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The Silarex multi-gas sensor is one high-end type of multi-gas measurement sensor which based on the infrared absorption technology and comply with the highest standards in accuracy, reliability and efficiency.
Due the consequent use of this optical principle the systems work without abrasion or chemical reactions and are nearly maintenance free.
As basis the IR principle uses the individual absorption spectrum of the gas to be detected and specifies the concentration by the precise quantitative analysis.
Because all measured gases absorb IR radiation in a different spectrum a so called “fingerprint” is given which ensures a selective characterization with less cross sensitivities.
An integrated evaluation electronic delivers finally an easy to use concentration signal and compensates all temperature- and drift effects, which is special good for Gas Emission measurement.
Type :
SILAREXFor gases with very low absorption the SILAREX multi-gas sensor housing will be with gold plated surface to reach the maximum of signal by the IR refelction of the gold surface. And the gas Inlet and Outlet are fitted with gas line connectors to allow perfusion of the SILAREX. Tubing with an internal diameter of 3 mm and external diameter of 5 mm is needed to connect up to the measurement cell. Ensure that tubing is securely attached to the inlet and outlet connectors.
Meanwhile we have equipped SILAREX with heated aluminium Housing to make the stable temperature of sensor, to reduce the fluctuation of measurement date due to the unstable environment temperature, which is special good for Gas Emission measurement.. Also with pressure sensor to reduce the gas flow influence. SILAREX is the right product for all kind of industry stable gas measurement application.
Product Advantages:
Specification SILAREX CO2 25Vol.% CO 1000ppm 340mm (cased) |
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Digital Resolution (@zero) |
CO2 20Vol.% |
0.01Vol.% |
|
CO 1000ppm |
0.1ppm |
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Detection Limit (3sigma) |
CO2 |
0.1%[FS] |
|
CO |
0.5%[FS] |
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Cross Sensitivity |
CO2 to CO |
< 10ppm |
@ 20Vol.% CO2 |
SO2 to CO |
< 10ppm |
@ 100ppm SO2 |
|
NO to CO |
< 10ppm |
@ 100ppm NO |
|
NO2 to CO |
< 10ppm |
@ 100ppm NO2 |
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CH4 to CO |
< 30ppm |
@ 1Vol.% CH4 |
|
CH4 to CO |
< 150ppm |
@ 5Vol.% CH4 |
|
SO2 to CO |
< 25ppm |
@ 500ppm SO2 |
|
SO2 to CO |
< 45ppm |
@ 1000ppm SO2 |
|
NO to CO |
< 40ppm |
@ 1000ppm NO |
Specification SILAREX CO2 20Vol.% NO 2000ppm SO2 1000ppm 340mm (cased) |
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Digital Resolution (@zero) |
CO2 20Vol.%: |
0.01Vol.% |
|
NO 2000ppm |
1ppm |
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SO2 1000ppm |
1ppm |
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Detection Limit (3sigma) |
CO2 |
0.1%[FS] |
|
NO |
1%[FS] |
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SO2 |
1%[FS] |
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Cross Sensitivity |
CO2 to SO2 |
< 10ppm |
@ 20Vol.% CO |
CO2 to NO |
< 20ppm |
@ 20Vol.% CO2 |
|
SO2 to NO |
< 20ppm |
@ 1000ppm SO2 |
|
NO to SO2 |
<2ppm |
@ 1500ppm NO |
|
DP to NO |
< 30ppm |
@ 4.5 ±1°C |
|
DP to SO2 |
< 20ppm |
@ 4.5 ±1°C |
Specification:
Detection Principle |
NDIR (Quad Beam) |
Measuring Range |
See List |
Gas Supply |
Flow |
Dimensions |
See Mechanical Data |
Hose connection |
3mm internal, 5mm outside |
Heated Tem. |
Internal 42°C / SILARIX Cased 45°C |
Response time (T90) |
< 8sec @0.7 l/min (default) |
Repeatability |
≤ ±1 % FS |
Linearity Error |
≤ ±1 % FS ( or ≤ ±1.5 % FS depend on version) |
Stability |
< ±2% [FS] @1000h |
Operating Temp |
0 °C up to 40 °C / SILARIX Cased 45°C |
Storage Temp |
-20 °C up to 60 °C |
Ambient Humidity |
0 % up to 95 % rel. Humidity (Non-condensing) |
Ambient Air Pressure |
800 ... 1150 mbar |
Warm up Time |
< 2 minutes (Cold start) < 30 minutes according to heat isolation and environment Tem. |
Flow |
0.2up to 1,0 L / min (const flow) |
Gas Inlet Tem. |
2 ... +42°C / SILARIX Cased 2..45°C |
Gas Inlet Humidity |
5°C max ±1K (need cooler) |
Diginal Output Signal |
Modbus ASCII RTU TTL |
Operation power |
24 VDC ±0.3V |
Driven Current |
240mA / max 1.5A during Heating |
Power Consumption |
< 800 mW / max 36W during Heating |