Most analog gauges have multiple segments on their dial, and you need to know how to read them, and which part applies to your measurement. You might misread the gauge values, make a mistake during the pt chart conversion, or even make a mathematical error. But however good you are, the chances of making a mistake are much higher. After getting the two measurements, you have to do your math to determine whether there’s enough refrigerant in the system for the smooth and safe operation of the conditioning unit in question.Īnalog gauge usage boils down to you: can you accurately read the dials and perform the extra computation to determine the system's needs? If you can do that, then you’re good to go. Analog HVAC GaugesĪnalog manifold gauges, just like the digital ones, will accurately measure the pressure of the refrigerant after and before the compressor. Digital gauges also open up opportunities to capture more data, including temperature (from clamps), and even connect to scales for accurate refrigerant evacuations and recharge.Įnough of the confusion let’s dissect the two types of gauges. However, some techs are still on the fence, wondering whether to make the switch or not. As innovation keeps on growing, more and more technicians are finding themselves moving the digital way. Well, that has changed, and the backlit LCD digital gauges are now pretty commonplace.Īnalog gauges are definitely still in use, but their digital counterparts have established themselves as the prudent financial investment in terms of precision, speed, and quality. Analog gauges (which are usually made of a brass manifold with two dials) have been used for the longest time, with the digital ones being left for the HVAC techno-geeks. There are two types of HVAC gauges or manifolds: Analog and digital gauges.
HVAC gauges are some of the most used tools by technicians and are ideal for refrigerant charging, leak tests, and measuring refrigerant pressure. Instrumentation plays an essential role in any industrial process for the accurate and timely measurement of different parameters such as pressure, flow, and temperature.
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