Megger's most recent portable oil testing set is the Megger OTS60PB.
This set is the world's lightest portable unit, and it is configurable to your specifications when you order. The process or method for gauging insulating oil's dielectric strength is outlined to several national and international standards. While most of these standards share similarities, the primary differences relate to the specified electrode shapes, whether the oil gets stirred throughout the test and the capacity of the vessel.
The Megger OTS60PB is built to detect current or voltage breakdown, which assists the range in complying with any developments or changes to oil testing standards in the future.
One of the Megger OTS60PB's original features is that it provides customised test sequences, along with the improved capability of being able to download new test standards from Megger's website and upload them into the instrument via a U.S.B. stick.
It is specified, in the I.E.C. & derived standards, that oil sample temperatures have to be 20 degrees Celsius plus or minus 5 degrees Celsius. This is because the breakdown voltage often varies significantly with changes in temperature, primarily resulting from the content of cellulose in the oil.
To help you to adhere to this temperature specification, the Megger OTS60PB offers an automatic measurement for temperature with in-built recording.