1. What is a nitrogen room

In modern industrial production, nitrogen sealed room as a special production environment, its safety is very important. Nitrogen-sealed rooms are usually filled with nitrogen to replace oxygen in the air to prevent oxidation and protect product quality.

Why monitor nitrogen?

The fluctuation of oxygen concentration in the nitrogen-sealed room may bring serious safety hazards. Too low oxygen concentration may lead to asphyxia of workers, while too high oxygen concentration may destroy the nitrogen sealing effect and affect product quality.

3. How to monitor nitrogen

Because nitrogen is an inert gas, there is no nitrogen sensor on the market, and the general monitoring methods do not respond. Basically, they are oxygen alarms that measure oxygen concentration. Nitrogen measurement indirectly reflects nitrogen content by measuring oxygen content.

When the sensor detects that the oxygen concentration deviates from the preset range, the control system will automatically start the corresponding adjustment measures, such as adjusting the nitrogen charge, turning on the ventilation equipment, etc., to restore the gas balance in the workshop. This intelligent control not only improves the production efficiency, but also reduces the error and risk of human intervention, which provides a strong guarantee for the safe production of nitrogen sealing workshop.

Here, to recommend you a detection of oxygen sensorSO-D0-250This sensor is Austria.SensorLimiting current oxygen sensor specially developed for detecting oxygen.

1. oxygen sensorSO-D0-250Working principle

Because the carrier of the current in the zirconia electrolyte is oxygen ions, when a voltage is applied to the zirconia cell, oxygen is drawn through the zirconia disk to the anode. If a perforated cover is added to the cell cathode, the rate of oxygen flow to the cathode is limited. Limited by this rate, the current in the cell will reach saturation as the applied voltage is gradually increased. This saturation current is called the limiting current and is proportional to the oxygen concentration in the ambient environment.

2. oxygen sensorSO-D0-250The relevant parameters

1Wide measurement range,0.1%~25%Oxygen

2High accuracy, ±0.25% O2

3Wide temperature range,-20℃~+350℃

4The sensor signal has a small dependence on temperature,0.034 %Measurement signal/°CAmbient temperature

5High flexibility, output100 UA - 200 U.S., can be self-built amplifier circuit, can also be used with the board

62. Easy to install, with threaded structure, after installation, the sensor is firm and reliable

7Long service life,20000Hours

8Low cross sensitivity

3. oxygen sensorSO-D0-250matching board

1、GSBBoard

Input:

12Vdc (Possible range6-25Vdc)

Power consumption:

Standard power consumption200mA @ 12Vdc

Output:

① Simulation0-5V (Vout)

② Simulation4-20mA (Iout)

③ ThroughRS232Generate Digital Output

2、EDABBoard

Input:

7-30 VDCor6 VDC(Optional)

Power consumption:

Power consumption is approximately2.5 – 3.0Watt

Output:

① Linear output signal0–5 V DC (Adjustable lower output voltage with optional software)

②4Programmable alarm thresholds (Programmable with optional software)