cheap ml range liquid flow sensor

[miva]

Hello,

I was wondering if anyone know any companies which sell directly these items because it seems many of the ones i am finding are for high end applications...

Any help would be much appreciated.

Note: no liquids are corrosive and low viscosity etc generally just water will flow through it

Please help

Miles

[Integral]

Lots of different kinds of flow meters what are you looking for and how much money do you want to spend?

http://www.kinginstrumentco.com/

I have used meters from these people and was happy with them. I paid about $140 for a flow meter with max flow of 30ml/min. They can make them for even lower flow.

We also had Weber flow meters (http://www.webersensorsinc.com/) at max flow of 10ml/min but they cost ~$1200 each.

[Q_Goest]

The flowmeter Integral is refering to is called a "rotameter". They're very cheap - I've seen them as low as ~$50. Try looking through McMaster Carr (http://www.mcmaster.com/#rotameters/=38ty37)as well.

[miva]

thanks guys for the replies!
i'm more after a in line sensor, something that can ideally join to clear vinal tubing and produces a output something like 0-5V

any more ideas?

[Integral]

You are not going to find that cheap. Look at the Weber site. The meters I worked with had a 4-20ma output but could be ordered with 5V or 10V. You will need some knowledge of electronics to make it work.

[arithmetix]

Hi!
4-20 mA stuff really costs a lot as already pointed out. This is because 4-20mA is an industrial standard protocol, and the sensors are made to last.
If you tell us more about your application it might help.