Product Details
Portable Infrared Natural Gas Calorific Value Analyzer KGD - MQ -
515
Product Introduction
The Portable Infrared Natural Gas Calorific Value Analyzer KGD - MQ
- 515 adopts non - dispersive infrared (NDIR) gas analysis
technology with independent intellectual property rights. It can
simultaneously measure the calorific values of coal - bed methane
and natural gas, as well as the volume concentrations of multi -
component gases such as CH₄ and CₙHₘ.
Product Features
- Simultaneously measures gas components and calorific values: It can
simultaneously measure the volume concentrations of multi -
component gases such as CH₄ and CₙHₘ, and automatically calculate
and display the calorific values of coal - bed methane and natural
gas, replacing the combustion - type calorific value meter.
- High measurement accuracy: Using non - dispersive infrared gas
analysis technology, there is no cross - interference among multi -
component measured gases. The accuracy of natural gas calorific
value can be ensured by accurately measuring the concentration of
CₙHₘ, and CₙHₘ has no interference on the measurement result of
CH₄.
- Portable body design: Easy to carry, it can meet the needs of both
on - site industrial measurement and laboratory airbag sampling
analysis.
- Simple data management: Automatically stores measurement data, with
query and deletion functions, and can transmit data to the superior
centralized control system through multiple interfaces.
- Intelligent power management: Equipped with a soft - start power
switch to prevent the instrument from operating under low - power
conditions.
- Low cost of use: Compared with gas analysis technologies such as
Orsat and chromatography, the measurement process does not require
disassembly and installation, consumption of chemical reagents,
etc. It is easy to operate and has no consumables.
Technical Parameters
Measured Components | CH₄, CO₂, CₙHₘ*, Calorific Value |
Measurement Principle | NDIR |
Measurement Range | CH₄/CO₂: (0 - 100)%; CₙHₘ: (0 - 10)% |
Linear Error | ±1%F.S. |
Resolution | 0.01% |
Repeatability | ≤ 1% |
Response Time | T90 < 10s (NDIR) |
Optimal Flow Rate | (0.7 - 1.2) L/min |
Inlet Pressure | (2 - 50) kPa |
Gas Requirements | Dust - free, water - free, oil - free |
Electrical Parameters | Electrical Parameters |
Communication | RS - 232 |
Power Supply | Powered by built - in rechargeable lithium - ion battery, with an
external 12.6V charger |
Display | LCD Display |
Functional Configuration | Built - in imported sampling air pump |
Self - diagnosis function available for on - line inspection of
sensor status |
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.