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NO-A1 Nitric Oxide Sensors

NO-A1 Nitric Oxide Sensors

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NO-A1 Nitric Oxide Sensors

Product catalog summary

Performance Specifications:

Sensitivity: 320 to 480 nA/ppm in 50ppm NO.
Response Time: t90 < 20 seconds from zero to 50ppm NO.
Zero Current: 3 ppm equivalent in zero air.
Resolution: RMS noise < 0.2 ppm equivalent.
Range: Performance warranty limit at 250 ppm NO.
Linearity: Error at full scale, linear at zero and 50ppm NO, +32 to +36 ppm.
Overgas Range: Maximum stable response to gas pulse at 800 ppm.
Lifetime: Zero drift and sensitivity drift are not determined (nd). Operating life is over 24 months until 80% of the original signal is maintained.

Environmental Specifications:

Sensitivity at -20°C: 83 to 93% of output at 20°C for 50ppm.
Sensitivity at 50°C: 101 to 105% of output at 20°C for 50ppm.
Zero at -20°C: ±0.5 ppm equivalent change from 20°C.
Zero at 50°C: 1 to 3 ppm equivalent change from 20°C.

Cross Sensitivity:

NO₂: < 5% at 50ppm.
SO₂: < 2% at 20ppm.
Cl₂: < 15% at 10ppm.
H₂: < 0.1% at 400ppm.
H₂S: < 15% at 20ppm.
CO: < 0.1% at 400ppm.
C₂H₄: Not determined (nd).
NH₃: < 0.1% at 20ppm.
CO₂: 0% at 5% Vol.

Key Specifications:

Bias Voltage: +300 mV.
Temperature Range: -30 to 50°C.
Pressure Range: 80 to 120 kPa.
Humidity Range: 15 to 90% rh continuous.
Storage Period: 6 months at 3 to 20°C in a sealed pot.
Load Resistor: Recommended 10 to 100 Ω.
Weight: < 6 g.

Additional Notes:

All sensors are tested under ambient conditions with a 10 Ω load resistor unless otherwise stated.
Customers should test sensors under their own conditions to ensure suitability.
Alphasense Ltd reserves the right to change design features and specifications without prior notification.

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