Product Overview
The SGX series of PS1 and PS4 Electrochemical gas sensors utilize a revolutionary Solid Polymer Electrolyte technology based on catalytic reaction principles. These sensors generate a small current proportional to the target gas concentration, offering a stable, high-quality, and cost-effective manufacturing process. They are characterized by their very small size, high sensitivity, low power consumption, and minimal cross-sensitivity to other gases. Ideal for applications in Medical, Industrial, Combustion Control, Food Industry, and General Gas Detection.
Product Attributes
- Brand: SGX
- Technology: Solid Polymer Electrolyte
- Housing Material: PPO
- Lead Free: Yes
- Power Consumption: Low
- Sensor Type: Capillary
Technical Specifications
| Specification | PS1-O2-25% | PS4-O2-25% |
|---|---|---|
| Sensitivity (nA/ppm) | 0.2 0.03 | 0.2 0.03 |
| Measurement Range (%vol) | 0 25 | 0 25 |
| Zero Current (A) | 40-60 | 40-60 |
| Maximum Overload (%vol) | 30 | 30 |
| Response Time (T50) | < 5s | < 5s |
| Response Time (T90) | < 10s | < 10s |
| Lower Detectable Limit (LDL) (%vol) | 0.5 | 0.5 |
| Resolution (16Bit ADC) (%vol) | 0.01 | 0.01 |
| Operating Humidity Range (%) | 15-95% RH | |
| Pressure Range (hPa) | 800 to 1200 | |
| Storage Temperature () | 0 to 20 | |
| Temperature Range () | -20C to +55C | |
| Operating Principle | Amperometric, 3-electrode | |
| Recommended Load Resistor () | 220 | |
| Bias Voltage (mV) | -400 to -600 | |
| Warm Up Time (min) | < 15 | |
| Long-Term Drift (%/month) | < 1 | |
| Zero Drift in Clean Air (%vol) | < 0.2 | |
| Storage Life (months) | 12 | |
| Expected Lifetime (years) | > 5 | |
| Warranty (months) | 12 | |
| Weight (g) | < 0.7 | < 6 |
Important Notes
- All performance is based on conditions at 20C, 50% RH and 1 atm, flow rate>150qcm/min, using SGX recommended circuitry.
- Sensor performance is temperature dependent; please contact SGX for temperature performance other than 20C.
- Do not solder to the connector pins as this may damage the sensor and thereby invalidate the warranty.
- Details on recommended connector pins can be found in the Frequently Asked Questions within the Gas Sensor section of the SGX website.
- Handling Precaution: Do not solder the sensor directly onto a PCB or to wires, excessive heat could cause damage. Use PCB sockets and firmly push-fit the sensor into the application, so that a correct electrical connection is achieved.
- Where life safety is a performance requirement, it is recommended that all sensors and instruments using these sensors are checked for response to gas before use.
Cross Sensitivity
Note: 1) The above interference factors may vary due to different sensors and service life, please refer to the actual test results. 2) This table is not complete for all cross gases, other gas please contact with us.
| Gas | Formula | Test Concentration | Sensor Reading |
|---|---|---|---|
| Ammonia | NH3 | 20ppm | 0ppm |
| Carbon Dioxide | CO2 | 5000ppm | 0ppm |
| Carbon Monoxide | CO | 1%vol | 0ppm |
| Chlorine | CL2 / HCN | 50ppm | 1ppm |
| Hydrocarbons (unsaturated) | H2 | 100ppm | 0ppm |
| Hydrogen Cyanide | C3H8O | 1000ppm | 0ppm |
| Hydrogen | NO | 25ppm | 10ppm |
| Isopropanol | NO2 | 0.5ppm | 0ppm |
| Nitric Oxide | O3 | 20ppm | 0ppm |
| Nitrogen Dioxide | SO2 | 0ppm | 0ppm |
| Ozone | |||
| Sulphur Dioxide |
2411261442_Amphenol-PS1-O2-25-_C5711028.pdf
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