Product Details
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 |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.