The Siloxane Continuous Monitoring System is an independent and fully automated measurement system which has been developed to precisely quantify the concentration of linear siloxanes (L2, L3, L4, and L5), as well as the cyclic siloxanes (D3, D4, D5, and D6) in biogas. The instrument separates compounds in two independent stages, combining the selectivity of a Gas Chromatograph with the extraordinary sensitivity (low ppbv) of an Ion Mobility Spectrometer (IMS). Learn more about siloxanes.
| Specifications | |
|---|---|
| Separation I | GC Retention Time |
| Gas Chromatopgraph (GC) | Isotherm (< 80° C) |
| Capillary Column | 30m |
| Separation II | Drift Time Ion Mobility Spectrometer (TOF-IMS) |
| Ionization | β-radiation – 3H |
| Activity | 300 MBq, below the exemption limit of 1 GBq acc. To EURATOM guideline |
| Detection | Electrometer, Ion Mobility Spectrometer |
| LoD for Siloxanes | One digit ppb |
| Typical Range for Siloxanes | 0 – 1.5 mg/m3 |
| Pneumatics | Two Electronic Pressure Controllers (EPC) for flow stability and GC ramping |
| Sampling | Ambient pressure, Firmware controlled pump plus heated electrical six port valve, Liquid trap (water condensation) optional |
| Purge Gas Requirement | Nitrogen: Quality 5.0 (cylinder or generator) |
| Operation | Manual: 6.4" TFT touchscreen Online Remote Test: User defined intervals |
| Data Storage (Internal) | 16 GB Flash Memory |
| Data Output | USB, 4-20mA, MODBUS (TCP) |
| Ambient Temperature | Operation 0 - 40° C |
| Moisture | Up to 95% non-condensing |
| Power Range | 100 - 240 V AC, 50 - 60 Hz |
| Power Consumption | < 200 Watt |
| Weight | 34 lbs (15.5 kg) |
| Dimensions | 17.7 x 17.1 x 7 in (No Case) 449 x 435 x 177 mm (No Case) |
| Housing | 19:, IP 20 Enclosure, CE Marking |
