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Help Center4S Rev. 2 CiTiceL Electrochemical Sulfur Dioxide Gas Sensor (SO2 Sensor)
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4S Rev. 2 CiTiceL Sulfur Dioxide Sensor (SO2 Sensor) Key Features & Benefits:
• Industry leading reliability
• Improved performance variability
4S Rev. 2 CiTiceL Sulfur Dioxide Sensor (SO2 Sensor) Technical Specifications
| 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 ± 0.1 µA/ppm |
| Response Time (T90) | |
| Baseline Offset (clean air) | -0.2 to +0.5 ppm equivalent |
| Zero Shift (+20°C to +40°C) | |
| Repeatability | |
| Linearity | Linear over measurement range 0-20 ppm and within ±5% |
| ELECTRICAL | |
| Recommended Load Resistor | 10 Ω |
| 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 | -20°C to +50°C |
| Intermittent | -40°C to +55°C |
| Recommended Storage Temp | 0 - 20°C |
| Operating Pressure Range | 1 atm ± 20% |
| Operating Humidity Range | 15% to 90%RH non-condensing. |
| INTRINSIC SAFETY DATA | |
| Maximum current at 150 ppm | 0.1 mA |
| Maximum o/c Voltage | |
| Maximum s/c Current | |
| LIFETIME | |
| Long Term Output Drift | |
| Expected Operating Life | 2 years in clean air |
| Storage Life | 6 months in original packaging |
| Standard Warranty | 12 months from date of despatch |
* Specifications are valid at 20°C, 50% RH and 1013 mBar, using City Technology recommended circuitry. Performance characteristics outline the performance of sensors supplied within thefirst 3 months. Output signal can drift below the lower limit over time.
Poisoning
CiTiceLs are designed for operation in a wide range of environments and harsh conditions. However, it is important that exposure to high concentrations of solvent vapours is avoided, both during storage, fitting into instruments, and operation.
When using sensors with printed circuit boards (PCBs), degreasing agents should be used before the sensor is fitted. Do not glue directly on or near the CiTiceL as the solvent may cause crazing of the plastic.
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