• High Concentration Sulfur Dioxide Sensor (SO2 Sensor)
  • High Concentration Sulfur Dioxide Sensor (SO2 Sensor)
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High Concentration Sulfur Dioxide Sensor (SO2 Sensor)

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  • Price

    Price on request   ≥1piece

  • Model Number

    SO2-BE

  • Data Sheet

  • Package

    Original packaging

  • Specs

    SO2-BE

  • Quantity

    - +

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Product Description

SO2-BE Sulfur Dioxide Sensor SO2 Sensor Description
Alphasense Sulfur Dioxide gas sensors operate using proven fuel cell technology.

SO2-BE Sulfur Dioxide Sensor size:
32mm diameter package, the best choice for fixed site applications

The SO2 range provides OEMs with reliable sensors for use in a variety of applications. Strong signal levels combined with low zero current allows resolution below 1ppm and an operating range for safety applications up to 2,000ppm. The sensors are designed for use in both fixed site and portable instrumentation.

The SO2 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.


SO2-BE Sulfur Dioxide Sensor SO2 Sensor PERFORMANCE
Sensitivity
 nA/ppm in 20ppm SO2
 70 to 85
Response time
 t90 (s) from zero to 20ppm SO2
 < 30
Zero current
 ppm equivalent in zero air
 < ±2
Resolution
 RMS noise (ppm equivalent)
 < 2
Range
 ppm limit of performance warranty
 2,000
Linearity
 ppm error at full scale, linear at zero and 20ppm SO2
 nd
Overgas limit
 maximum ppm for stable response to gas pulse
 10,000



SO2-BE Sulfur Dioxide Sensor SO2 Sensor LIFETIME
Zero drift
 ppm equivalent change/year in lab air
 nd
Sensitivity drift
 % change/year in lab air, monthly test
 nd
Operating life
 months until 80% original signal  (24 month warranted)
 > 24



SO2-BE Sulfur Dioxide Sensor SO2 Sensor ENVIRONMENTAL
Sensitivity @ -20°C
 % (output @ -20°C/output @ 20°C) @ 20ppm
 80 to 90
Sensitivity @ 50°C
 % (output @ 50°C/output @ 20°C) @ 20ppm
 95 to 105
Zero @ -20°C
 ppm equivalent change from 20°C
 < ±1
Zero @ 50°C
 ppm equivalent change from 20°C
 < -1 to 10



SO2-BE Sulfur Dioxide Sensor SO2 Sensor CROSS SENSITIVITY
Filter capacity
 ppm·hrs
 4,000
H2S  sensitivity
 % measured gas @ 20ppm H2S
 < 2
NO2  sensitivity
 % measured gas @ 10ppm NO2
 < -180
Cl2    sensitivity
 % measured gas @ 10ppm Cl2
 < 35
NO    sensitivity
 % measured gas @ 50ppm NO
 < -30
CO    sensitivity
 % measured gas @ 400ppm CO
 < 8
H2    sensitivity
 % measured gas @ 400ppm H2
 < 1.5
C2H4 sensitivity
 % measured gas @ 400ppm C2H4
 < 0.1
NH3   sensitivity
 % measured gas @ 20ppm NH3
 < 0.1



SO2-BE Sulfur Dioxide Sensor SO2 Sensor KEY SPECIFICATIONSP
Temperature range
 °C
 -30 to 50
Pressure range
 kPa
 80 to 120
Humidity range
 % rh continuous (see note below)
 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 SO2-BE SO2 Sensor

4-20mA Analogue Transmitter Board
  • Factory calibration, custom-set for immediate use
  • Wide operating voltage range
  • Low RFI susceptibility
Alphasense 4-20 mA analogue transmitter boards provide a cost effective way for Original Equipment Manufacturers to engineer transmitter heads for fixed installation systems.