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Hi guys, I am new here, just wanna ask how to install a brew pressure gauge on my Nuova Simonelli Oscar? and where do I get those accessories? I had been searching for them, but I couldn't find any online.
Hi guys, I am new here, just wanna ask how to install a brew pressure gauge on my Nuova Simonelli Oscar? and where do I get those accessories? I had been searching for them, but I couldn't find any online. Thanks
I can't help you with a detailed explanation of how to do this on an Oscar, but the principle is fairly simple. You install a "T" piece in the pipe between the pump and the boiler/HX and run a copper or high pressure plastic tube from the T to the gauge. If the machine has an OPV it would probably need to be between that and the boiler or HX. A couple of our members show how they did this on their Sunbeams in this thread :- http://coffeesnobs.com.au/brewing-eq...shots-now.html
The gauges can be bought from R S Components. Their prices are as good or better than any I could find, and their service is excellent.
I bought one with the intention of fitting it to my Gaggia, but ended up making a portafilter gauge and adjusting the OPV instead.
It screws into your portafilter replacing the spout, and measures the static pressure which is about 1 bar above dynamic pressure. With my opv I get a reading of 9.5 bar.
How exactly the pressure check kit work? just wondering if the coffee will come out from the portafilter? or I have to change it after that. Thank you guys!
No coffee will come out, because no grounds will be in there. You screw the gauge onto the portafilter instead of a spout, then lock the P/F into the collar without any basket or coffee and flick on the brew switch for long enough to get a reading of the pressure in the brew head with no actual flow. It shows the maximum pressure that will be applied to the puck. The pressure with a normal basket full of espresso ground coffee (correctly tamped), will usually be a bit less because some water is now flowing through the puck, thus reducing the pressure just a little.
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