Is this considered a full CO2 tank after refill ?

[spinex]

This is the 1st time i have refilled my CO2.

From the meter on the left, it never moved to near full level.

How to we check if the co2 tank is fully filled from the gaudge ?

Below is the photo of my gaudge

[chanck]

Hi
If you look at the outer ( red ) scale on the left hand gauage, it should be around 1000 psi. Normally after a refill, the needle will be beyond 1000 for a while. After that, it should stay there until it's time to refill.

Chee Kin

[grey_fox]

Hmm,

Sorry to hop-on to this thread but my JBJ solenoid is weird. I just plugged in a new Co2 tank and the guage to show the volume of the existing CO2 in the tank is at 0. Same goes for the previous CO2 tank I had. Could my JBJ solenoid be a faulty one?

My guage on the right is forever at 2.5 even with the valve turned on full.

Any advise?

[evolim83]

Mine after refills and when first bought also hover around that range.
However, anything below 1000 would not be considered fully-filled!

[grey_fox]

Strange.

So my CO2 tank is not full or is the solenoid faulty? It switches on and off fine. Plus I got the CO2 tank from NA. Can't be Chan conned me right?

Weird thing is that on two CO2 tanks the left guage is at zero.

[PeterGwee]

Strange.

So my CO2 tank is not full or is the solenoid faulty? It switches on and off fine. Plus I got the CO2 tank from NA. Can't be Chan conned me right?

Weird thing is that on two CO2 tanks the left guage is at zero.

Go ask Chan!!... He should be able to help you or at least replace the gauge if under warranty.

Regards
Peter Gwee

[grey_fox]

Yeah, will go down with a hammer-in-hand as well...

Luckily it is under warranty.

[evolim83]

Probably is a case of faulty guage!
Everything else would work fine, just that you might see what's left!

[tawauboy]

as long as there is still liquid co2 in the cylinder, the left gauge will show around 1000+ psi. note that this pressure is dependent on ambient temperature.
when all liquid co2 is used up, the gauge will start to drop.

so when the gauge is showing 1000+ psi, it may not mean that your cylinder is filled. only by weighing your cylinder, you can confirm if your cylinder is fully filled. believe you can assume 1kg for every 1l of volume; ie 2.5l cylinder should have about 2.5kg extra weight compared to when cylinder is empty.

the right gauge shows the output pressure to reactor/diffuser. this value should be stable and not fluctuating. only regulators which allow tuning of output pressure will show other values.

[hii]

if the meter by pass red area, i guess it is like those submarine show ... red alarm to evacuate .. hehe.

[AquaObsession]

Yeps, maybe one of the gauge is faulty... get it replaced or repaired if you want.

Yeps, when refilled it should be slightly above 1000, and will stay there until next time for refilll. Btw ,do note that temperature also affect that reading (because i guess this is all pressume related). I once was quite careless, and put my co2 cyclinder besides my chiller... haha, pressure went up... lucky i was still monitoring the equipment and saw that, else i dunno what i should i expect....

[taz_boy]

This is the 1st time i have refilled my CO2.

From the meter on the left, it never moved to near full level.

How to we check if the co2 tank is fully filled from the gaudge ?

as folks up there have mentioned...it should be ard 1000psi aft top up...
but from wat i know, sometimes the gauge may not be the most accurate device to determine whether it's fully top up..

weigh the co2 tank b4 and after top up to determine whether they top up the correct volume for it..there's a guideline as in 1kg of liquid co2 = ???kg..can't remember exactly also.

normally if urs is a eg. 3lt tank. they won't pump in exactly 3lt. normally is a bit lesser.