Product Details
KGD - WQ - 506 Laser Spectroscopy Engine Emission Analysis System
Product Introduction
The KGD - WQ - 506 Laser Spectroscopy Engine Emission Analysis
System is integrated with a Tunable Diode Laser Absorption
Spectroscopy (TDLAS) high - temperature sensor module. It can
dynamically and accurately measure the volume concentrations of NH₃
and N₂O in engine exhaust samples under high - temperature (190°C)
and high - humidity conditions. It is suitable for type - approval
tests and related research and development tests that comply with
current major vehicle emission standards and the Euro 7 emission
standard.
Product Features
- Adopts TDLAS patented technology, featuring high sensitivity and
strong selectivity.
- The high - temperature - resistant gas chamber design avoids the
condensation loss of NH₃, improving the measurement accuracy and
stability.
- The small - volume multi - pass reflective gas chamber design
enhances the measurement response speed.
Technical Parameters
Gas Component | NH₃ | N₂O |
Measurement Principle | TDLAS | TDLAS |
Minimum Range | 0 - 50 ppm | 0 - 100 ppm |
Maximum Range | 0 - 2000 ppm | 0 - 2000 ppm |
Response Time | T10 - 90 < 2.5s | T10 - 90 < 2.5s |
Accuracy | ≤ ±2.0% MRS or ≤ ±0.3% F.S. | ≤ ±2.0% MRS or ≤ ±0.3% F.S. |
Linearity | Determination coefficient: ≥ 0.998; Standard deviation: ≤ 1% F.S.; | Determination coefficient: ≥ 0.998; Standard deviation: ≤ 1% F.S.; |
Slope: 0.99 - 1.01; Intercept coefficient: ≤ 0.5% F.S. | Slope: 0.99 - 1.01; Intercept coefficient: ≤ 0.5% F.S. |
Repeatability | ≤ ±0.5% F.S. | ≤ ±0.5% F.S. |
Drift | ≤ ±1% F.S./8h | ≤ ±1% F.S./8h |
Operating Environment | Ambient temperature: 5 - 40°C; Relative humidity: ≤ 80%RH | Ambient temperature: 5 - 40°C; Relative humidity: ≤ 80%RH |
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.