The PAMAS S4031 WG and PAMAS S4031 GO WG portable units are designed for moblie analysis of waterglycol fluids and can be used directly on-site (e.g. at drilling rings). In the offshore oil&gas sector, hydraulic systems are usually operating using biologically degradable hydraulic fluids, as these cause less harm than oil-based hydraulic fluids, if they accidentally flow into sea water. The further benefit of PAMAS portable particle counters is their ability to measure both offline and online.