The invention relates to a housing lid for a field device comprising a screw thread, a receiving and transmitting unit, a battery unit, and a communication interface. The screw thread secures the housing lid to the field device. The receiving and transmitting unit is embodied wirelessly to receive information produced by at least one external unit and to transmit information produced by the field device to the external unit. The battery unit supplies the receiving and transmitting unit and/or the field device with electrical energy. The communication interface is in electrical contact with the battery unit, with the receiving and transmitting unit and via a corresponding communication interface of the field device with the field device.

A system includes a module having at least one input/output (I/O) channel. The system also includes a terminal block having terminals configured to provide electrical connections for the at least one I/O channel. The system further includes a barrier assembly having one or more intrinsic safety (IS) barriers. Each IS barrier is configured to receive at least one data or power signal, limit an amount of energy in the at least one data or power signal, and output the at least one energy-limited data or power signal. Each IS barrier includes at least one limiter circuit configured to limit the amount of energy in the at least one data or power signal. Each IS barrier is configured to be mounted on the terminal block. Each IS barrier could be configured to provide galvanic isolation between multiple devices or systems coupled to the IS barrier. Each limiter circuit could include a current limiter.

A handheld field maintenance tool includes a training mode. The handheld field maintenance tool has a process communication module operably coupleable to a field device, a user interface, and a controller coupled to the process communication module and the user interface. The controller is configured to interact with a user through the user interface, and is configured to provide a simulation function where at least one characteristic of the field device, indicated through the user interface, is generated by the controller instead of the field device.

An apparatus includes a housing, a touch sensor, a display, and a control module. The housing has a body defining a volume to accommodate a process control device and is adapted to withstand a threshold internal pressure greater than an external pressure. The housing further has a transparent portion having first and second surfaces. The touch sensor is disposed adjacent to the second surface of the transparent portion and senses an input received within a minimum distance from the first surface of the transparent portion. The display is disposed adjacent to the touch sensor and displays at least one adjustable variable corresponding to the process control device.

The present invention provides for an electronic isolator device for application in intrinsically safe environments having isolation and safety functionality and comprising: an isolator module (101), a safety module (100), and wherein the isolator module is arranged for removable physical/electrical connection to the safety module in at least two orientations/configurations (DO, Dl, Al, AO) relative to the safety module, wherein the electrical connection to the safety module in each of the at least two orientations/configurations serves to configure the electrical functionality of the safety module (100).

A process calibrator is formed with functions of a fieldbus communicator. Preferably, functions of a fieldbus communicator support several fieldbus protocols, and it is provided such that the use of it does not hamper the functioning of a process calibrator. This has been achieved by providing the process calibrator with a pair of fieldbus connecting terminals for measuring of the fieldbus signal. The process calibrator comprises a processor, and the pair of fieldbus connecting terminals comprises a signal terminal and a ground terminal. The process calibrator further comprises at least two parallel fieldbus protocol units between the processor and the signal terminal of the pair of fieldbus connecting terminals. Each fieldbus protocol unit is dedicated to its respective fieldbus protocol. Further, the process calibrator comprises a selection unit for selecting a fieldbus protocol unit and a voltage unit for being between the terminals of said pair of fieldbus connecting terminals, which voltage unit is arranged to adjust the voltage and the impedance according to the selected fieldbus protocol unit. The selecting unit is controlled manually through the user interface. The user interface is realized by a touch screen or a combination of a touch screen and keyboard or only by a keyboard.

Method for start-up of a field device, wherein for start-up of the field device an energy storage unit (R) for storing electrical energy is charged by means of a power supply (PS), preferably a power-limited power supply (PS), and wherein the electrical energy stored in the energy storage unit (R) is used to supply the field device at least at times with electrical energy, at least during start-up of the field device.

An intrinsically-safe handheld field maintenance tool is provided. The tool includes a process communication module configured to communicate with a field device in accordance with a process industry communication protocol. A controller is coupled to the process communication module and is configured to provide at least one function related to maintenance of the field device. Program instructions embodied on a computer readable medium coupled to the controller, the program instructions causing the controller, when executed by the controller, to provide operator rounds functionality, CMMS/EAM functionality and/or ERP functionality.

A handheld field maintenance tool with improved diagnostic functions is provided. The tool includes a process communication module configured to interact with a field device. A controller is coupled to the process communication module. The controller is configured to execute a number of improved diagnostic functions relative to the field device. The controller may obtain contextual information relative to a current field maintenance operation and preload at least one resource relative to a next field operation step. The controller may obtain process alarm information through a wireless communication module, and field device alert information through the process communication module and provide an indication on a display relative to both process alarm information and field device alert information. The controller may execute a sequence of field device maintenance operations on the field device in response to a signal from a user input device. The controller may obtain snapshot information in response to a signal from a user input device.

A handheld field maintenance tool is provided. The handheld field maintenance tool includes a process communication module configured to communicate with a field device. The handheld field maintenance tool also includes a display and a user input device. A controller is coupled to the process communication module, the user input device and the display and is configured to generate a listing of task-based field maintenance operations on the display and receive a user input selecting a task-based field maintenance operation. The controller is configured to automatically traverse a menu of the field device using a fast-key sequence relative to the selected task. A method of creating a task-based field maintenance operation is provided. A method of interacting with a field device menu is also provided.