Gas analyzers
SIRA CH₄ Low
The SIRA CH4 low is a stationary indoor analyzer for real-time measurement of methane in low ppm concentrations in exhaust gases.
The methane concentration is determined using an infrared Herriott cell. Due to the new EU methane regulation, the measurement of methane in exhaust gases is becoming increasingly important.
With the SIRA CH4 low, this methane content can be determined reliably and quickly in various exhaust gases. With its adjustable measurement frequency, extensive customization options, and virtually maintenance-free design, the SIRA CH4 low offers exceptional versatility and reliability.
| Parameter | Value |
|---|---|
| Operating Temperature | 0–40 °C |
| Atmospheric Pressure | 860–1160 mbar |
| Relative Humidity | 5–95%, non-condensing |
| Supply Voltage | 115–240 V AC |
| Monitored Substances | Methane (CH4) |
| Measurement Range | 0–5000 ppm (higher concentrations available on request) |
| Maximum Measurement Error | 10 ppm or 5% of the measured value (whichever is greater) |
| Repeatability (Standard Deviation) | < 1/5 of the error tolerance |
| Analysis Time | < 3 min |
| Recommended Calibration Interval | 12 months |
The SIRA product series in comparison
SIRA UV THT
Continuous measurement
of the odorant gas concentration
SIRA UV VOC
Measurement of volatile organic compounds (VOCs)
SIRA ROA Premix
Analysis of the residual oxygen content
SIRA CH₄ Low
Continuous measurement
of methane in exhaust gases
Industry applications
These products can be used in the following sectors.
Iron and steel production
Our appliance series have been used in iron and steel production for many decades.
Biogas
Union Instruments products have proven themselves extensively in biogas upgrading plants.
Petrochemicals and refineries
We produce customized and flexible measurement technology solutions for the petrochemical industry and refineries.
Glass and ceramics
Perfectly coordinated appliance technology for glass and ceramic applications that works both safely and economically.
Natural gas
Our INCA multi-gas analyzers provide efficient solutions for processes in natural gas plants.
Generating energy from waste
Our appliance technology makes an important contribution to the functionality of environmentally friendly and energy-saving system concepts.
Service
We clarify administrative and commercial issues for you.
+49 721 680381-30
Support
You can open a support ticket for technical support for your product.
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Distribution
We prepare quotations for you, clarify questions about invoicing and manage your maintenance contract.
+49 721 680381-20
Downloads
Here you will find various downloads to support you.
Brochures, data sheets and application reports – we have all the relevant information for you here.
Industries
Our key application areas at a glance.
We supply a wide range of industrial plants such as steel production, the natural gas industry and biogas producers.
Products
Special products for your industrial application.
Our range includes the INCA, CWD and SIRA product series and the CAM module – combined with top advice and service.