• Simple operation
• Minimal working parts
• Clean and contamination free sampling
• Available for both mineral based and aggressive fluids
• Further advances the LCM20’s flexibility into laboratory

The UBS provides the dynamic link to portable particle counters. The UBS off-line sampler has microprocessor technology to recognize and adjust to the connecting monitor including the icountLCM20.

Samples are best taken from a point in the system where the flow is TURBULENT (Reynolds No. greater than 4000). The turbulent flow creates a mixing action. Where flow is streamline or LAMINAR, larger particulate may tend to settle toward the lower pipe surface and not be sampled.

Changes in the system operating condition, flow, temperature, pressure or vibration, can result in previously sedimented contaminant being retrained into the flowing oil. It is also possible that these changes may cause partially contaminated filter elements to shed particulate into the system. Samples should, therefore, be extracted when the system is in a steady state condition and the result less likely to be distorted by contaminant peaks.

There are a number of proprietary sampling valves available which adhere to good theoretical principles. However, they do tend to generate a level of precision and cost which is unnecessary for trend monitoring.

Sampling points should enable extraction of a sample without changing the system’s condition. Fine control needle valves are not desirable, as they have a tendency to silt up under some operating conditions, causing the distribution of contaminants in the fluid to be changed. The sampling port should be protected to maintain cleanliness and thoroughly flushed before collecting the sample for analysis. Allow sufficient airspace in the bottle to enable 80% fill.

It is preferable that bottles have sealing screw caps and both parts are cleaned to a suitable level in accordance with ISO3722.

Standard Parker bottles are supplied clean to ISO15/13/10 (NAS Class 4).

The bottle should remain capped until time of sample filling and re-capped immediately afterwards.

Sedimentation of contaminant in a sample will occur, the rate of which is dependent upon both fluid and particle characteristics.

Samples should be analysed, without delay, once agitated and de-gassed.

• Batch sampling
• Aircraft rig certification
• Oil research
• Laboratory testing
• Transfer line monitoring