Fourier transform infrared gas analyzer

STEP-001AFourier transform infrared gas analyzerApplication scenarios:

Smoke emission detection (analysis of SO2, NOx, CO, O2)

Detection of desulfurization process (analysis of SO2 and O2)

Denitrification process detection (analysis of NOx, NH3, O2)

Detection of flue gas emissions from garbage incineration (analysis of SO2, NOx, CO, O2)

Motor vehicle exhaust emission testing (analysis of NO, NO2, CO, CO2, HC)

Especially suitable for environmental monitoring, law enforcement, and comparison; Smoke emission units conduct self-monitoring and third-party organizations commission testing.

STEP-001AFourier transform infrared gas analyzerProduct Features:

1) UV part

SO2 and NOx are measured using ultraviolet differential spectroscopy. Compared with traditional NDIR, the measurement accuracy is not affected by moisture and dust, and there is basically no zero drift.

Directly measure NO2 without the need for a NOx converter.

Using a high-resolution spectrometer for spectral analysis has a low detection limit.

The instrument has high internal temperature control accuracy and good environmental adaptability.

The light source adopts a highly stable deuterium lamp, and the instrument has good stability.

No optical moving parts, no cutting wheel, filtering wheel, interferometer and other optical moving parts, high reliability.

Modular design is adopted for light sources, spectrometers, core circuits, gas chambers, oxygen sensors, etc., with high reliability, good scalability, and easy maintenance.

2) Infrared part

Adopting single beam dual wavelength technology, compared with traditional NDIR, there is no need for filter wheels, and the system is stable and reliable.

Using multiple reflection chambers results in a low detection limit for the instrument.

The instrument has high internal temperature control accuracy and good environmental adaptability.

The light source adopts MEMS infrared radiation light source, and electrical modulation does not require a chopper wheel.

No optical moving parts, no cutting wheel, filtering wheel, interferometer and other optical moving parts, high reliability.

Modular design is adopted for the light source, core circuit, gas chamber, oxygen sensor, temperature control unit, etc., with high reliability, good scalability, and easy maintenance.

● Technical parameters:

SO2 measurement range: (0-100-2000) mg/m3

NO measurement range: (0-100-2000) mg/m3

NO2 measurement range: (0-100-2000) mg/m3

CO measurement range: (0-1000-50000) mg/m3

CO2 measurement range: (0-25-50)%

CH4 measurement range: (0-3500-35000) mg/m3

O2 range: (0-25)%

Detection limit ≤ 1% F.S

Indication error ≤ 2% F.S

Repeatability not exceeding 2%

Stability not exceeding 2%

Maximum flow rate 2L/min

1 hour zero drift not exceeding ± 2% FS

1 hour range drift not exceeding ± 2% FS

Response time not exceeding 35s 1L/min

The impact of environmental temperature changes shall not exceed ± 2% F.S

The impact of changes in power supply voltage shall not exceed ± 0.5% F.S

Interference component influence: UV: not exceeding ± 1% F.S; Infrared: CO, CO2 not exceeding ± 2% F.S; CH4 not exceeding ± 5% F.S

Parallelism ≤ 2%

Load error not exceeding ± 2%

Accuracy: When the mean emission concentration is ≥ 250 μ mol/mol, the relative accuracy is ≤ 5%;

When ≥ 50 μ mol/mol to ＜ 250 μ mol/mol, the absolute error is ≤ 6 μ mol/mol

When ≥ 20 μ mol/mol~<50 μ mol/mol, the relative error is ≤ 10%

When<20 μ mol/mol, the absolute error is ≤ 2 μ mol/mol

O2 accuracy: relative accuracy ≤ 5%

Sampling tube heating temperature>120 ℃, maximum 200 ℃

Sample delivery pipeline heating temperature>120 ℃, maximum 200 ℃

Working temperature range: (-20~50) ℃

Environmental humidity ≤ 98%

Power supply/power: 220VAC ± 10%, 300W

Preheating time ≤ 30 minutes