yellow jacket micron gauge 69075

[Mat B]

I tried starting my micron gauge today. It went to 0 right away and 3 seconds later gave me doted lines ---- i was just wondering why its doing that?

[CleterD]

I believe it means that the sensor is bad or there is a problem with the sensor plug not making a good connection. Also try a fresh battery.

[KellerW]

Picked up brand new micron gauge today, when I was done using it, removed from circuit and turned it on just for ****s and giggles to see how atmospheric looked. To my dismay, I found that the reading zoomed right down to 600 microns... I left it on and several minutes later it had crept up to 2k microns. Mind you, the sensor had been disconnected from the circuit. I checked to make sure head unit had the correct sensor number in it. Definitely no oil what so ever in the sensor as well. Any suggestions YJ?

M#69086

[Mike19]

Picked up brand new micron gauge today, when I was done using it, removed from circuit and turned it on just for ****s and giggles to see how atmospheric looked. To my dismay, I found that the reading zoomed right down to 600 microns... I left it on and several minutes later it had crept up to 2k microns. Mind you, the sensor had been disconnected from the circuit. I checked to make sure head unit had the correct sensor number in it. Definitely no oil what so ever in the sensor as well. Any suggestions YJ?

M#69086

Had the micron gauge been exposed to refrigerant?

If a micron gauge gets exposed to refrigerant they will do that. It's normal. Once the refrigerant clears out it will all be good.

[socotech]

lightly blow across sensor after removing. Should quickly read atmospheric.

Picked up brand new micron gauge today, when I was done using it, removed from circuit and turned it on just for ****s and giggles to see how atmospheric looked. To my dismay, I found that the reading zoomed right down to 600 microns... I left it on and several minutes later it had crept up to 2k microns. Mind you, the sensor had been disconnected from the circuit. I checked to make sure head unit had the correct sensor number in it. Definitely no oil what so ever in the sensor as well. Any suggestions YJ?

M#69086

Have wrench-Will travel

[KellerW]

Had the micron gauge been exposed to refrigerant?

If a micron gauge gets exposed to refrigerant they will do that. It's normal. Once the refrigerant clears out it will all be good.

No, the gauge was isolated from evacuated circuit and removed.

[KellerW]

lightly blow across sensor after removing. Should quickly read atmospheric.





Have wrench-Will travel

Whilst that sounds very interesting, the problem I have is that I rely on my micron gauge to determine whether or not my circuit is properly dehydrated and I can't trust a gauge that won't show an accurate rise when its at atmospheric.... much less attached to the circuit I am evacuating.

[socotech]

I'm just suggesting to blow any residual refrigerant away from sensor when removed from circuit. This is what I do with mine.

Whilst that sounds very interesting, the problem I have is that I rely on my micron gauge to determine whether or not my circuit is properly dehydrated and I can't trust a gauge that won't show an accurate rise when its at atmospheric.... much less attached to the circuit I am evacuating.

Have wrench-Will travel

[pafieldtech]

I have the 69075. I've had it for 3+ years. Love it and couldn't be happier. Original sensor, never fails. I keep it above any potential oil flow (usually the 1/4" charging port on my 4-way titan manifold). After confirming pressure test with nitrogen, I don't hook it up until the pump has been running for at least 30 mins and has quieted down a bit. I keep a bottle of 91% IPA on the truck. If I'm dealing with a nasty system repair, I clean the sensor with IPA immediately afterward while im changing vac oil... But I clean it no less than every 2 evacuations. If I had to guess, I've probly got 100+ hours on the original sensor. I'd buy it again in a second.

[Sryan42]

If it's exposed to oil/refrigerant, is the alcohol enough to clean it out? Is there a good process for cleaning a very dirty sensor?

[Gross]

I have the 69075. I've had it for 3+ years. Love it and couldn't be happier. Original sensor, never fails. I keep it above any potential oil flow (usually the 1/4" charging port on my 4-way titan manifold). After confirming pressure test with nitrogen, I don't hook it up until the pump has been running for at least 30 mins and has quieted down a bit. I keep a bottle of 91% IPA on the truck. If I'm dealing with a nasty system repair, I clean the sensor with IPA immediately afterward while im changing vac oil... But I clean it no less than every 2 evacuations. If I had to guess, I've probly got 100+ hours on the original sensor. I'd buy it again in a second.

holy cow, 91% IPA! I thought I was hard core drinking 3 Dogfishhead 120s

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[kdean1]

holy cow, 91% IPA! I thought I was hard core drinking 3 Dogfishhead 120s

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Speaking which, my blood type is IPA Positive.

[thump_rrr]

My sensor is over 10 years old.
It’s has been cleaned with IPA a couple of times when it was new.
I then installed a ball valve on the sensor.

[sepuku]

you have balls