Optional accessories & upgrades
Following items are optional accessories and upgrades to the instrument.
Dual solvent cleaning
A suitable solvent used for cleaning should have the following two main characteristics:
- It should be able to dissolve the sample that was tested, i.e. clean the tube completely
- It should evaporate quickly enough at the bath temperature so that the tube is fully dry after cleaning
If the solvent used does have the ability to dissolve the sample, but does not evaporate quickly enough, a second solvent can be used to rinse out the first solvent, as well as dry the tube. Usually, low boiling solvents are used for this purpose, such as Acetone or MEK.
For measurements close to ambient (± 8°C), an additional cooling circulator is required to create sufficient offset for the temperature control unit. Each bath is fitted with a cooling spiral, to which an external cooling circulator can be easily connected. Complete with tubing and fittings.
Duplo measurement tubes
The optional duplo measurement configuration adds another array of optical detections to the instrument, bringing the total number of detection points to three per tube instead of two. Together with adapted S-flow IV tubes, which are fitted with two measuring trajectories, this enables the S-flow IV+ to perform duplo measurements with a single sample injection, increasing productivity, saving even more on solvent consumption and run time.
Omnitek S-flow IV+ operate on clean and dry 5 bar @ 5 l/min of compressed air. A suitable compressor can be supply from Omnitek if no compressed air is available.
Positive - displacement pipette
Air-displacement pipette is supplied with S-flow IV+ as a standard. It is recommended to use positive displacement pipette especially at higher viscosities (300 mm2/s and above) to avoid operator errors and for more accurate and repeatable injections.
Omnitek S-flow IV+ utilizes advanced and easy to use multi-lingual software, it can be operated directly from the touchscreen, and both calibration and viscosity measurements can be performed without PC or software. However, to have more control, dedicated optional software is available, which can be used to control multiple systems.
A PC system can be sourced locally or through Omnitek. Omnitek supplies the latest model entry level laptop or, if required, desktop. When sourcing locally, make sure the operating system is Windows 7 or later and that the PC/Laptop has 1 free USB port per instrument.
Any kind of printer can be used if instrument is connected to a PC via software. A printer can be sourced locally or through Omnitek. Omnitek supplies the latest model entry level laser printer.
Omnitek offers autosampler operation for S-flow IV+. It is ideal for customers that run large numbers of samples and want to automate their sampling process. As each laboratory will have its own requirements, automation is a highly customized product which requires elaborate preparation. The autosampler stands out for being a modular high speed autosampler, it can be installed after market, services up to 2 S-flow IV+ instruments (8 tubes), processes 25-40 samples per hour and it is customizable to allow different sample cups and racks.
Please contact us for specific solutions to your sampling needs.
The customer should have a DCT shaft diameter < 3mm. The recommended thermometers that can be supplied are the modern digital contact thermometers (DCT), used at multiple temperatures