Solid State Electrochemical Hydrogen Sensor
Features
High Stability, Small Size, Medium Power Consumption, Fast Response, Good Selectivity, Long Life-Time
Applications
Leak Detection of Hydrogen Gas,
How to Use
PR 2020 has three different types of behavior which can be applied to different environment. PR 2020A can be used to monitor the H2 concentration, while PR 2020 B and C are to give an alarm at certain level of H2. For example, PR 2020C gives rather low voltage(~30-40mV) in the low H2 concentration while it start to gives high voltage(>200mV) at around 4%H22. Please set the threshold voltage for the warning concentration of 4%H2. For example, set V=150mV. Then it will responds when H2 reaches close to 4%.
Electrical Characteristics
| Item | Contents | |||
| Min. | Typ. | Max. | Units | |
| Supply Voltage | 2.0±0.1 | V | ||
| Power Consumption | <350 | <400 | <600 | mW |
| Inrush Current | 200 | mA | ||
| Warming-up Time | <10 | <20 | seconds | |
| Resolution | 1 | ppm | ||
Sensor Characteristics
Item | Contents | |||
Min. | Typ. | Max. | Units | |
Detection Range | 100ppm | 4% | ppm/% | |
Operating Temperature | -10 | 60 | ℃ | |
Operating Humidity | 5 | 100 | %RH | |
Storage Temperature | -20 | 70 | ℃ | |
Life Expectation | 5 | year | ||
Response Time | 3 | 10(diffusion) | seconds | |
Size | Φ12/11.5 high | mm | ||
Weight | 1 | g | ||
Temperature Coefficient | 0.5 mV/oC (or <0.5%/oC) | |||
Warming-up Time | ±20% (or ±50 ppm) | |||
Resolution | Glass Polyvinyle Plastic Custom | |||
IMPORTANT : This product is not designed and authorized for use as a critical component in life support applications wherein a failure or malfunction of the products may result in injury or threat to life or in a chemical process wherein an accurate measurement is necessary. Avoid heavy exposure to sulfur or chlorine containing vapors. PSS Inc. reserves the right to make changes without notice to this product to improve reliability, functioning or design.
