IROX DIESEL Analyzer

		IROX Diesel Analyzer

Portable Diesel Analysis with mid-FTIR

IROX Diesel is a Mid-FTIR analyzer dedicated to Diesel analysis: With a different spectrometer cell, its own on-board software and a vast calibration library handling is as easy as with the gasoline unit. This instrument also uses an improved calculation model, based on Cluster analysis and MLR for the determination of the key properties of diesel fuel such as Cetane Number, Cetane Index and Distillation Properties. Fast and easy on-site custom calibration can be achieved by adding a new sample in less than 4 minutes. An excellent spectral resolution ensures results with highest precision in less than 3 minutes. IROX DIESEL has been upgraded for a new application: the determination of the FAME (Biodiesel) content in Diesel Fuel (EN 14078).

NEW APPLICATION: DETERMINATION OF FAME (BIODIESEL) IN DIESEL FUEL (EN 14078)

IROX-Diesel has been upgraded to determine the content of mono-alkyl esters of long chain fatty acids (or FAME/Biodiesel) in a mixture with normal diesel fuel.
FAME (Biodiesel) is produced out of vegetable oils like rape seed and soy bean, mixed with methanol and a catalyst to accelerate the reaction to form fatty acid alkyl esters.

Low concentrations of FAME (Biodiesel) in diesel fuel (≤9%m) show a strong absorbance peak at 1745 cm-1 in the IR-spectrum while higher concentrations (9 to 40%m) produce a weaker signal response at 1195 cm-1. This allows accurate measurement of the content of FAME (Biodiesel) by calculating the second derivative of these parts of the IR-spectrum. The revised method and software modifications also resulted in a significantly improved precision for the determination of the Cetane Improver, Polynuclear Aromatics (PAH), Cetane Number and Cetane Index: calculating the second derivative of the additional peaks of Cetane Improver and PAH resulted in measurement data with an increased accuracy compared to the official methods and better repeatability.

IROX DIESEL is factory calibrated for the determination of FAME (Biodiesel) in Diesel Fuel: depending on the concentration range, two typical absorption peaks in the IR-spectrum are used.

In the lower range (0.2 -> 7.0%v): the peak at 1745 cm-1
In the higher range (7.0 -> 30%v): the peak at 1195 cm-1
Recalibration with known standards is easy and the calibration constants are calculated automatically.

		IROX Diesel Analyzer

Portable Diesel Analysis with mid-FTIR

Features

Cetane number (correlation to ASTM D613)
Cetane Index (correlation to ASTM D976)
Cetane Improver
Total Aromatics (correlation to ASTM D5186)
FAME (Biodiesel) content in Diesel Fuel (EN 14078)
Polynuclear Aromatics (correlation to ASTM D5186)
Built-In Anton Paar Density Meter to convert the concentration of substances from volume% to mass%
Temperature control
Small sample volume: 7ml
No sample preparation: just insert filling tube in sample bottle and press RUN
Measuring time: 3 minutes
Fully automated: sample introduction, measurement ...
No complex technical training required
Fast and easy on-site calibration of the correlation library in less than 4 minutes/sample
Optional 6-position sampler
PC/printer interface
MINIWIN PC software
Portable for field applications (optional vehicle battery connector)

ONLY 3 MINUTES FOR A COMPLETE DIESEL ANALYSIS

Parameter Range Repeatability Standard Deviation (SD, RMSEC)

Cetane Number 25 - 75 0.8 0.6 - 0.9

Cetane Index 30 - 70 0.4 0.4 - 0.6

Cetane Improver 0 – 5000 ppm - 90 ppm

Total Aromatics 0 – 60 wt. % 0.5 (@25%) 0.4

Poly Nuclear Aromatics 0 – 40 wt. % 0.4 (@5%) 0.3

FAME (Biodiesel) in Diesel Fuel 0 – 40 wt. % - 0.2 (@5 v%), 0.5 (@10 v%)

EN 14078 - FAME (Biodiesel) in Diesel Fuel 0 - 30 v % - 0.3

Distillation Rroperties T85, T90, T95 - -

Density @ Room Temp. 0.500 - 1,999 g/cm3 ±0.001 g/cm3 ±0.0005 g/cm3

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Technical Data
Display
large graphics display, backlit

Warm-Up Time 10 min.

Response Time 3 min.

Communication RS-232 serial port for PC & printer

Power Requirements 100/110/230/240 V AC, 50/60 Hz, 65 W

Field Application 12 V/4A DC (vehicle battery)

W x H x D 200 x 320 x 220 mm (7.9" x 12.6" x 8.7")

Weight 11 kg (24 lb)

Options & Accessories:
Printer and PC recommended, MINIWIN IROX software: results data storage, upload/download spectra of interest, view IR-spectra graphics ...

Principle
Product | Small | IROX Principle The light of an infrared source (1) is collimated by the mirror (2) and is divided into two equivalent beams with the beamsplitter (3). One beam is reflected by the fixed mirror (4) and the second beam is reflected by the scanning mirror (5). Both beams are recombined in the beamsplitter and travel through the measuring cell (6), which is filled with the unknown sample. The combined beam is collimated onto the infrared-detector (8). The two beams can interfere after the beamsplitter and make a constructive interference for all wavelengths if the two path lengths are equal. If the scanning mirror is shifted, constructive interference is possible only for a wavelength which is a multiple of the shift. The intensity on the detector varies like the cosine-Fourier transform of the spectrum. This values are stored for later evaluation. Performing a Fourier-transform of the stored values after the scan, the absorption spectrum of the unknown mixture is evaluated. The concentration of the various components is calculated using a matrix transformation of 962 x 32 points.

Continuous product development may make it necessary to change product specifications without notice.