How many of you use a micron guage?

[hvaclover]

Fooey.

I can't find a mfg I can trust.

Wat's the fav micron gauge being used by those WH O DO use them?

[DPSwitch]

Yellow Jacket

[DPSwitch]

I've got a CPS also that is about the size of a gauge ....... some guys say they are a POS but i don't know.... I use it in tight spots. I can't recommend it yet.

[hvaclover]

RSA 560 analyzer has a built in micron scale, but one of the guys said measuring at the manifold is not accurate.

An instrument that measures that small an increment has to be very accurate to be worthwhile to use and I don't think they can be had inexpensively.
I would drop the money on the 560 if I had some reliable data instead of anecdotal
testimonials.
Anybody got any comments either way on that?

[DPSwitch]

RSA 560 analyzer has a built in micron scale, but one of the guys said measuring at the manifold is not accurate.

An instrument that measures that small an increment has to be very accurate to be worthwhile to use and I don't think they can be had inexpensively.
I would drop the money on the 560 if I had some reliable data instead of anecdotal
testimonials.
Anybody got any comments either way on that?

I was looking at the same thing...... I got talked out of it.

[beenthere]

YJ.

[hvaclover]

YJ.

OK. I got a YJ Brute evac/charging manifod. It has 1/4 plugs on the hi and lo sides. These are obviously for a micron instrument.

Why than is it not good to measure vacuum at the manifold?

I hear so many diff reasons I would like to seperate the the chaff from the wheat.

[comfortdoc]

I use the Thermal D analog (450-2 I think). It's about 10 yrs old. Not sure what he did but an instruments tech at a customers lab compared it to his stuff and said it was accurate. That was 5 yrs ago. Probably time to verify it again.

[beenthere]

Cause you reading the contaiminates of your manifold.
Put a CRT on the access fitting, put a access tee on the CRT and hook your micron gauge to it. You can blank off the hoses with the CRT when you check to see if its holding.

[MB1211]

I have the CPS and just don't like it. The YJ is on order. The funniest part is my local HVAC supply house always thinks I'm crazy for buying alot of nitrogen, micron guage, differential thermometer and other tools over the years.

[hvaclover]

Cause you reading the contaiminates of your manifold.
Put a CRT on the access fitting, put a access tee on the CRT and hook your micron gauge to it. You can blank off the hoses with the CRT when you check to see if its holding.

[I_bend_metal]

I'm taking service procedures now and we are pulling vacums and using micron guages. I'm curious how many of you actually use on in the field. Thanks

If you're not using one....you have no business being in the field.

[I_bend_metal]

I have the CPS and just don't like it. The YJ is on order. The funniest part is my local HVAC supply house always thinks I'm crazy for buying alot of nitrogen, micron guage, differential thermometer and other tools over the years.

I have the CPS also...I love mine...works great