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Nitric Oxide Sensor (NO Sensor) - NO-B1

• Range: 250ppm NO limit of performance warranty
• Sensitivity: 400 to 620nA/ppm in 50ppm NO
• Resolution: < 0.15 RMS noise (ppm equivalent)
• Response time t90: < 30(s) from zero to 50ppm NO
• Temperature range: -30 to 50°C
• Pressure range: 80 to 120 kPa
• Humidity range: 15 to 90 % rh continuous
• Weight: < 13g

  • Model Number: NO-B1
  • Data Sheet: Date Sheet File
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  • Nitric Oxide Sensor (NO Sensor)
  • Nitric Oxide Sensor (NO Sensor)
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Product Specification

NO-B1 Nitric Oxide Sensor (NO Sensor) Description
Alphasense Nitric Oxide gas sensors operate using proven fuel cell technology.

NO-B1 Nitric Oxide Sensor size:
32mm diameter package, the best choice for fixed site applications

The NO range provides OEMs with reliable sensors for use in a number of high volume applications. Strong signal levels combined with low zero current allows resolution to 200 parts per billion (ppb) whilst giving linear outputs to as high as 250ppm. The sensors are suitable for inclusion in fixed installation sensing heads, portable safety instruments, urban air monitoring and stack gas analysers.

Alphasense NO sensors provide a significant improvement in stability of response to transient relative humidity changes.

The NO sensors offer our electrolyte leak-free guarantee and reliable long-term detection performance. The leakproof housing is moulded with a colour coded top for ease of identification.


NO-B1 Nitric Oxide Sensor NO Sensor PERFORMANCE
Sensitivity
 nA/ppm in 50ppm NO  
 400 to 620
Response time
 t90 (s) from zero to 50ppm NO
 < 30
Zero current
 ppm equivalent in zero air
 0 to +4
Resolution
 RMS noise (ppm equivalent)
 < 0.15
Range
 ppm NO limit of performance warranty
 250
Linearity
 ppm error at full scale, linear at zero and 50ppm NO
 -20 to -25
Overgas limit
 maximum ppm for stable response to gas pulse
 1200



NO-B1 Nitric Oxide Sensor NO Sensor LIFETIME
Zero drift
 ppm equivalent change/year in lab air
 < 0.3
Sensitivity drift
 % change/year in lab air, monthly test
 < 5
Operating life
 months until 80% original signal  (24 month warranted)
 > 24



NO-B1 Nitric Oxide Sensor NO Sensor ENVIRONMENTAL
Sensitivity @ -20°C
 % (output @ -20°C/output @ 20°C) @ 50ppm NO
 89 to 98
Sensitivity @ 50°C
 % (output @ 50°C/output @ 20°C) @ 50ppm NO
 97 to 104
Zero @ -20°C
 ppm equivalent change from 20°C
 < 0 to -2
Zero @ 50°C
 ppm equivalent change from 20°C
 < 6 to 20



NO-B1 Nitric Oxide Sensor NO Sensor CROSS SENSITIVITY
H2S  sensitivity
 % measured gas @ 20ppm H2S
 < 60
NO2  sensitivity
 % measured gas @ 10ppm NO2
 < 5
Cl2    sensitivity
 % measured gas @ 10ppm Cl2
 < 5
SO2  sensitivity
 % measured gas @ 20ppm SO2
 < 4
H2    sensitivity
 % measured gas @ 400ppm H2
 < 0.1
CO    sensitivity
 % measured gas @ 400ppm CO
 < 0.1
NH3  sensitivity
 % measured gas @ 20ppm NH3
 < 0.1
CO2  sensitivity
 % measured gas @ 5% Vol CO2 
 < 0.1



NO-B1 Nitric Oxide Sensor NO Sensor KEY SPECIFICATIONS
Bias voltage
 mV (working electrode potential is above ground)
 +300
Temperature range
 °C -30 to 50
Pressure range
 kPa
 80 to 120
Humidity range
 % rh continuous
 15 to 90
Storage period
 months @ 3 to 20°C (stored in sealed pot)
 6
Load resistor
 Ω (recommended)
 10 to 47
Weight
 g
 < 13

Matched Transmitter board for NO-B1 NO Sensor

4-20mA Digital Transmitter Board
   • Factory calibration, custom-set for immediate use
   • Digital zero, sensitivity and temperature compensation
   • Digital and 4-20mA output
   • Biased or unbiased operation
   • Calibration and range change

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