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Originally Posted by Brent Ridley It's a tree. But the tree has a tee. Just curious...why not just a tee off the vacuum pump? I have two 3/8 and one 1/4 hose connections (one 3/8 has a reducer taking it down to 3/8) on my pump. Had a tree but it got bumped and bent. Was afraid it would leak. I got rid of the tree and went to the low profile three-way intake. you?
Testo 552 It's a tree. But the tree has a tee.
Testo 552
Originally Posted by Brent Ridley It's probably 6 inches tall and 4 inches wide. Lightweight. Nice big display. I use a tee on pump.....with 3/8 hoses to each CRT. I then hook up a short hose to my CRT and connect to 552. I compared to the Bluvac yesterday. The Bluvac is def. more sensitive. But in the end they were within 75 microns of each other. The 552 was very steady. Was that a "tee" or "tree" ?
I have been hearing that the Bluvac is more sensative but which one is more accurate? I thought I read somewhere that the Testo uses an absolute pressure sensor. This sounds like it would be more accurate but I don't know if that is the case or skimpily a buzz word. Does the testo have a leak rate indicator like the Bluvac ( this was a very big selling feature to me ). I know the Bluvac can be recalibrated by putting in a freezer but I assume the Testo will not need calibration with the absolute pressure sensor? I will not buy the testo simply because I already have the both the Bluvac and Bluvac LTE ( both in UEI yellow )
I now see in the description that they recommend brass.
Testo 552 It's probably 6 inches tall and 4 inches wide. Lightweight. Nice big display. I use a tee on pump.....with 3/8 hoses to each CRT. I then hook up a short hose to my CRT and connect to 552. I compared to the Bluvac yesterday. The Bluvac is def. more sensitive. But in the end they were within 75 microns of each other. The 552 was very steady.
Let me go download the spec sheet and see
It looks BIG.... How much does it weigh?
Testo 552 When hooking the 552 to a system for evacuation with no manifold, are you using a short hose to come off the vcr or a brass fitting that hooks directly to the vcr? I was just thinking about the weight of the instrument. Thanks
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