Extractive Laser Gas Analysis System KGD - MQ - 503 Product Introduction This system is designed for working conditions with high dust
content in the sample gas. It consists of four parts: a sampling
probe, a pretreatment unit, a control unit, and a gas analysis
unit. The system adopts a transmissive design based on Tunable
Diode Laser Absorption Spectroscopy (TDLAS) technology, which can
continuously and real - time reflect the concentration of the
measured gas. This is beneficial for improving the utilization
efficiency of gas, saving energy and reducing consumption, and
ensuring safe production in industrial sites.
Product Features - Explosion - proof grade: Ex db IIC T6 Gb / Ex tb IIIC T80℃ Db, with
a high safety factor.
- The probe has an automatic purging function, with reliable
performance and a long service life.
- It can automatically complete operations such as sampling, back -
flushing, and drainage.
- Multi - stage filtration ensures long - term on - line operation of
the instrument.
- Using TDLAS technology, the measured gas is not affected by cross -
interference from background gases.
- It can achieve remote monitoring, eliminating the need for manual
on - site operation and reducing maintenance costs.
- It has good adaptability in harsh measurement environments such as
high temperature, high dust, high moisture, high corrosion, and
high flow velocity.
Technical Parameters Items | Details | Measured Components | H₂S, O₂, CO, CO₂, CH₄ | Measurement Principle | TDLAS | Test Range | H₂S: 0 - 100ppm, 0 - 5000ppm | O₂: (0 - 5) %VOL (Can be customized to 100%) | CO: (0 - 100) %VOL | CO₂: (0 - 100) %VOL | CH₄: (0 - 20) %VOL | Accuracy | ≤ ±1%F.S. | Repeatability | ≤ ±1% | Span Drift | ≤ ±1%F.S. | Resolution | 0.01%VOL | Operating Parameters | | Explosion - proof Grade | Ex db IIC T6 Gb / Ex tb IIIC T80℃ Db | Ambient Temperature | (-20 - +60)℃ | Operating Power Supply | 220V AC, 50Hz | Operating Gas | (0.3 - 0.8) MPa Industrial Nitrogen | Interface Signal | | Communication | RS485, RS232 | Output Mode | 2 - way 4 - 20mA output | 3 - way relay output |
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