Product introduction
1. High-resolution nitric oxide sensor (NO sensor) NO-B4 NO-B4+ product description:
The NO-B4 sensor is a PPB sensor designed for environmental air quality applications with excellent baseline stability. This product is available in our standard format NO-B4and with our patented integrated smart technology (NO-B4+), which integrates an IST board with memory chip and temperature sensor into the sensor.Specific calibration, specification, and identification data are stored on each sensor, allowing plug-and-play operation. The onboard temperature sensor improves the accuracy and simplicity of temperature compensation algorithms.
2. Main parameters of nitric oxide sensor (NO sensor) NO-B4:
| Sensitivity |
500-850nA/ppm |
| Response time |
< 45S |
| Zero current |
30-200nA |
| Range |
20ppm |
| Overload |
50ppm |
3. Typical applications of nitric oxide sensor (NO sensor) NO-B4:
Trace nitric oxide monitoring in air quality, nitric oxide gas transmitters
High-resolution nitric oxide sensor (NO sensor) NO-B4 NO-B4+ dimensions:
4. Performance of high-resolution nitric oxide sensor (NO sensor) NO-B4:
| Sensitivity | 2ppmNO，nA/ppm | 500~850 |
| Response time | t90 from zero to 5ppm NO (s) | <45 |
| Zero current | In zero air at 20℃ (nA) | 30~200 |
| Noise | Average noise (ppb) | 15 |
| Detection limit | ppb | 15 |
| Range | NO warranty detection range (ppm) | 20 |
| Linearity | Full-scale ppm error, linear at 0-5ppm | <±1 |
| Overload | ppm for stable response to gas pulses | 50 |
5. Lifespan of high-resolution nitric oxide sensor (NO sensor) NO-B4:
| Zero drift | ppb change per year in laboratory air | 0~50 |
| Sensitivity drift | Percentage change per year in laboratory air, monthly test | 0~-20 |
| Operating life |
Months until output drops to 50% of original signal (24 months guaranteed)
|
>24 |
6. Environment of high-resolution nitric oxide sensor (NO sensor) NO-B4:
| Sensitivity at -20°C | At 2ppm NO, (output at -20°C / output at 20°C) % | 60~90 |
| Sensitivity at 40°C | At 2ppm NO, (output at 40°C / output at 20°C) % | 97~110 |
| Zero at -20°C | ppm change relative to 20°C | 0~30 |
| Zero at 40°C | ppm change relative to 20°C | 100~200 |
7. Cross sensitivity of high-resolution nitric oxide sensor (NO sensor) NO-B4:
| H2S |
Percentage sensitivity to measured gas at 5ppm H2S (after 3 minutes)
|
<10 |
| Cl2 |
Percentage sensitivity to measured gas at 5ppm Cl2
|
<3 |
| NO2 | Percentage sensitivity to measured gas at 5ppm NO2 (after 3 minutes) | <4 |
| SO2 | Percentage sensitivity to measured gas at 5ppm SO2 | <5 |
| CO | Percentage sensitivity to measured gas at 5ppm CO | <0.3 |
| H2 | Percentage sensitivity to measured gas at 100ppm H2 | <0.1 |
| NH3 | Percentage sensitivity to measured gas at 5ppm NH3 | <0.1 |
| CO2 | Percentage sensitivity to measured gas at 5% CO2 | <0.1 |
| O3 | Percentage sensitivity to measured gas at 100ppb O3 | <4 |
| Halothane | Percentage sensitivity to measured gas at 100ppm halothane | <0.1 |
8. Key parameters of high-resolution nitric oxide sensor (NO sensor) NO-B4:
| Bias voltage | mV (working electrode potential relative to reference electrode) | +200 |
| Temperature range | ℃ | -30~40 |
| Pressure range | Kpa | 80-120 |
| Humidity range |
Continuous relative humidity percentage
|
15-85 |
| Storage life | Sealed storage life at 3-20℃ (months) | 6 |
| Load resistor | Ω (recommended) | 33-100 |
| Weight | grams | <13 |
High-resolution nitric oxide sensor (NO sensor) NO-B4 NO-B4+ IST board data:
9.High-resolution nitric oxide sensor (NO sensor) NO-B4Compatible sensor board:
Unique sensor board (ISB) Alphasense B4 4-electrode gas sensor - ISB
This sensor board (ISB) is used for Alphasense B4 series 4-electrode gas sensors. The regulator provides dual-channel voltage output.
A low-noise bandgap provides bias voltage to the NO sensor, while the ISB can measure oxidizing (CO, H2S, SO2, and NO) and reducing (O3 and NO2) gases.
The ISB is configured in four versions for specific sensors: NO, NO2, O3, and CO/H2S/SO2.
