It doesn't pulsate? It is impossible for a diaphragm compressor to not pulsate unless it has something to smooth out the airflow such as an airtank. It doesn't pulsate badly but it does still pulsate nonetheless.
Hook an airhose to it without the airbrush attached and turn it on.
Hold your hand over the end of the air hose and feel the air coming out.
It should feel like a real fast pulsation at least my D500 did.
It regards to getting warm I am talking about the fact that if you leave it running for any length of time they do get pretty warm. Maybe not hot to the touch but they can get pretty warm and heat is what kills compressors. If it is real cold in your painting area you may not notice it but come summer time you will see what I mean.
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon