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from the Automation List department...
Well surveillance
Communications systems and equipment. topic
Posted by Andi on 6 December, 2007 - 10:55 pm
Is there any instrument or well surveillance system can be applied with the distance between master station and remote area about 2-4 kilometers using 2.4 GHz wireless IP based?


Posted by Dick Caro on 8 December, 2007 - 2:24 am
Yes. You may install an Ethernet-based well-head surveillance system/RTU and link it to your chosen Master Station using an industrial grade IEEE802.11a/b/g/n (WiFi) link. You may need to use external directional antennas to get the 2-4 Km distance.

I discuss some of these issues in my book, "Wireless Networks for Industrial Automation", as noted in my signature block below.

Dick Caro
===========================================
Richard H. Caro, Certified Automation Professional, CEO, CMC Associates,
2 Beth Circle, Acton, MA 01720
Tel: +1.978.635.9449 Mobile: +.978.764.4728
Fax: +1.978.246.1270
E-mail: RCaro@CMC.us
Web: http://www.CMC.us
Buy my books:
http://www.isa.org/books
Automation Network Selection
Wireless Networks for Industrial Automation
http://www.spitzerandboyes.com/Product/fbus.htm
The Consumer's Guide to Fieldbus Network Equipment for Process Control
Buy this book and save 50% or more on your next control system!!!
===========================================

From Control Engineering magazine...
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