So E1 001 Limiting Current Type Zirconia Oxygen Sensor - China

SO-E1-001 Limiting Current Type Zirconia Oxygen Sensor

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When voltage is applied to a zirconia electrolyte cell, oxygen is pumped through the zirconia disc from the cathode side to the anode side because the carriers of the current flowing through the zirconia electrolyte are oxygen ions.

By attaching a cap with a pinhole on the cathode side of the cell and by increasing the voltage over the cell the current shows saturation due to the rate limiting step in the transfer of oxygen to the cathode.

This saturation current is called limiting current and is nearly proportional to the ambient oxygen concentration.

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Below the advantages of the oxygen sensor: measuring range 10 ppm to 1000ppm oxygen High accuracy For many types a more or less linear characteristic Small temperature dependence of the sensor signal Low interference with other gases Long service life In many cases “Single point calibration“ necessary only once

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Applications: Medical Laboratory Food industry Household/Gastronomy Measuring technique Security technology/Monitoring (Electrical-) industry

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Characteristic Data:

Measuring gas: Oxygen concentration

Measuring medium: Gaseous atmosphere

Measuring principle: Limiting current type sensor

Measuring ranges: 10 ppm - 1000 ppm O2

Response time (t90): 2 to 25 sec.

(Depends on: sensor type, gas flow, measuring chamber)

Sensor voltage / heating voltage / power consumption / heater cold resistance Sensor voltage: 0, 7 to 1, 6 Volt Heating voltage: 3.6 – 4.4 Volts Power consumption: 1.3 to 1.8 Watts (depends on application and packaging) Cold resistance: R( 25°C ) = 3.25Ω ± 0.20Ω

Company Contact:

• Posted By: Shenzhen week Technology Ltd

• Phone: 86-0755-83289036

• Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan, Shenzhen , Guangdong , China

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