Description
Gasmet™ DX4000 is a portable FTIR gas analyzer which is typically used in stack emissions monitoring, comparison measurements, catalytic process control and other applications where multiple gas compounds need to be accurately monitored in hot & humid sample gas. The corrosion resistant sample cell is heated to 180 °C, which ensures that the sample stays in gaseous phase even with high concentrations of H2O or corrosive gases.
Gasmet™ DX4000 comes equipped with easy-to-use Calcmet™ software, which can display the concentration results in ppm, mg/Nm3 or Vol-%. All measurement data can be stored for further analysis.
Gasmet™ DX4000 is typically set-up to measure H2O, CO2, CO, NO, NO2, N2O, SO2, NH3, CH4, HCl, HF and different VOC´s. Additional gases can be added without any hardware changes. Measurement ranges can be selected from sub-ppm until vol-% level.
Gasmet™ DX4000 can be supplied with the Gasmet™ portable sampling system. This system utilizes hot-and-wet measurement principle (no drying or dilution), which ensures that the analysis is done with a representative sample. There are two stage particulate filtration: first one in sampling probe (2 µm) and second one in sampling system (0.1 µm).
The portable sampling unit can be optionally equipped with a ZrO2 sensor for accurate oxygen measurement.
Gasmet™ DX4000 has received the coveted MCERTS certification for stack emissions monitoring. There is also VDI 3862 standard for measuring formaldehyde emissions from biogas plants in Germany.
SYSTEM PARTS
- GasmetTM DX4000
- GasmetTM Portable Sampling system
- Portable sampling probe
- Heated lines
- Laptop PC with CalcmetTM software
- Power connection standard plug CEE-22
- Optional analog signals in external PC: ADAM 5000/TCP module (for analog inputs, outputs, relays)
- Optional wheeled cart for the analyzer and laptop computer
KEY ADVANTAGES
- Easily configurable application for new gas components
- Post-measurement data processing tools are unique to Gasmet
- Wide range of applications
AREAS OF APPLICATION
- Stack testing according to USEPA methods 320 and 321 or European standards
- Process monitoring
- Formaldehyde emissions monitoring from biogas plants: VDI 3862 Blatt 8:2014-01
- Stack testing according to British Technical Guidance note M22: Measuring stack gas emissions using FTIR instruments, Environment Agency, Version 3, March 2012
- Reduction of greenhouse gas emissions by cattle -research
Technical Data
DX4000 FTIR Gas Analyzer
| General parameters |
| Measuring principle: |
Fourier transform infrared, FTIR |
| Performance: |
Simultaneous analysis of up to 50 gas compounds |
| Response time, T90: |
Typically < 120 s, depending on the gas flow and measurement time |
| Operating temperature: |
Short term 0 – 40°C
long term 5 – 30°C
non-condensing |
| Storage temperature: |
-20 – 60°C, non-condensing |
| Power supply: |
100-115 or 230 V / 50 -60 Hz |
| Power consumption: |
Average 150 W, maximum 300 W |
| Spectrometer |
| Resolution: |
8 cm-1 or 4 cm-1 |
| Scan frequency: |
10 scans / s |
| Detector: |
Peltier cooled MCT |
| Source: |
SiC, 1550 K |
| Beamsplitter: |
ZnSe |
| Window material: |
ZnSe |
| Wave number range: |
900 – 4 200 cm-1 |
| Sample cell |
| Structure: |
Multi-pass, fixed path length 5.0 m |
| Material: |
100 % rhodium coated aluminium |
| Mirrors: |
Fixed, protected gold coating |
| Volume: |
0.4 liters |
| Connectors: |
Inlet Swagelok 6 mm
Outlet Swagelok 8 mm |
| Gaskets |
Viton® O-rings |
| Temperature: |
180 °C, maximum |
| Window material: |
BaF2 |
| Measuring parameters |
| Zero point calibration: |
24 hours, calibration with nitrogen
(4.0 or higher N2 recommended) |
| Zero point drift: |
< 2 % of measuring range per zero point calibration interval |
| Sensitivity drift: |
None |
| Linearity deviation: |
< 2 % of measuring range |
| Temperature drifts: |
< 2 % of measuring range per 10 K temperature change |
| Pressure influence: |
1 % change of measuring value for 1 % sample pressure change. Ambient pressure changes measured and compensated |
| Electrical connectors |
| Digital interface: |
9-pole D-connector for RS-232
Analyzer is connected to an external computer via RS-232C cable. The external computer controls Gasmet.
Remote control connection for Portable sampling unit |
| Power connection: |
Standard plug CEE-22 |
| PSS connection: |
Remote connection of PSS (Portable Sampling System) |
| Gas inlet and outlet conditions |
| Gas temperature: |
Non-condensing, the sample gas temperature should be the same as the sample cell temperature |
| Flow rate: |
120 – 600 liters per hour |
| Gas filtration: |
Filtration of particulates (2 µm) required |
| Sample gas pressure: |
Ambient |
| Sample pump: |
External, not included |
| Electronics |
| A/D converter: |
Dynamic range 95 dB
32-bit floating point DSP |
| Signal processor: |
120 MFLOPS speed |
| Computer: |
External, not included |
| Analysis software (for external PC) |
| Operating system: |
Windows XP |
| Analysis software: |
Calcmet for Windows |
| Options |
| Sample cell: |
Multi-pass, fixed path length 2.5 m or 9.8 m |
| Pressure measurement: |
Inside sample cell |
| Analog signals (ext PC): |
ADAM 5000/TCP module (for analog inputs, outputs, relays) |
| Sample cell gaskets: |
Teflon® coated Viton® or Kalrez® |
| Trolley: |
Wheeled cart for the analyzer and laptop computer |
| Enclosure |
| Material: |
Aluminium |
| Dimensions (mm): |
390 * 445 * 164 |
| Weight: |
13.9 kg |
| CE label: |
According to EMI guideline 89/336/EC |
Gasmet Technologies Oy shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided “as is” without warranty of any kind and is subject to change without notice. Should you find any errors, we would appreciate if you notified us.
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