Contact/ ma/ Wireless Application

[Stanfi]

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.

 

[itsmoked]

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

 

[Stanfi]

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

 

[itsmoked]

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.

 

[Stanfi]

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.

 

[itsmoked]

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

 

[Stanfi]

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?

 

[analogkid2digitalman]

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.

 

[Barry1961]

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

http://www.zetron.com/

Barry1961