For safe, fast and reliable handling of gas and LPG samples

ATOM offers tools and accessories to meet the growing challenging needs and demands of the analytical world. The ATOM EIM-1000 External Injection Module is built for safe, fast and reliable handling of gas and LPG samples with seamless integration to the ATOM XT-2000 laboratory total sulfur – total nitrogen analyzer. The efficient and compact design reduces required benchtop space to a minimum, while allowing easy access to internal module components.

The EIM-1000 combined with the XT-2000 laboratory total sulfur – total nitrogen analyzer provides unmatched analytical performance making it suitable for a wide variety of applications and industries.


  • Accurate and precise sample handling
  • XYZ-axis vectorized movement
  • Fully servomotor controlled
  • Full integration with XT-2000 software
  • Safe operations
  • No additional benchtop space required
  • Large sample capacity: 162 Vials of 2 mL per tray holder with up to 2 trays holders
  • Syringe protection with missing vial detection
  • Optimized movement for highest sample analysis rate
  • Highly reproducible injection
  • Faster analysis for higher throughput


D4629 – Standard Test Method for Trace Nitrogen in Liquid Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence Detection

D5453 – Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence


The EIM-1000 is available as either a lower pressure version (500 psi/35 bar) with flow meter for applications requiring verified sample flow or high- pressure sight glass version (1,000 psi/70 bar) for applications where extended sample pressures are required. The proprietary EIM-1000 sample transfer system ensures a low reactivity path for efficient transfer for optimal analytical measurement.


The EIM-1000 can be used for both gas and LPG samples. Conveniently located valves and flowmeters allows users to adjust sample flow rate* for consistent sampling. The EIM-1000 incorporates the capability to provide pad pressure for sample cylinders to maintain compositional integrity of the product.


  • Relief valves ensure equipment integrity and operator safety
  • Sample vent to allow discharge of unused product before removing samples
  • All 24 VDC system to minimize electrical risks
  • Heating elements below T3 temperature  rating, typical of hydrocarbon autoignition temperature
  • Electric valves to reduce instrument air usage


The EIM-1000 operation is fully integrated with the XT-2000 lab analyzer and managed directly through the Laboratory User Interface (LUI). The LUI software operates the electrically actuated gas and LPG valves independently while giving users full control over the analyzer operations.

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ATOM Instrument 
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Suite 180
Houston, TX 77032

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