The Role of 1. in Grain Storage in Granary

Monitor oxygen concentration:

Real-time accurate monitoring of oxygen concentration in the granary, to provide data basis for the amount and time of nitrogen filling. The staff can accurately control the filling of nitrogen according to the feedback information from the sensor, so that the oxygen concentration in the granary is stable within the appropriate range of inhibiting the reproduction of pests and the respiration of food. Usually, the oxygen concentration is controlled at a lower level, which can effectively delay the decline of food quality.

Nitrogen leak alarm:

Continuously monitor the changes of oxygen concentration in the granary, and when the oxygen concentration rises abnormally, it can send out early warning signals in time. This helps the staff to find out the possible problems in the granary in time, such as air tightness damage, nitrogen leakage, etc., so as to take corresponding measures to ensure the safety of food storage.

2. installation and maintenance

Installation location:

Usually installed in different parts of the granary, such as the top of the grain pile, wall corners, etc., in order to fully monitor the distribution of oxygen concentration in the granary. At the same time, it is necessary to avoid installation near the nitrogen filling inlet or vent, so as not to affect the measurement accuracy.

Periodic calibration:

In order to ensure the measurement accuracy of the sensor, it is necessary to calibrate regularly. The standard gas can be used for calibration according to the recommendations of the sensor manufacturer. The calibration period is generally half a year or one year.

Routine maintenance:

Regularly check the appearance of the sensor for damage, corrosion, etc., and clean the dust and debris on the surface of the sensor to ensure its normal operation. At the same time, check whether the connection line and power supply of the sensor are normal, and repair or replace in time if there is any problem.

Here, recommend to everyone1paragraph detection of oxygen sensor:SO-B0-001。

This sensor is AustriaSENSORA gas sensor developed specifically for the detection of micro amounts of oxygen.

1.SO-B0-001Parameters of the sensor

Temperature:

This Austrian limiting current oxygen sensor can be used in high and low temperature environments in the granary with the highest temperature range-20℃~+350℃

Range:0.001%-0.1%, I .e.10ppm-1000ppmDo not power up in the air and outside the range.

Input:3.8±0.05VDC

Output: 70-140uA(400 ppm O2, remaining N2)

2.GSBParameters of the board

Input:

collocationGSBboard, a complete set of models namedEGa0202std-B0001

Output:

Analog voltage:0-5V

Analog current:4-20mA

Digital signal:RS232

3. self-built amplifier circuit

        GSBBoard reference circuit

Other simple reference circuits