MNS-4NH3-100 Electrochemical Ammonia Gas Sensor
The MANORSHI MNS-4NH3-100 is a potentiostatic electrochemical sensor designed for ammonia (NH3) gas detection.
Ammonia undergoes oxidation-reduction reactions inside the sensor, releasing electric charges and generating a current. The generated current is proportional to the ammonia concentration, allowing the NH3 concentration to be determined by measuring the sensor output current. MNS-4NH3-100 Ammonia gas sensor
Key Features
High stability
Quick response and recovery
Strong environmental adaptability
Low cross-sensitivity to methanol
Technical Specifications
Parameter | Specification |
Product Model | MNS-4NH3-100 |
Target Gas | Ammonia (NH3) |
Detection Principle | Potentiostatic Electrochemical |
Measuring Range | 0–100 ppm |
Maximum Load | 200 ppm |
Sensitivity | 100 ± 30 nA/ppm |
Response Time | ≤60 s |
Resolution | 1 ppm |
Bias Voltage | 0 mV |
Linearity | Linear |
Long-Term Stability | <20% Signal Value/Year |
Temperature Range | -40°C to +50°C |
Pressure Range | 800–1200 mbar |
Humidity Range | 15%–95% RH, Non-condensing |
Storage Temperature | 0°C to +20°C |
Service Life | 2 Years |
Warranty Period | 1 Year |
Maximum O/C Voltage | 1.3 V |
Maximum S/C Current | <1.0 A |
Cross-Interference
Interfering Gas | Concentration | Output Signal |
CO | 500 ppm | 0 ppm |
H2S | 25 ppm | 30 ppm |
SO2 | 20 ppm | -6 ppm |
NO | 50 ppm | 0 ppm |
NO2 | 5 ppm | -7.5 ppm |
H2 | 100 ppm | 0 ppm |
CO2 | 5000 ppm | 0 ppm |
Applications
FAQs
What gas does the MNS-4NH3-100 detect?
It is designed to detect ammonia, NH3.
What sensing principle does it use?
It uses a potentiostatic electrochemical sensing principle.
What is the measuring range?
The specified measuring range is 0–100 ppm.
What is the maximum load?
The specified maximum load is 200 ppm.
What is the sensitivity?
The specified sensitivity is 100 ± 30 nA/ppm.
What is the response time?
The specified response time is ≤60 seconds.
What is the resolution?
The specified resolution is 1 ppm.
Does the sensor require a bias voltage?
No external bias is specified; the bias voltage is 0 mV.
What is the operating temperature range?
The specified temperature range is -40°C to +50°C.
What is the expected service life?
The specified service life is 2 years.
What applications is it suitable for?
The datasheet specifies portable and fixed gas detectors as the main applications.
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