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4S-NH3 Electrochemical Ammonia Gas Sensor
4S-NH3 Electrochemical Ammonia Gas Sensor
Product details
product details
The 4S-NH3 sensor is a constant potential electrolytic ammonia gas sensor. NH3 and O2 undergo corresponding oxidation-reduction reactions at the working electrode and counter electrode, releasing charges to form a current. The magnitude of the current is proportional to the concentration of ammonia gas, and the concentration of ammonia gas can be determined by testing the magnitude of the current.
Sensor characteristics
Low power consumption, high precision, high sensitivity, wide linear range, strong anti-interference ability, excellent repeatability and stability.
Main applications
Widely suitable for ammonia detection in industrial applications.
TECHNICAL INDEX
| Basic performance | |
| sensitivity | 90±40nA/ppm |
| range | 0～100ppm |
| baseline drift | <± 2 ppm NH3 equivalent |
| Response time (T90) | ＜ 15s (typical value 12s) |
| maximum load | ＜200ppm |
| Linearity | linear |
| repeatability | ＜±2% |
| Usage environment | |
| Working temperature range | -40℃～+55℃ |
| Working pressure range | 800～1200mbar |
| Operating humidity range | 15%RH～90%RH |
| Lifetime warranty | |
| Output drift | <20% per year |
| service life | 24 months (in the air) |
| warranty | 12 months (from the date of shipment) |
| Recommended storage temperature | 0-20 ℃ (closed container) |
| Electricity | |
| resolution | ＜2ppm |
| Recommended load resistor | 10Ω |
| Intrinsic safety characteristics | |
| 2000ppm maximum current | 0.2mA |
| Maximum O/C voltage | 1.3V |
| Maximum S/C current | ＜1.0A |
Note: Product parameters are subject to change without prior notice
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