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TE Instruments
Xplorer TN/NS

// Xplorer-NS Key features:    
• Compact design
• TE Instruments software (TEIS)
• Short start-up time (less than 15 minutes)
• Fast an precise measurement of solids, liquids, LPG's and gas
• Easy to use and intuitive user interface
• Simultaneous analysis of Nitrogen and Sulphur
• Optional, compact, stackable solids autosampler for high sample throughput
• Optional 105 or 210 positions, 2ml vial XYZ auto sampler for liquid samples
• Auto dilution, auto calibration standards generation
• Optional gas and LPG auto sampler
• Ultra low detection limit, high stability and reliability
• Low maintenance, optimal combustion results in near to zero downtime
• Fast and easy switching between modules, resulting in high productivity
• ASTM, ISO, IP and related international standards compliance

Full range Total Nitrogen, Total Sulphur instrument for the modern Laboratory.

TE Instruments has developed the Xplorer-NS, a Total Nitrogen and Total Sulphur combustion analyzer, offering fast, accurate and precise
analysis of liquids, LPG's, gas and solids. This brand new model is designed to offer standardized and customized solutions to match both current and future analytical needs, ranging from low ppb's to high ppm's.

High Performance and High Throughput out of a small footprint

The Xplorer series is capable of handling all sorts of samples and applications. The TN/TS combustion analyzer handles liquids, solids, liquefied gas and gas samples. Changing from the liquids & gas mode to solids was never easier. Just push one button and the liquids & gas module is automatically retracted from the hot area. No clamps or manual locking. It will take about 45 seconds to change into the solids mode. Simply choose the pre-loaded sample list and run.
Manual or Robotics
There is still a choice as to how you'd like to run your samples. 24/7 or just a couple of samples a day.

For manual liquids there is an integrated automatic syringe driver. It offers full control over the desired volume and speed of injection.

For manual solids introduction, there is an integrated software controlled boat drive. Both features do come standard with every Xplorer.

If the choice is full automation, a robotic XYZ autosampler, ARCHIE-105, handles all liquids. The ARCHIE-105 allows direct injection either
by boat or vaporizer.

For LPG's and Gas there is a revolutionary, fully automated sampler, GLS. It can run as a stand-alone, method driven, gas sampler, using a touch screen as user interface.

Connected to the powerful TEIS software it simply runs in slave mode to the XPLORER. Just run your sample list and the liquefied gas or gas sampling is in full control.

Automatic handling of solid samples can be executed by the NEWTON 20 autosampler. It handles sample cups for various applications. No matter what choice you make: every bench marking design feature, enhances the overall quality, saves time and significantly reduces the need for spare parts.

Compliance and Regulations
Our instruments comply with the following international standards for:
  Total Sulphur ASTM D5453
    ASTM D6667
    ASTM D7183
  Total Nitrogen ASTM D4629
    ASTM D5762
    ASTM D6069
    ASTM D7184

Meeting the toughest Standards and Regulations  
Regulatory bodies all over the world have set challenging low levels of allowed Sulphur concentration in organic fuels for the present and near future. Beside Sulphur, the Nitrogen content in fuels is attracting a lot of attention, in order to protect the environment.

Knowing the exact concentration of Sulphur and Nitrogen in a certain feeds, has always been very important for the production processes in
the refineries. For example: catalysts in refinery processes lose their efficiency by catalyst poisoning. Main compounds to blame
are Sulphur and Nitrogen.

Hence, refineries need to monitor and control the Total Nitrogen and Total Sulphur content in the feedstock. This is the only way to tune the processes at the highest stage of efficiency.

Reference Methodology  
The Xplorer-NS measures Sulphur and Nitrogen simultaneously, creating valuable information about the sample in a single run. With its low
detection limit it is possible to measure the Total Nitrogen and Total Sulphur concentrations at low ppb level.

Sample combustion at high temperature and chemiluminescence- and UV-fluorescence detection are reference methods for the determination of
Total Nitrogen and Total Sulphur.

The methodology fully complies with the international standards, like ASTM, ISO, IP, etc.

Industrial Applications    
LPG and gases Chemicals: Refinery products:

  • Acetic Acid
  • Polypropylene & ethylene
  • Polycarbonate
  • Aromatics
  • Resins
  • Olefins and paraffins
  • Crude oil
  • Kerosene
  • Fuel oil
  • Gasoline
  • Diesel fuel
  • Catalyst
  • Naphta
  • Lubricants
Solution provider for the following industries:    

  • Surveyor laboratories
  • Chemical laboratories
  • Petrochemical laboratories
  • Governmental Institutes and Research Facilities
  • Universities

How does it work?

Samples are introduced, with the appropriate introduction module, into a furnace, where they are oxidized. After a complete combustion, nitric oxide (NO) and Sulphur dioxide (S02) are formed and led into the serial connected reaction chambers after the water has been removed.
Nitrogen detection:

Added electronically generated ozone reacts with the nitric oxide, and nitrogen dioxide in an excited state (N02*) is formed in the reaction chamber.

The excited N0
2 luminesces light as it reverts to a lower energy state. The emitted light is detected by a Photomultiplier Tube (PMT). The amount of detected emitted light, corresponds with the amount of NO.

This in turn represents the amount of total nitrogen present in the sample.
  Sulphur detection:

Sulphur is measured by pulsed UV-fluorescence. Sulphur dioxide (S02) is formed during the oxidation and is transferred to the reaction chamber. Here it is excited by a pulsed UV source and as the excited state is unstable, the excited S02 instantly decays to its ground state energy level. During this process, UV light is emitted. As this light has a different wavelength than the original UV source, the photomultiplier tube is able to detect this emission.

The amount of light emitted reflects the total amount of S02 present in the gas, which in turn corresponds to the total amount of Sulphur in the sample.

  Xplorer System Specification  
  Dimensions (W x H x D) 40 x 28 x 70cm (15.7 x 11 x 27.6 inch)
  Weight 34kg (74,8Ibs)
  Voltage 100-240 V, 50-60 Hz
  Power requirement (max) 1150 W
  Gas connector 1/8" Swagelok
  Gases Oxygen 99.6 % (2.6), Argon 99.998 % (4.8)
  Input gas pressure 3-10 bar
  Internal gas pressure 1.8 bar, adjustable
  Furnace voltage Dual zone, low voltage
  Furnace temp. (max) 1150 °C (2102 °F)
  Furnace cooling Pulling Fan, auto control
  Sample introduction: tlqulds direct injection, Solids by boat, Gas by GLS module
  Sample size: Solids: 5-1000mg; Liquids: 100 uL; Gas: 10 mL; LPG: 100 uL;
  Semi-automatice boat/syringe driver: Software controlled, adjustable method file
  Slider/shutter driver Software controlled, adjustable
  Detector Sulphur Xenon Pulsed UV-fluorescence AFC technology
  Detector Nitrogen Chemiluminescence
  Detector accuracy Better than 2% CV
  Detector conditioning Temperature controlled, adjustable
  Vacuum pump Internal 24 Volt DC
  Software dot. NET-based, TEIS software
  Ambient temperature 5-35 °C (41-95 °F) non condensing

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