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Carbon Monoxide Sensor (CO Sensor) - CO-BM

  • Carbon Monoxide Sensor (CO Sensor)
  • Carbon Monoxide Sensor (CO Sensor)
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• Range: 5,000 ppm limit of performance warranty
• Sensitivity: 80 to 130 nA/ppm in 400ppm CO
• Response time (t90): < 25 (s) from zero to 400ppm CO
• Resolution: < 0.5 RMS noise (ppm equivalent)
• Temperature range: -30 to 50°C
• Pressure range:80 to 120KPa
• Humidity range: 15 to 90 % rh continuous
• Weight: < 13g

  • Model Number: CO-BM
  • Data Sheet: Date Sheet File
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Product Specification

CO-BM Carbon Monoxide Sensor (CO Sensor) Description
Alphasense Carbon Monoxide gas sensors operate using proven fuel cell technology.

CO-BM Carbon Monoxide Sensor sizes:
32mm diameter package, the best choice for fixed site applications

The Alphasense family of CO sensors have proven themselves in the field with long term stability and reliable operation, well beyond the two-year warranty, using our patented electrode technology.

CO-BM Carbon Monoxide Sensor (CO Sensor) PERFORMANCE
Sensitivity
 nA/ppm in 400ppm CO
 80 to 130
Response time
 t90 (s) from zero to 400ppm CO
 < 25
Zero current
 ppm equivalent in zero air < ± 4
Resolution
 RMS noise (ppm equivalent)
 < 0.5
Range
 ppm limit of performance warranty
 5,000
Linearity
 ppm CO error at full scale, linear at zero, 1000ppm CO
 < ± 30
Overgas limit
 maximum ppm for stable response to gas pulse
 10,000



CO-BM Carbon Monoxide Sensor (CO Sensor) LIFETIME
Zero drift
 ppm equivalent change/year in lab air
 < 0.1
Sensitivity drift
  % change/year in lab air, monthly test
 < 3
Operating life
 months until 80% original signal (24 month warranted)
  > 24



CO-BM Carbon Monoxide Sensor (CO Sensor) ENVIRONMENTAL
Sensitivity @ -20°C
 % (output @ -20°C/output @ 20°C) @ 400ppm CO
 70 to 88
Sensitivity @ 50°C
 % (output @ 50°C/output @ 20°C) @ 400ppm CO
 102 to 115
Zero @ -20°C
 ppm equivalent change from 20°C < -1 to +4
Zero @ 50°C
 ppm equivalent change from 20°C
 < ± 6



CO-BM Carbon Monoxide Sensor (CO Sensor) CROSS SENSITIVITY
Filter capacity
 ppm·hrs                               H2S
 250,000
Filter capacity
 ppm·hrs                               NO2
 120,000
Filter capacity
 ppm·hrs                               NO
 120,000
Filter capacity
 ppm·hrs                               SO2
 160,000
H2S sensitivity
 % measured gas @ 20ppm  H2S
 < 0.1
NO2 sensitivity
 % measured gas @ 10ppm  NO2
 < 0.1
Cl2 sensitivity
 % measured gas @ 10ppm  Cl2
 < 0.1
NO sensitivity
 % measured gas @ 50ppm  NO
 < 25
SO2 sensitivity
 % measured gas @ 20ppm  SO2
 < 0.1
H2 sensitivity
 % measured gas @ 400ppm H2 at 20°C
 < 65
C2H4 sensitivity
 % measured gas @ 400ppm C2H4
 < 65
NH3 sensitivity
 % measured gas @ 20ppm   NH3
 < 0.1



CO-BM Carbon Monoxide Sensor (CO Sensor) KEY SPECIFICATIONS
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


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