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Oxygen sensor
Oxygen sensor
IntroductionJapan Storage Battery has developed the galvanic cell type oxygen sensor based on its technologies in fuel cells and lead-acid batteries. While the conventional galvanic cell type oxygen sensor was affected by CO2 and its life was short, because an aqueous solution of KOH was used as the electrolyte, our oxygen sensor using a weak acid electrolyte is not affected by any acidic gas and its life is 10 to 20 times as that of the conventional sensor.
Therefore, our oxygen sensor will find new and wide range of applications.
ApplicationsMedical Use / Anesthesia, Respirator, Oxygen concentrator
Bio-Technology / Oxygen Incubator, Anaerobic Cultivator
Food / Refrigerator, Vegetable Factory
Home Security System / Air-Conditioning & Oxygen deficiency Alarm System, Fire Alarm System
Measuring on industry / Exhaust gas, Combusion devices
Features Extremely long life (5 to 10 years)
No affection by carbon dioxide
High stable output voltage
No outside electric source for driving sensor
Operative in the normal temperature
No warming time
Economical
Structure
1.A click familiarizes an expansion image with looking.
Our oxygen sensor comprises a lead-oxygen battery consisted of a lead anode, an oxygen cathode made up of gold and a week acid electrolyte, as depicted in Fig.1. The gold electrode is bonded onto a non-porous Teflon FEP membrane.
A small amount of oxygen permeating through the membrane is reduced electrochemically at the gold electrode. A resistance and a thermistor for temperature compensation are connected between the cathode and the anode and therefore, the lead-oxygen battery is always discharged. The current which flows through the resistance and the thermistor is proportional to the oxygen concentration (strictly speaking, Oxygen partial pressure) of the ambient atmosphere in contact with the Teflon FEP membrane. Therefore, by measuring the voltage between the ends of the resistance an
Specifications
Spec/ModelKE-50KE-25
FeaturesLong lifeQuick response,
high accuracy
O2 Range0-100% O20-100% O2
Accuracy± 2%± 1%
Temperature Range5-40 °C5-40 °C
90%
Response
Time
60 seconds12 seconds
Life
Expectancy
180 X 104%h
(10 years
in20°C Air)
90 X 104%h
(5 years
in20°C Air)
   
Spec/ModelKE-12SK-25
FeaturesVery quick responseQuick Response,high accuracy
O2 Range0-100% O20-30% O2
Accuracy± 1%± 1%
Temperature Range5-40 °C5-40 °C
90%
Response
Time
5 seconds15 seconds
Life
Expectancy
45 X 104%h
(2.5 years
in20°C Air)
45 X 104%h
(2.5 years
in20°C Air)
   
 
1.Viewpoint of sensor life
The life expectancy of the oxygen sensor is expressed with the value of ( % of oxygen concentration)×(hr of time).Yet, it is in the case that a sensor used it under the regular conditions of 60% relative humidity, 1013hpa air pressure, and 20°C temperature.
For example, a sensor of 10,000%h life expectancy has 100h life time during the 100% oxygen.
2.KE-12 model is the order received raw product.
    
 
Size figure
[ KE-50 / KE-25 / KE-12 ]
* Form can be changed according to a use.
[SK-25] 
<< A click familiarizes an expansion image with looking.

Catalog Download
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KE series Catalog(2.591KB)
SK series Catalog(2.652KB)

 

 

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