Moisture Detector Tubes

Download Brochure

Moisture Detector Tubes

Part Number: RT751M

The Acid and Moisture level of refrigerant gas are measured independently. Knowing the purity of Refrigerant is vital information for every service technician. The technician needs to know if the refrigerant can be (1) immediately reused, (2) needs to be cleaned-up, (3) contaminated beyond reclaiming capabilities, (4) or failed to be properly cleaned during a reclaiming process. In System Diagnostics, the tests result obtained by the Oil Detector Tube can be correlated to the findings of the Refrigerant examination, or vice versa.

Simply insert a Detector Tube into the Checkmate body and connect inline to a cylinder or on the low side of the system. Detector Tube results take less than one minute.

The Checkmate method is the industry’s only valid field test for measuring acid and moisture levels in both the compressor oil and any refrigerant gas. The Detector Tubes have been tested for accuracy by Intertek Testing Services, an ARI approved laboratory.

  • Heavy wall pyrex glass is used on each tube and packed under dry nitrogen, and the high quality brass body is coupled with HG 316 stainless steel needles.

  • Refrigerant oils are the opposite of engine oil in nature. They are hygroscopic (absorb moisture), and engine or petroleum oils are hydroscopic (repel moisture).

  • ISO4406 states that PAG and POE oils must not exceed a moisture content of 350ppm.