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Flow meters with Mbus interface

Flow meters with Mbus interface

Flow meters with Mbus interface

(OP)
Hi everyone,
I'm searching for flow meter (or energy meters) that has Mbus interface output. Could you please suggest some devices to me?
some properties;
-can be used for clean water
-should be non invasive
-should be cheap
-easy to carry

Thank you!

RE: Flow meters with Mbus interface

If your meters have RS232 or RS485 comm ports you should be able to buy an interface device that can do mbus. I connect power meters via RS485 ports to a device that can talk MODBUS to the control systems.

RE: Flow meters with Mbus interface

(OP)
Can you suggest one such device so that I can understand the idea?
and danw2, thank you very much also =)

RE: Flow meters with Mbus interface

I'm not sure there's a device out there that meets your spec, because even though M-Bus sees wider use in European than in the US, I would expect any instrumentation performing the tasks you list to show up in the US, and I haven't seen them yet.

I still get involved with relatively expensive clamp-on (non-invasive) ultrasonic flow meters for permanent installation used for BTU billing for utility chilled water. The temperature measurements are done with 4 wire, matched pair RTDs to get the accuracy needed for the temperatures.

The kit is not cheap, not easy to carry, but it is non-invasive.

If you find something does in fact meet your requirements, please me know in reply. I'd do something to deal with M-Bus if a product like what you propose is out there.

RE: Flow meters with Mbus interface

CEWE prometer R energy meters can be connected with a specialised device (you can find it if you google CEWEmod).

I also use a fairly new device manaufactured by a small UK company (http://www.kenda.co.uk/kenda/nebula.html) that can be ethernet connected and talk MODBUS. They aren't cheap though.

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