Sulfur Dioxide (So2) Gas Sensor 4s Rev. 2

Following are the Main Key Features & Benefits of Sulfur Dioxide (SO2) Gas Sensor 4S Rev. 2 :
a c Industry leading reliability
a c Improved performance variability
MEASUREMENT
Operating Principle: 3-electrode electrochemical
Measurement Range: 0-20 ppm SO2
Maximum Overload: 150 ppm SO2
Filter: To remove H2S
Filter Capacity: 1000 ppm hrs @ 25 ppm H2S
Sensitivity: 0.5 A 0.1 I A/ppm
Response Time (T90): < 25 Seconds at 20a C
Baseline Offset (clean air): -0.2 to +0.5 ppm equivalent
Zero Shift (+20A C to +40A C): < 0.1 ppm equivalent
Repeatability: < A 2% of signal
Linearity: Linear over measurement range 0-20 ppm and within A 5%
ELECTRICAL
Recommended Load Resistor: 10 IC
Bias Voltage: Not required
Resolution: Dependent on electronics. (0.1 ppm when using recommended electronics)
MECHANICAL
Housing Material: Noryl 110
Weight: Approx. 4.5 g
Orientation: Any
ENVIRONMENTAL
Typical Applications: Portable life safety
Operating Temperature Range:
Continuous: -20A C to +50A C
Intermittent: -40A C to +55A C
Lifetime will be reduced if regularly exposed to extremes of temperature
Recommended Storage Temp: 0 - 20A C
Operating Pressure Range: 1 atm A 20%
Operating Humidity Range: 15% to 90%RH non-condensing.
Extended exposure to extreme humidity conditions will degrade sensor performance.
INTRINSIC SAFETY DATA
Maximum current at 150 ppm: 0.1 mA
Maximum o/c Voltage: < 0.75 V