ASTM D2500 - ASTM D5771 - ASTM D5772 - ASTM D5773
IP 219 - IP 444 - IP 445 - IP 446
Determination of Cloud Point of hydrocarbon products, diesel, gasoil, completely on line, full automatically, extremely accurately and fast with the New-on-line 100.
The New-on-line 100, making part of the new generation of on-line process analysers, determines Cloud Point on hydrocarbon products, diesel, gasoil, in correlation to the norms, while guaranteeing:
Perennity: conceived in order to have a raised longevity thanks to the good quality of the mechanical, electric and electronic components used for its manufacturing.
Simplicity: a modular architecture of design.
Supervision: accessible by Ethernet network on site or by safe remotely connection made by Internet.
Access for user and/or manufacturer
Conviviality: with a clear and didactic graphic interface.
This design brings a maintainability never reached on these analysers and in particular on the Cloud Point Analysers which don’t require a particular maintenance. New-on-line 100 determines the Cloud Point in correlation to the ASTM, IP, ISO, DIN standards by using technologies of on-line processes. With a reduced time of analysis (lower than 10 minutes) it allows a constant control in real time of the lines of production. The management of the analyser is completely automatic thanks to the dedicated software which allows the user to supervise and visualize all the parameters referred to the analysis in progress.
Determination of cloud point is made by detection of light pulsed emission, on I.R. spectrum through a coaxial fibber optic. The dispersion of the light is caused by the crystallization of paraffins. These last, in phase of cooling of the sample, disperse and absorb the light. The analyser, by means of the Lin-Tech software, observes and manages the phenomenon. As soon as the result is obtained, the cell is emptied automatically and a new cycle of analysis starts.
This analyser consists a pressurised enclosure, EEx p for zone 1 and 2, with a CENELEC, ATEX certification and different accessories fixed on both sides of the enclosure.
The protecting system and some EEx d boxes are fixed on the left side, and the analytical part fixed on the right side.
In the upper part of the enclosure accessible with a door supporting a flat screen, are enclosed, the PC, the electronic, the interfaces and the interlock with the terminals.
This analyser is supplied with some components for the sample conditioning procedure. In option, a complete sampling conditioning system dedicated to a user application can be supplied.
This analyser has been designed to follow the reference standards methods.
The analytical cell is cooled down with Peltier elements.
This type of analyser has a main application in production unit where the sample composition does not change rapidly in a short period of time.
Principle of Detection
The detection consists of an emission of a pulsed light signal, sent through a coaxial fibber optic.
The position of the fibber optic allows the system to look to the appearance of the crystals into the test tube.
The internal diameter of the test tube is 4 mm.
A signal is collected on the other side of the test tube and send back to the receptor via the fibber optic.
The signal is recorded and after mathematical treatment, the value of the temperature of the Cloud Point is displayed. Due to the dynamical calculation, the colour of the sample has no effect on the detection.
Procedure of Analysis
The application software proceeds to the draining first, by flushing the sample to the drain.
This operation takes a few seconds.
The second step is to fill the test tube on a time basis.
When the time of filling is elapsed, a seconde draining procedure can be done if necessary.
Then the analysis is started.
All this procedure of draining and filing takes 5 to 20 seconds depending on the selection made in the set-up software.
The analysis time will takes 4 to 6 minutes.
The user can select the mode of analysis and also can do alternatively both methods.
The analyser can select a reference sample from one external drum to proceed to the validation of the analyser himself, before to start the analysis on the product line.
This type of analyser is specially designed for production unit where the results have to has close as possible of the ASTM reference result from the laboratory.
Cloud Point on petroleum products according to the standards reference methods
Temperature in degree Celsius
Measuring span –60°C to +60°C
flow 10 to 20 l/h (in drain status)
consumption 2 … 4 l/h (according number of analysis)
pressure 0,3 – 0,6 bar
temperature maximum + 40 °C
contamination without solid particle > 10 microns
without presence of acid or solvent
maximum 100 ppm water
without traces of residue
Sampling conditioning items
1 ball valve stainless steel 316L sample input
1 filter 10 micron
1 rotameter stainless steel/glass 0-40 l/h with low flow alarm (contact NO/NC on terminal of the analyser)