Oil Detector Tubes
Checkmate Method for Determining Contaminants in Compressor Oil
Part #RT752C

Description
Using the Checkmate device, a drop of oil can be milked off the suction side of a system. The Oil will be seen wetting through the Detector Tubes' Transfer Agent. As the Oil passes through the Transfer Agent a dye fraction will release and stain the Indicator Segment. The color captured by in the Indicator is compared against a color chart.

The Easy Oil Test

The soft colors indicate low Oil conductivity progressing stepwise to the stronger colors of highly conductive Oil. Hence, the full range of Oil contaminants are determined by dielectric strength.

Manual
Attached is the complete Checkmate manual

Oil Detector Tubes