Ammonia Gas Sensor

The SGX-4NH3 ammonia sensor is designed to operate in many harsh environments and conditions. This sensor is designed for the food industry, Engine Rooms, Freezers, Docks, Blast Cells, Food-Processing areas, Refrigeration Systems, Breweries, Refineries, and more.

Performance

• Range: 0 – 100 ppm
• Output Signal: 100 ± 30 nA/ppm
• Typical Baseline Range (pure air): ±1 ppm equivalent
• Linearity: Linear
• Response time (T90): 40 s
• Maximum Overload: 200 ppm
• Long-Term Output Drift: 20% per Annum
• Recommended Load Resistor: 10 ohms
• Repeatability: ±10% Resolution 1 ppm
• Warranty: 1 year
• Bias: No Bias

Operating Conditions

• Temperature Range -40°C to +50°C
• Operating Humidity: 15 – 90% RH
• Pressure range: 800 to 1200 mbar
• Storage Temperature: 0°C to 20°C
• Storage life six months in original packing (0 – 25°C)
• Expected Operating Life > 24 Months in Air

Instrinsic Safety Data

• Maximum at 2000 ppm 0.3 mA
• Maximum o/c Voltage 1.3 V
• Maximum s/c Current 1.0 A

Gas Sensor Board

• Temperature Humidity compensated
• UART Interface 9600-8-N-1

All Sensors work with our Wireless Sensor Node, STS-Node, allowing for easy connection to our IoT Platform.