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Description:
Question 1: where is the AO2 oxygen sensor used?
AO2 ptb-18.10 oxygen sensor of British city company is used in various instruments related to oxygen test, such as motor vehicle exhaust detection instrument; Waste gas environmental protection detection instrument; Oxygen index test instrument.
Question 2: how long is the shelf life of AO2 oxygen sensor?
Generally, the validity period of use is one year.
Question 3: how to save the AO2 oxygen sensor?
The best storage temperature is between "0 ° C ~ 20 ° C".
The original package of oxygen sensor must be sealed. Generally, it is sealed in a sealed plastic package filled with nitrogen.
The simple preservation method is to put it in the refrigerator and ensure the relative dry air humidity at the same time.
Specifications:
- Output in air 9-13mv
- range 0-100% O2
- accuracy 0.01% O2
- the expected service life is 360000% O2 hours at 20 ℃, 286000% O2 hours at 40 ℃, or two years in STP in air
- T90 response time < 5 seconds
- t99.5 response time < 40 seconds
-100% oxygen in signal 100 ± 1%
- linear 0-100% O2
- zero offset value < 20 μ V
- temperature range - 20 ℃ - + 50 ℃
- temperature compensation < 2% variation form: 0 ℃ to 40 ℃ (as shown in the figure)
- differential pressure range 0-500mbar Max
- 500-2000mbar absolute pressure range
- relative humidity range 0-99% non condensing
- long term output drift < 10% signal loss / year
- recommended load resistance 10K Ω per minute
The output of AO2 sensor changes with temperature, but gradually set thermistors to compensate for these changes. Thermistors are used to give AO2 very stable output over a wide temperature range.
Question 5: why does the oxygen sensor in the oxygen index tester feel easy to break?
AO2 oxygen sensor is a consumable. When it comes into contact with air, it begins to react chemically. As mentioned earlier, it has a service life of 360000% O2 hours at 20 ℃, 286000% O2 hours at 40 ℃, or two years in STP in air.
