Flow Level Pressure

  • New Modbus functionality for Guided Wave Radar transmitter family

New Modbus functionality for Guided Wave Radar transmitter family

Jul 03 2009 Read 820 Times

The 3300 series from Emerson (UK) adds Modbus ASCII and LevelMaster protocols to enable reduction of up to 60% in programming and maintenance-related costs

Emerson Process Management has introduced a new version of its Rosemount® 3300 Series of Guided Wave Radar (GWR) transmitters with a Hart to Modbus Converter; the new version includes Modbus ASCII and LevelMaster protocols in addition to the previously available Modbus RTU. The additional protocols, combined with the ability to configure the transmitter remotely over the Modbus communication wires using Hart, provide users in the oil and gas industry with real time level and interface measurement.
The new Modbus functionality of the 3300 Series GWR transmitters has been developed in response to customer demand, with initial trials showing a potential reduction of up to 60% in start-up, programming and on-site maintenance-related costs. For example, remote configuration of the GWR transmitter at grade level eliminates the need for personnel to climb the tank. The LevelMaster emulation enables the 3300 to imitate the ABB, Siemens and Kimray ‘Tank’ protocols and be functional on its systems, so the RTU setup can be completed in just minutes.
Rosemount 3300 series GWR transmitters are designed for the harsh conditions of the oil and gas industry with thousands already installed in oil, water and condensate tanks and separators all over the world. By automating tank level measurements companies can realise a number of benefits: increase labour safety (by eliminating the need to climb tanks); reduce operating costs (through downsizing the trucking fleet and/or minimising miles driven); and reduce road maintenance.


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