such as the type, name, weight, place of origin, and harvesting date of the experimental fruits or vegetables;

6. 16GB storage space, capable of storing over 100000 pieces of data;

7. The data can be directly exported to a USB drive through a USB interface;

Technical indicators

1. Carbon dioxide

Detection principle: Non dispersive infrared method

Sensitivity: Carbon dioxide difference collection can be completed within 1 second.

Measurement range: 0-5000ppm

Accuracy: 3ppm

Resolution: 0.1ppm

2. Oxygen detection

Detection principle: electrochemical method

Measurement range: 0-****

Linearity: ≤ ± 2% F.S

Repeatability: ≤ ± 1%

Response time: 30s

Zero drift: ≤ ± 2% F.S/24h

End point drift: ≤ ± 2% F.S/24 hours

3. Temperature detection

Measurement range: -20-95 ℃

Resolution: 0.1 ℃

Accuracy: ± 0.2 ℃

4. Humidity detection

Measurement range: 0-****

Resolution: 0.1%

Accuracy: ± 0.2% F.S

5. Power supply voltage: 12V3A power adapter

4、 Respiratory chamber parameters

1. The net space with an inner diameter of 40mm is 80mm, and the volume is 0.1 liters

2. The net space with an inner diameter of 60mm is 89mm, and the volume is 0.25 liters

3. The net space with an inner diameter of 120mm is 180mm, and the volume is 2 liters

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