Originally Posted by Some Dude
I know nothing.
It's just lucky this is R134A...which you can charge as vapor.
Originally Posted by crackertech
I agree with JP who said, vapor charging allows for better accuracy. But the real question here is, do you have the proper charging scale to give you the accuracy you need?
Heated charging cylinder.
Thats how most domestic refrigerators are charged.
Used to work for Sears and did too many of them.
Just glad I don't work for them anymore.
X3 on the vapor charge and I like the converting to grams. It's got more increments for more accuracy.
If you switch to grams you'll have much smaller increments, but the accuracy of the scale remains the same.
Originally Posted by VTP99
My (POS) TIF scale has a resolution of +/- .5 oz and will read out in kg to 2 decimal places...ie, 0.00 kg. That means it's lowest possible results would be in increments of 10 grams...which is still less than .5 oz.
So my stupid scale won't even register anything until you're up to about 20 grams.
I would try for weight - but settle for performance
I would try for weight - but settle for performance. Throw in 'almost a pound' and see how it runs. Then adjust accordingly.
The conventional view serves to protect us from the painful job of thinking.
use a 3 foot hose
Originally Posted by icemeister
Great in idea, very difficult in implementation. Such a scale is very costly and not portable.
Originally Posted by EugeneTheJeep
They have such high capacity, high resolution scales for such thing as measuring grams of tread worn out on a tire after a test run with the wheel still attached. They're something like 50,000g x 0.1g which requires a 500,000 count resolution.
Your average 220 lbs x 0.25oz charge scale is 100,000g x 10g which is only 10,000 counts.
Do they have such thing as an adjustable metered dose injector that lets you dial-in the charge in 0.01oz increments and allow the injector head to mount close to the port?
Use a CRT & purge to it. Zero the scale & let her rip. Being as my scale reads .25 oz & who knows the accuracy id stop her at 1. Don't know about checking pressure after though lol
Sent from my HTC Sensation 4G using Tapatalk 2
Not worth charging! Although, i'm sure it's built more professionally than a True 2 door refrigerator!!
Its crazy how something can run off 1 ounce
Whats the oil charge .... 3 drops ?
Those things hit the wall a few years ago when they stopped using copeland comp.
Originally Posted by KB Cool
You sure are cocky for a starving pilgrim.
About as accurate as trying to charge a package unit by weight from a cylinder still in a pallet on a fork lift that's on a platform scale. That is, using the reading from the platform scale.
Originally Posted by hvac wiz 79