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Contact/ ma/ Wireless Application

Contact/ ma/ Wireless Application

Contact/ ma/ Wireless Application

(OP)
I have an application.  I have a device that has an 4 to 20ma output, and a contact closure.  I would like to be able to transmit these two signals to two different recievers.  The receiver would be able to output the contact closure as well as the 4 to 20 ma signals.

One receiver would be located 1200ft from the transmitter and the other one 3600ft from the transmitter.

Any ideas if such a device exists?

Thanks.

RE: Contact/ ma/ Wireless Application

Decided not to use the 4-20mA?  Why start another post?  Yes this is do-able but expensive.  

RE: Contact/ ma/ Wireless Application

(OP)
Just evaluating a second option, not abandoning the first one.

RE: Contact/ ma/ Wireless Application

Radios are very much more difficult and problematic.  What happens if a single message doesn't make it?

You really aught to tell us a GREAT deal more about what you want this for if you want USEFUL information and nice suggestions.

RE: Contact/ ma/ Wireless Application

(OP)
Belt Scale Integrator.  4-20ma out for rate.  Dry Contacts for tons counter.  If sigal doesn't make it, no big deal.  The remote display are just for information, not control.

RE: Contact/ ma/ Wireless Application

You gotta watch that.. "just for information"  After a while they can become depended on. :)

There are wireless RS232 modems that can be purchased if you can get to a "data stream" situation.  You could use this if your meters and sensor can be had in a serial data output format.  Generally these are bidirectional point to point and you are really talking unidirectional point-to-many.

http://www.phoenixcontact.com/global_download_eng/Flyer_IF_Wireless_engl.pdf

RE: Contact/ ma/ Wireless Application

(OP)
The Phoenix Contact  system is like what I need.  However, the the documentation states that it can only be operated in certain countries.  Anyone aware of such a system that is legal in the US and India?

RE: Contact/ ma/ Wireless Application

Maybe you should 'Contact' them directly to find out which countries :)

Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.

RE: Contact/ ma/ Wireless Application

I think these people are world wide.  They operate a lot in oil and gas.

http://www.zetron.com/

Barry1961

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