Icon Scientific Cp Online Cloud Point Analyzer

The cloud point is the temperature at which wax crystals begin to form in fuel. The Cp analyzer encloses a small amount of sample in a low-mass cell and cools it at a controlled rate with a Peltier cooler. A non-contact light source and detector monitor the light scattered by crystals; when sufficient scattering is seen, the value is recorded, the cell is flushed and the cycle repeats.

Cloud Point (Cp) features

• Results compliant with ASTM D2500 and D5771/D5772/D5773 methods; repeatability is targeted with a detection algorithm and variable-rate cooling.
• Patented vacuum insulation improves cooling and in most cases requires no external chiller.
• If the sample arrives very cold, the Peltier runs in reverse to heat it.
• There are standard and Cryo versions for very low temperatures.
• A typical application is diesel blending and adjusting additive dosing at refineries.

Choosing Cloud Point (Cp)

Because the cell is vacuum-insulated, faults from condensation and icing are reduced. The measured value is used to control additive dosing by comparison with the quality limits for winter diesel; line design matters for keeping the sample representative.

Tetra plans the sampling point and line design according to the refinery stream, commissions the analyzer and supports comparative verification against laboratory results. Service and spare parts for the cell flush cycle and Peltier module are managed from Türkiye.