Blue Hose Question

[Emach 0]

A quick question for you'all. On your standard Belden Blue hose 9463, which conductor is the positive one? Blue or transparent? Many thanks in advance, building a new machine and don't want to bother the plant EE. -Emach

[Mickey 71]

I don't know which is positive or negative never put a meter on it. But the color coding per the manual is just the opposite for Remote I/O and DH+. see pictures below. But it really does not matter wire is wire. It just helps to keep DH+ and Remote I/O separate. Picture on left is Remote I/O picture on right is DH+ Edited 8 Dec 2011 by Mickey

[Emach 0]

A bit of clarification, I am using it as a shielded 4-20mA wire in my machine to bring the signal from an isolator to an AB analog input card.

[BobB 58]

I normally use clear/white for positive and blue for negative.

[Mickey 71]

That's an expensive cable for 4 to 20ma. Must have lots of it around.

[BobB 58]

Sure is. I do not get too 'precious' about 4-20ma cables and normally use a cheap, screened cable 7/0.20 size. Use the same stuff for my Modbus RTU and CompoNet comms as well unless it is a long run when I use 0.75 sq. mm stuff.

[Ken Moore 23]

I always use black/red or clear/black and black is ALWAYS negative. Just like your car.

[Emach 0]

You hit that spot on. One of our facilities had several manufacturing lines that were removed in the last few years. I have huge storage bins full of blue hose.