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Computer controlled liquid dispensers

Computer controlled liquid dispensers - Chemistry Forum

Computer controlled liquid dispensers - Chemistry Forum. Discuss chemical reactions, chemistry.


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  #1  
Old 01-08-2004, 04:49 PM
Ralph Krausse
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Default Computer controlled liquid dispensers



Hello,

I am looking for a simple device that dispenses liquids that is
computer controlled via a USB or serial port. Nothing fancy but I just
need to control the amount of a liquid that get dispensed in a bottle.
For example when you go to Home Depot and get a certain color paint,
they put the can of white paint underneath a nozzle, enter in the
color on the computer and the computer dispenses a few different
colors to create that paint. I am looking for that kind of dispenser.
I would write the software. Any ideas? Sorry is this is the wrong
group to post this in but I am trying to figure out where to start.

Thanks
Ralph Krausse
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  #2  
Old 01-08-2004, 07:28 PM
Marvin Margoshes
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Default Computer controlled liquid dispensers


"Ralph Krausse" <[Only registered users see links. ]> wrote in message
news:49eb6317.0401080849.3ed7c313@posting.google.c om...

One possibility is to use a peristaltic pump or a syrings pump driven by a
stepper motor.


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  #3  
Old 01-09-2004, 11:44 AM
Steve Hill
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Default Computer controlled liquid dispensers

Companies such as Zymark or Gilson might have some equipment such as
syringe pumps that can be controlled by computer. Check that they can
tell you the commands, or alternatively supply a manual that can
first! You must also ensure that the pumps are using something you can
access using whatever language you are using (RS232 I'd guess)

Steve

[Only registered users see links. ] (Ralph Krausse) wrote in message news:<49eb6317.0401080849.3ed7c313@posting.google. com>...
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  #4  
Old 01-09-2004, 01:13 PM
Martin Pot
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Default Computer controlled liquid dispensers

On 8 Jan 2004 08:49:16 -0800, [Only registered users see links. ] (Ralph
Krausse) wrote:

I use an old Hamilton Bonaduz Microlab MT Diluter/Dispenser
syringe pump. It is controlled by simple commands over the RS232
port. The three-way valve can be set to either Prime or Dispense.
The plunger can be moved up or down the length of the syringe
in 1000 tiny steps.

Hope this helps,
---
Martin Pot ([Only registered users see links. ])

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  #5  
Old 01-09-2004, 05:15 PM
John Spevacek
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Default Computer controlled liquid dispensers

[Only registered users see links. ] (Ralph Krausse) wrote in message news:<49eb6317.0401080849.3ed7c313@posting.google. com>...

You will need different pumps and controls depending on the volume you
are dispensing. EFD makes air-actuated systems for dispensing small
amounts repeatedly. [Only registered users see links. ]

John
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  #6  
Old 01-09-2004, 07:40 PM
bob
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Default Computer controlled liquid dispensers

"Marvin Margoshes" <[Only registered users see links. ]> wrote:


Yup.

EFD just came out with this:

[Only registered users see links. ]

Search under infusion pumps to find more.

[Only registered users see links. ]
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