Does someone has experience with (designing) a mesh with only 708 Acoustic transmitters at groundlevel in a plant with a dense metal structure (piping, vessels, furnaces, pumps, etc.) and one gateway in the middle of the plant?
I see two possible options to design a mesh with only wireless transmitters at groundlevel (max. 1 meter from ground):
Hello Rob,
Assuming your 1 meter restriction is only due to the location of the steam traps, have you considered mounting repeaters above the process infrastructure, rather than around the outside of the unit?
Additionally, I recommend that you check out the latest version of AMS Wireless SNAP-ON for planning your network. We have added the ability to place obstructions directly the network diagram, providing more fidelity to your network plan.
Regards,
Nicholas Meyer | Product Manager | Reliability Solutions
http://videos.emersonprocess.com/detail/video/3899899999001/ams-wireless-snap-ontm-application?autoStart=true
Steam traps are usually closed to the ground, so yes, we have done installation like that with Rosemount 708 acoustics transmitters for steam trap monitoring. See image below as one example. The installation of the gateway and antenna is on top of the control room in the middle of the plant. This site uses 1410D gateway (in the field junction box) with 781 remote radio mounted on a pole. A few Rosemount 702 were used as routers.
As a matter of curiosity, you can also see gray antennas pointing down from the underside of the JB. These are 3G router antennas sending the raw data from the steam traps to SteamLogic analytics software in the cloud. The SteamLogic software generates weekly trap failure reports and monthly steam and CO2 savings reports from the raw data coming from the sensors.
In reply to Russ Muller:
In reply to Rob Sosef:
Rosemount 708 should be mounted horizontal (waveguide) with the power module (battery) facing down