MEu-NH3 Ammonia Gas Sensor Three Electrode Electrochemistry Potentiostatic Electrolytic Type
MEu-NH3 Ammonia Gas Sensor Three Electrode Electrochemistry Potentiostatic Electrolytic Type
Core Operating Principle
Utilizes a three-electrode system (Working Electrode [WE], Reference Electrode [RE], and Counter Electrode [CE]):
Ammonia gas permeates a gas-permeable membrane into the electrolyte chamber, where it undergoes an electrochemical oxidation reaction at a fixed potential, releasing electrons to generate a minute current. The magnitude of the current is strictly linearly proportional to the ammonia concentration; the downstream circuitry captures this current and converts it into an ammonia concentration value in ppm.
Typical Application Scenarios
Industrial Safety: Ammonia leak alarms for cold storage refrigeration rooms, fertilizer plants, pharmaceutical workshops, and chemical processing facilities;
Environmental Monitoring: Online monitoring of exhaust emissions at wastewater treatment plants and landfill sites;
Livestock Farming: Ammonia concentration monitoring in pig farms and poultry houses, integrated with ventilation systems;
Municipal Environment: Ammonia detection for odor control in public restrooms and waste transfer stations.
Specification:
|
Zero drift (clean air)
|
<±2 ppm |
| Long-term zero drift | <10% drift over 6 months |
| Repeatability error | <2% FS |
| Linearity error Within | ±5% |
| Operating temperature | -40°C to +40°C |
| Operating humidity | 15% to 90% RH (non-condensing) |
| Applicable pressure | Standard atmospheric pressure ±10% |
| Expected service life | 2 years under normal operating conditions |
| Dimensions | Φ20 mm × 16.5 mm |
| Pins Standard | 3-pin gold-plated terminals |
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