/24/2009I gave my old micron gauge to an installer, so I picked up a new one today. I bought a Fieldpiece, I tried to pull a vacuum and could not get it told pull below 650 and when I shut it off It went above 2000 then just says OL. . After that I'll vent the nitrogen, and hook up a vacuum pump. I use copper tubing, put an isolation valve on the vacuum pump and at both access ports, and I find one more location to attach my micron gauge, also with an isolation valve. Then I vacuum the system until the micron gauge reads below 500 microns.
Popular article Micron gauge hook up
Hands-Free with a “hang up your overalls” strong magnet. Long battery life and versatility with 12 different measuring units including micron, Torr, and inches of mercury. This Micron Gauge was designed for HVAC technicians. Innovative visual graphing features pinpoint the problem in real time (Leak, Pump, Outgas, Stable). . The Testo 552 (0560 5522) Digital Vacuum/Micron Gauge is the ideal instrument for monitoring the evacuation of air conditioning, refrigeration, and heat pump systems. It is rich in features that make your work faster, easier, and more accurate.
The DV-29 eliminates other problems when attaching the micron gauge into the system. If the micron gauge is attached directly to the vacuum pump or with a 3' (91. 4 cm) dedicated hose, you will get a lower reading as the gauge is sensing what the pump is doing and not what the pump is doing to the system. . The AccuTools wireless capability, an Evacuation Progress Indicator, Saturation Temperature Display, and a Leak Rate Indicator in either units/second or units/minute.
. I pull only from one side of the system using a micron gauge, but at times my gauge will jump up to a higher number. Is this right? This can happen even if you pull on both sides of the system because there is a metering device to measure the pressure and refrigerant in the system. . /4/2012 However. on occasion it will take several hours (existing systems after a repair). I see guys bringing compressors back to the supply houses complaining that they are crap.
Fieldpiece SMAN460 - SMAN460, 4 Port Wireless Digital Manifold w/ Micron Gauge - The SMAN460 wireless four-port digital manifold is the top-of-the-line Fieldpiece manifold. It has more features and benefits than any other manifold on the market. . As the gauge can handle up to 500 psig, you need not be concerned with damaging the micron gauge by over pressurization. Once the liquid line is completely open, open the suction service valve, re install the valve cores and remove the vacuum gauge and core tools.
The Supco VG64 vacuum gauge has an LCD digital, backlit display of 0 to 12,000 micron (0 to 1,600 Pascals) range, 0. 5 to 1,000 micron resolution, 1,000 micron graduation, a programmable, audible, and visual alarm for high and low vacuum, and a 1/2-second response time.
in micron levels may signify moisture is still present in the system Press to confirm selection. 6 lock in a digit and move to the next digit. Repeat for all LO alarm Press/hold to cycle through refrigerants. 7 Press to turn on/off the Hi/Lo vacuum alarms and hold to …
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JB Industries DV-29 Vacuum and Hookup Test Unit creates a closed system to eliminate leakage under deep vacuum for more accurate measurements and can be paired with any existing vacuum gauge.
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