Oil checks can be made with the OELCHECK analysis sets and a sampling pump, or removed cleanly, quickly and simply via a built-in valve in front of the filter. With residue from the filter cartridge, this is a little more intricate because we do not need the complete filter; rather we need a 50mm x 50mm large representative piece of the filter mesh only.
Please do not send us the entire filter in any case.
As a laboratory, we do have the mechanical scope to remove filter mesh. This would also result in additional costs for you for its disposal. You can send the filter mesh of approximately 50mm x 50mm in a pre-paid sample container.
We demonstrate how you can remove a representative piece of filter mesh as an example from a completely enclosed main current filter of a wind energy system (see Instruction for sample preparation for filter residue analyses).