Just Better is the signature slogan and product line for JB Industries, a premier American manufacturer of HVAC/R tools, vacuum pumps, and digital gauges.
Just Better represents the high-performance line of HVAC/R tools and instruments manufactured by JB Industries. Renowned in the industry for American-made quality and durability, the brand focuses on essential equipment for refrigeration and air conditioning service technicians. The product lineup includes rotary vane deep vacuum pumps, digital micron gauges like the DV-22N, and leak-proof manifolds designed to ensure precise system evacuation and diagnostics.
Built for professionals, Just Better tools emphasize accuracy, rugged construction, and field reliability. Their vacuum pumps are engineered to deliver deep vacuum performance significantly below 50 microns, while their electronic gauges provide critical thermal sensing data to verify system dryness. JB Industries supports these products with comprehensive instruction manuals, repair parts, and technical resources to maximize tool performance on the job site.
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Use 90% pure or better isopropyl (rubbing) alcohol. Do not use denatured alcohol. Pour a small amount into the sensor area to clean it, as residues can cause erratic readings.
It is recommended to use high-quality vacuum pump oil. If your pump fails to pull down to at least 50 microns, the oil is likely contaminated and should be changed immediately.
Oil should be changed if the pump cannot reach the desired deep vacuum (50 microns). For best performance, check the oil quality before every job and change it if it appears cloudy or contaminated with moisture.
Using a tool like the DV-29 creates a closed environment to isolate the system. If the micron reading rises slowly, it may indicate permeation or a leak. Using O-ring sealed couplers helps prevent leaks at connections.