The FCU 1315 is a portable service unit for the temporary measurement of particulate contamination, water saturation and fluid temperature in diesel storage, diesel transfer, and diesel filling applications. The FCU 1315 will measure contamination levels of diesel fuel, as well as mineral based hydraulic oils compatible with Viton seals. The FCU 1315 is not compatible with water glycol fluids. The integrated pump and the hoses with test point connections, which are included with the FCU 1315, allow operation on diesel fuel storage tanks and transfer circuits, as well as on hydraulic reservoirs, control circuits, and pressure circuits. All measurement data (ISO, SAE/NAS and % saturation and temperature in C or F) are stored in files (measurement value file) and folders (measurement points) in the internal data memory. The data memory takes place with a time stamp. The evaluation can then be readily carried out on the PC in MS Excel or in HYDAC`s own Fluid Monitoring software (FluMoS).