摘要:
The invention relates to a measurement transmitter for operation in a process plant. The enclosure of the measurement transmitter comprises two mutually separate containers (11, 12), where the transducer for converting the process-related, physical variable into an appropriate electrical variable is housed in the one container (11), and an electronic circuit (22) is arranged in the other container (12). The two containers (11, 12) have complimentary screw threads (51, 52) to each other, and are screwed together directly. The screw connection of the two containers (11, 12) comprises a transformer made up of two parts (31, 32), whose parts (31, 32) each comprise a winding (41, 42) connected to the circuitry (21, 22) of the respective container (11, 12).
摘要:
The invention relates to a measurement transmitter for operation in a process plant. The enclosure of the measurement transmitter comprises two mutually separate containers (11, 12), where the transducer for converting the process-related, physical variable into an appropriate electrical variable is housed in the one container (11), and an electronic circuit (22) is arranged in the other container (12). The two containers (11, 12) have complimentary screw threads (51, 52) to each other, and are screwed together directly. The screw connection of the two containers (11, 12) comprises a transformer made up of two parts (31, 32), whose parts (31, 32) each comprise a winding (41, 42) connected to the circuitry (21, 22) of the respective container (11, 12).
摘要:
The disclosure relates to an actuating drive for control of an actuating element for automation in process installations. An exemplary actuating device drive for control of an actuating element comprising: a position detection device configured for detection of an actual position of the actuating element; a regulator unit configured for operational connection with the position detection device for comparison of an actual position with a predeterminable set position and for production of an actuating signal for driving the actuating drive, wherein the position detection device has a pattern support, at least part of whose surface is covered by a pattern which can be scanned optically; and a stationary optical scanning device, whose optical axis is aligned with the pattern.
摘要:
The invention relates to a diagnostic method for a final control element (2) driven by auxiliary power, in which the auxiliary power is supplied by means of an actuator for converting an electrical manipulated variable into a physical variable of the auxiliary power, where the elements of the actuator form a control loop. It is proposed to operate the actuator as a sensor in a direction of action of the signal flow that is opposite to its conventional direction.
摘要:
A process for reduction and/or removal of FXI and FXIa from a source solution containing said coagulation factors and as main components immunoglobulins comprising the following steps: a) contacting the FXI and/or FXIa containing solution with an affinity chromatographic gel wherein heparin or heparan is linked to the matrix material; b) allowing adsorption of FXI and/or FXIa and c) separation of the liquid deprived of FXI and/or FXIa from the adsorption media.
摘要:
The disclosure relates to a method for operation of a functionally modular automation device having a control loop, which device is connected to a feed line whose power is limited. It is proposed that the criterion for activation or deactivation of functional modules of the device is derived from the control error (xw). The functionally modular automation device having a control loop is also disclosed.