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Help CenterThe GS Oxygen Sensor KE Series (KE-25 & KE-50)
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The GS Oxygen Sensor KE series (KE-25 and KE-50)
The GS Oxygen Sensor KE series (KE-25 and KE-50) is a unique galvanic cell type oxygen sensor which was developed in Japan in 1985. Its most notable features are long life expectency, excellent chemical durability, and it is not influenced by CO 2 . The KE series oxygen sensor is ideal to meet the ever-increasing demand for oxygen monitoring in various fields such as combustion gas monitoring, the biochemical field, medical applications, domestic combustion appliances, etc.
KE-25 & KE-50 Oxygen Sensor Features:
* Long life
KE-25 - 5 years / KE-50 - 10 years in ambient air
* Virtually no influence from CO 2 , CO, H 2 S, NOx, H 2
* Low cost
* Operates in normal ambient temperatures
* Stable output signal
* No external power supply required for sensor operation
* No warmup time is required
KE-25 & KE-50 Oxygen Sensor Applications:
* Medical - Anesthetic instruments, respirators, oxygen-enrichers
* Biotechnology - Oxygen incubators
* Food industry - Refrigeration, greenhouses
* Safety - Air conditioners, oxygen detectors, fire detectors
KE-25 & KE-50 Oxygen Sensor Specifications
Measurement range: 0 ~ 100% O2
Accuracy: KE-25 :±1%（full scale）; KE-50: ±2%（full scale）
operating conditions:
Atmospheric pressure: 811 hPa ~ 1216 hPa
Temperatire: 5 ~ 40'C
Relative humidity: 10 ~ 90%R.H.(no cindensation)
Response time(90%): KE-25: 14±2 seconds ; KE-50: 60±5 seconds
Initial ouput voltage under standard test conditions: KE-25: 10.0 ~ 15.5mV ; KE-50: 47 ~ 65mV
Atandard test conditions:
Test gas: 21% O2
Atmospherture: 1013±5hPa
Temperature: 25'C±1'C
Relative humidity: 60±5%
Linearity( (Va-V0)/(V100-V0) ) :0.21±0.02
Offset voltage (V0): KE-25: ≤0.5mV ; KE-50: ≤6.0mV
Temperature(VH/Va): 0.91 ~ 1.09
characteristics(VL/Va): 0.91 ~ 1.09
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