Abstract: A mobile terminal is arranged to communicate over a cellular communication system with a control system connected to a plurality of field devices in an industrial process, in order to remote control, configure or monitor the field devices. The mobile terminal accesses through a dedicated data connection established over the cellular communication system an interactive user interface associated with the control system and arranged to utilize the configuration, control and management data of the control system. In the preferred embodiment, the interactive user interface is provided by a World Wide Web server.

Abstract: A method and a device for reducing the noise caused by throttling a gas flow in a flow channel (1), where after the throttling part (2) there is a wider part (3). The wider part (3) following the throttling part (2) of the flow channel (1) has at least one deviation of the cross-section (D) formed by a wall protrusion (5) in a short part (1) of the channel. The cross-section of the channel wall protrusion (5) taken length-wise of the channel tapers towards the central part of the channel. In a trans- or supersonic flow the protrusion causes a straight shock wave, a so-called Mach disk, in the flow, and this disk is made to occur and to remain within a wide pressure drop ratio range.