Have a question that I hope someone may be able to assist with

Have a current piece of equipment that consist of a automatic chemical dispensing system, it is controlled with a omron cpm1a plc and a maples display.
The integrator in Italy who designed the equipment is now out of business and am unable to get a copy of the programs with any comments etc., only able to upload it out of one of the machines.
Am considering approaching management and suggest that we replace the system with a micrologixs 1200 and a panlview 300 display ( have a extra one of each left over from another project, so makes it easier to set up on bench and test)

Could someone give some advice on what may be a good flowmeter to use and how to connect it to the 1200 and use the panelview 300 to display the flow of the chemicals. The present system is using float level switches and just filling until the level switches are made, but management is suggesting that we possibly be able to display the actual volume in each chemical tank.
At the moment there are 6 chemical tanks and each one fills to a level between 180-300ml
Any advice would be appreciated
thanks

you can connect the Flow & level meters to the anlog input card 1762-IF4(4 to 20 mA)

For what chemical you are looking for


You can choose good sensors from E&H

http://www.endress.com/

If you want flow rate, the a 4-20mA input expansion model is the way to go. If you want flow totalized, use the built in high speed counter and a meter with a pulse output. Some of the higher end mass meters can be connected to via modbus, the meter electronics will do totalization and flow, you simply get the data from the meter, no I/O required.

The type of meter will depend on the accuracy you require, and the specifics of the application and your budget. Extremely accurate meters are extremely expensive and are not required for most industrial applications. If you are currently using point level switches, then you can most likely tolerate a bit of inaccuracy in your meter. Since you are talking about very small quantities take a look at this vendor: http://www.components.omron.com/Products-M...CFREdSwodehDkug.

On the higher end you could use Rosemount, E&H, or Micromotion

Thanks