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.
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
Applications:
* Medical - Anesthetic instruments, respirators, oxygen-enrichers
* Biotechnology - Oxygen incubators
* Food industry - Refrigeration, greenhouses
* Safety - Air conditioners, oxygen detectors, fire detectors
Specifications
| Item | Model | ||
| KE-25 | KE-50 | ||
| Measurement range | 0 ~ 100% O2 | ||
| Accuracy | ±1%（full scale） | ±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%) | 14±2 seconds | 60±5 seconds | |
| Initial ouput voltage under standard test conditions | 10.0 ~ 15.5mV | 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 | ≤0.5mV | ≤6.0mV |
| Temperature characteristics |
VH/Va | 0.91 ~ 1.09 | |
| VL/Va | 0.91 ~ 1.09 | ||
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