Product Overview
The SGX series of PS1 and PS4 Solid Polymer Electrolyte gas sensors leverage a revolutionary technology based on catalytic reaction principles to measure target gases. These sensors generate a small current proportional to gas concentration, offering a stable, high-quality, and cost-effective manufacturing process. Key advantages include a very small size, high sensitivity, no power consumption, and very low cross-sensitivity. They are designed for applications such as TLV Monitoring, the Oil & Petrochemical Industry, Leak Detection, the Steel Industry, and Parking Garages.
Product Attributes
- Brand: SGX
- Technology: Solid Polymer Electrolyte
- Housing Material: PPO
- Origin: Poland (SGX Europe Sp. z o.o.)
- Warranty: 12 months
Technical Specifications
| Specification | PS1-CO-1000 | PS4-CO-1000 |
|---|---|---|
| Model | PS1-CO-1000 | PS4-CO-1000 |
| Target Gas | Carbon Monoxide (CO) | |
| Sensitivity | 25 ± 10 nA / ppm | |
| Measurement Range | 0 1000 ppm | |
| Zero Current | ± 100 nA | |
| Maximum Overload | 2000 ppm | |
| Response Time (T50) | < 10s | |
| Response Time (T90) | < 30s | |
| Repeatability | < 1% | |
| Lower Detectable Limit (LDL) | ≤ 2 ppm | |
| Linear Range | 1000 ppm | |
| Resolution (16Bit ADC) | 0.1ppm | |
| Operating Humidity Range | 15-95% RH | |
| Pressure Range | 800 to 1200 hPa | |
| Storage Temperature | 0 to 20°C | |
| Temperature Range | -40°C to +55°C | |
| Operating Principle | Amperometric | |
| Recommended Load Resistor | 100 Ω | |
| Bias Voltage | 0 mV | |
| Warm Up Time | < 60 s | |
| Long-Term Drift | < 1 %/month | |
| Zero Drift in Clean Air | < 2 ppm | |
| Storage Life | 12 months | |
| Expected Lifetime | > 5 years in air | |
| Weight | < 0.7g | < 6g |
Features
- Small size
- Wide temperature range
- Low cross sensitivity
- No electrolyte leakage
- High sensitivity
- Fast response time
- Extreme linear response up to high concentration
Important Notes
- All performance is based on conditions at 20°C, 50% RH and 1 atm, flow rate>150qcm/min, using SGX recommended circuitry.
- Sensor performance is temperature dependent; contact SGX for performance outside of 20°C.
- Do not solder to the connector pins as this may damage the sensor and invalidate the warranty.
- Details on recommended connector pins can be found in the FAQ section of the SGX website.
- Exposure to high concentrations of solvent vapours should be avoided during storage, fitting, and operation.
- When using sensors on PCBs, degreasing agents should be used prior to sensor fitting.
- For life safety performance requirements, it is recommended that all sensors and instruments are checked for response to gas before use.
Cross Sensitivity
| Gas | Formula | Test Concentration | Sensor Reading |
|---|---|---|---|
| Alcohols | R-OH | 1000ppm | 0ppm |
| Ammonia | NH3 | 50ppm | 0ppm |
| Carbon Dioxide | CO2 | 1000ppm | 1ppm |
| Chlorine | CL2 | 0ppm | 0ppm |
| Ethylene | C2H4 | 10ppm | 0ppm |
| Hydrogen Cyanide | HCN | 50ppm | 0ppm |
| Hydrogen | H2 | 100ppm | 20ppm |
| Hydrogen Sulphide | H2S | 50ppm | 0ppm |
| Isopropanol | C3H7OH | 1000ppm | 0ppm |
| Methanal | CH4 | 1%vol | n.e |
| Nitric Oxide | NO | 25ppm | 0ppm |
| Nitrogen Dioxide | NO2 | 10ppm | 0ppm |
| Sulphur Dioxide | SO2 | 10ppm | 0ppm |
Note: Interference factors may vary. This table is not exhaustive; contact SGX for other gases.
2411272324_Amphenol-PS4-CO-1000_C6629221.pdf
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