Electronic pressure regulator
- Thread starter alexp1289
- Start date
logixjock
Well-known member
I can think of 3 different ways to interpret that information request. We need more information, what exactly are you trying to control? The on/off set-points for the motor? Some kind of servo driven pressure regulator? Or a standard mechanical pressure regulator with a digital gauge instead of an analog one?
Just set the correct pressure for my air tools. I like digital and feel it's more accurate.
NeuseRvrRat
Well-known member
- Joined
- Mar 10, 2015
- Messages
- 130
A regular old regulator with a dial gauge is plenty accurate enough for this. Don't overcomplicate it.
There is much more to go wrong (and be wrong in the first place) in a digital gauge. Just because the number is displayed on an LCD screen DOES NOT mean it is correct. Digital also needs power.
A normal mechanical dial pressure gauge is most accurate at the center of the scale, so if the desired setting is 100 psi get a 200 psi gauge.
Some gauge choices. Big dial or liquid filled.
http://www.surpluscenter.com/Air-Pn...PSI-4-5-FM-DRY-GAUGE-V4901QPG3-21-1608-ED.axd
http://www.surpluscenter.com/Air-Pn...PSI-4-5-FM-DRY-GAUGE-V4904QPG1-21-1608-EV.axd
http://www.surpluscenter.com/Air-Pn...-Gauges/200-PSI-2-5-LF-LM-GAUGE-21-1246-D.axd
The ultimate has a mirror strip behind the needle to eliminate parallax.
http://www.surpluscenter.com/Air-Pn...PSI-4-5-FM-DRY-GAUGE-V4901QPG3-21-1608-ED.axd
http://www.surpluscenter.com/Air-Pn...PSI-4-5-FM-DRY-GAUGE-V4904QPG1-21-1608-EV.axd
http://www.surpluscenter.com/Air-Pn...-Gauges/200-PSI-2-5-LF-LM-GAUGE-21-1246-D.axd
The ultimate has a mirror strip behind the needle to eliminate parallax.
Attachments
http://fairchildproducts.com/subcat/13/High_Accuracy_Electro-Pneumatic_Transducers.php
This ought to get you started. search on pneumatic pressure transducers . And do not come back and say to expensive. You have to pay for 'feelings' . Now if you come back with good numbers and a hysteresis you can live with then we can maybe find something more suitable.
lg
no neat sig line
This ought to get you started. search on pneumatic pressure transducers . And do not come back and say to expensive. You have to pay for 'feelings' . Now if you come back with good numbers and a hysteresis you can live with then we can maybe find something more suitable.
lg
no neat sig line
Last edited:
Good point, when the OP said digital I was thinking Harbor Freight.
Just looking for a really accurate pressure regulator for on my air compressor. I didn't realize how expensive the digital ones where I thought they'd be like in the $50-$100 range but if you guys can help me find one that is a needle type gauge that would be great all I need to do is set the pressure for my pneumatic tools I don't plan on doing any painting or anything like that. I guess what I'm saying is I don't know what brands to avoid cuz I don't want to buy some Chinese piece of **** I'd rather buy something that's quality and will last a long time.
How's this for "feelings"? I'm installing an electronic pressure gage/transducer for our compressed air at work sometime in the coming months. It's going to be connected to our Building Automation system and will allow me to check air pressure, humidity, and temp of the air in the lines at anytime from my phone or computer and give me a graph as well. It will also be setup to alert my phone if anything goes out of range. That's going to cost somewhere in the $10k range, probably more after programming.