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HS-1000 Humidity Sensor
The ECOTEC HS-1000 solves the key challenges of accurately measuring the fuel cell humidity levels in high temperature and high humidity fuel cell gas conditions.
Key uses:
- PEMFC - Proton Exchange Membrane Fuel Cells
- PEMFC - Polymer Electrolyte Membrane Fuel Cells
Features
Designed specifically for (PEMFC) environments
Dew point range 30°C to 100°C
Able to detect transients in the humidication
Provides accurate and reliable dew point data
No drift over time
Operates at a wide range of flow rates
Measures gas humidity in and out of fuel cell to mass balance
Quickly verify the accuracy and stability of humidification equipment
Continuous readings with rapid response time as as 0.8 seconds for gas flows greater than 0.4 L/min
Dew point is measured independent of gas mixture – components (normal air, H2, CO, CO2, N2 do not overlap with the H2O vapor absorption line
Allows the user to experiment with a range of typical fuel cell conditions such as high humidity, high temperature, and various flow rates
Related Applications
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Technical specification
Ranges
| Range | 40 mB to 1000 mB water vapor partial pressure (30° to 100°C dew point) |
| Accuracy | ±2% of the reading in millibars + 1 millibar, or ±0.5°C dew point |
| Max Pressure | 30 psig (200 kPa gauge pressure) |
| Response Time | As quickly as 0.8 seconds for gas flows greater than 0.4 L/min |
Pump
| Flow Rate Change | Flow rate independent (Note: Response time increases below 0.4 L/min) High flow rates (above 15 L/min) may be accommodated using a slip-stream/bypass flow line |
Environmental Conditions
| Ambient Temperature Range | 50°F to 86°F (10°C to 30°C) |
| Max Sample Cell Temperature | 221°F (105°C) |
Physical
| Analog Output | (0-5VDC), 20 mA maximum |
| AC Power | 90 to 240 VAC, 1.4 A, 50 to 60 Hz |
| Dimensions and Weight |
Sample cell: 6” x 6” x 2” (15cm x 15cm x 5cm) 1.7 lb (0.8 kg) Electronics: 8.75” x 10” x 3.5” (22.2cm x 25.4cm x 8.9cm), 3.75 lb (1.7 kg) |
| Cable Length | 40” (1m) |
| Data Logging Software Requirements (for computer) |
Minimum display resolution: 1024 x 768 Serial input or Serial/USB adapter |
| Wetted Materials | Nickel-plated aluminum, sapphire, epoxy |
Important Note: Due to ECOTEC’S continuous program of improvement, this specification is subject to change without prior notice.
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