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Siloxane Monitoring System (Ei2300)

Precise on-site measurement of siloxanes in biogas, RNG and Natural Gas

Available for Download

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.

Product Details

Siloxane Monitoring System (Ei2300) Features

  • Two-fold Matrix Separation
  • Gas Chromatograph
  • Ion Mobility Spectrometer (IMS)
  • Precise Measurements
  • Easy to Operate
  • No Analytical Specialist Needed
  • Now supported by a published ASTM Standard, D8455


Hazardous Rated Enclosure
  • Purged
  • Class 1, Division 2
Side Mounted Air Conditioning Unit
  • Standard
  • Class 1, Division 2
Remote Access Hardware
  • Cellular Service
  • Secure Cradle Point


Wall Mount

Siloxane Monitoring System (Ei2300) Technical 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

Typical Applications for Siloxane Monitoring System (Ei2300)

  • Wastewater Treatment Plants
  • RNG Interconnection Rules Compliance
  • Landfills
  • Dairy Farms
  • Hog and Pig Farms
  • Food Waste Digesters (co-digestion)
  • Others

Available Measurements for Siloxane Monitoring System (Ei2300)

  • Siloxanes

Related Products

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