Abstract: A self-organizing mesh network is made up of individual devices configured to use other network devices to pass data from one point to another. The network also includes a secondary operating mode that accommodates handheld and other non-fixed transient network nodes. Each device in the network maintains a configuration link that is used to detect the presence of a handheld device. The handheld device uses the configuration link to identify nearby network devices. A user of the handheld device can then select one of the network devices and establish a small point-to-point subnetwork between the handheld device and the selected network device.

Abstract: An overpressure vent in a transmitter housing of a process transmitter. The transmitter is configured for coupling to an industrial process and measuring a process variable. The transmitter includes an enclosure having a cavity formed therein. A process coupling is configured to couple the cavity to the industrial process. The overpressure vent is arranged to vent an overpressure in the cavity to outside of the transmitter enclosure.