Product Details
In - situ Laser Process Gas Analyzer (Transmissive Type) KGD - MQ -
507 for Measuring Gas Concentration
Product Introduction
The KGD - MQ - 507 In - situ Laser Process Gas Analyzer is a high -
performance optical analysis instrument based on Tunable Diode
Laser Absorption Spectroscopy (TDLAS) technology. It adopts a
transmissive design and can be used for industrial process gas
control. With a fast response time, which is generally calculated
in seconds for in - situ measurement, it avoids the time delay
caused by sampling - type measurement and can promptly reflect the
concentration of the measured gas on - line.
Product Features
- Using TDLAS technology, the measured gas is not affected by cross -
interference from background gases.
- In - situ installation, no sampling pretreatment system is
required.
- Fast response (T90 ≤ 1s), which can reflect gas concentration in
real - time.
- Real - time on - line measurement, with less distortion of gas
concentration and high measurement accuracy.
- Has good adaptability in harsh measurement environments such as
high temperature, high dust, high moisture, high corrosion, and
high flow velocity.
- Explosion - proof and flame - proof design, with a high safety
factor.
- Simple structure, no moving parts, no consumable parts, and
maintenance - free.
Technical Parameters
Performance Parameters |
Measured Components | H₂S, O₂, CO, CO₂, CH₄ |
Measurement Principle | TDLAS |
Installation Method | In - situ Installation |
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 |
Response Time | T90 ≤ 1s |
Operating Parameters |
Explosion - proof Grade | Ex db IIC T6 Gb / Ex tb IIIC T80℃ Db |
Ambient Temperature | (-20 - +60)℃ |
Operating Power Supply | 24V DC, 24W |
Purge Gas | (0.3 - 0.8) MPa Industrial Nitrogen |
Interface Signal | 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.