公开(公告)号：WO2007139843A2

公开(公告)日：2007-12-06

申请号：PCT/US2007/012317

申请日：2007-05-23

Applicant: ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  NELSON, Scott, D. ,  DAVIS, Dale, S. ,  NELSON, Richard, L. ,  JOHNSON, Amy, K. ,  BROWN, Gregory, C.

Inventor： LONGSDORF, Randy, J. ,  NELSON, Scott, D. ,  DAVIS, Dale, S. ,  NELSON, Richard, L. ,  JOHNSON, Amy, K. ,  BROWN, Gregory, C.

IPC: G08C19/02

CPC classification number: G01F1/50 ,  G01F15/00 ,  G05B19/0428 ,  G05B2219/24033 ,  G08C19/02

Abstract: A field mountable dedicated process diagnostic device (100) is used for diagnosing operation of an industrial control or monitoring system. An input (102) is configured to receive at least one process signal (112A-N) related to operation of the industrial process. A memory (44) contains diagnostic program instructions configured to implement a diagnostic algorithm using the process signal. The diagnostic algorithm is specific to the industrial process. A microcontroller (42) performs the diagnostic program instructions and responsively diagnoses operation of the process based upon the process signal.

Abstract translation: 现场可安装的专用工艺诊断装置（100）用于诊断工业控制或监视系统的操作。 输入（102）被配置为接收与工业过程的操作有关的至少一个过程信号（112A-N）。 存储器（44）包含被配置为使用过程信号实现诊断算法的诊断程序指令。 诊断算法特定于工业过程。 微控制器（42）执行诊断程序指令，并且基于过程信号响应地诊断过程的操作。

公开(公告)号：WO2006039170A2

公开(公告)日：2006-04-13

申请号：PCT/US2005/033893

申请日：2005-09-20

Applicant: ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  DAVIS, Dale, S.

Inventor： LONGSDORF, Randy, J. ,  DAVIS, Dale, S.

IPC: G05B23/02

CPC classification number: G05B23/027

Abstract: A process device (12) for coupling to a two-wire process control loop (18) includes diagnostic circuitry (64) configured to identify a failure or reduced level of performance or provide a prediction of a future failure or reduced level of performance. An output coupled to the two-wire process control loop (18) is configured to provide an analog output on the loop (18) related to an output from the diagnostic circuitry (64). A method is also provided.

Abstract translation: 用于耦合到双线过程控制回路（18）的过程装置（12）包括诊断电路（64），所述诊断电路（64）配置成识别故障或降低的性能水平或提供对未来的预测 失败或降低的性能水平。 耦合到双线过程控制回路（18）的输出被配置为在环路（18）上提供与来自诊断电路（64）的输出相关的模拟输出。 还提供了一种方法。

公开(公告)号：WO2005017544A1

公开(公告)日：2005-02-24

申请号：PCT/US2004/025291

申请日：2004-08-05

Applicant: ROSEMOUNT INC.

Inventor： HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J.

IPC: G01R31/28

CPC classification number: G01R19/2509 ,  G01R19/2506 ,  G05B23/0235 ,  G05B2219/33197 ,  G08C19/02 ,  Y02P90/86

Abstract: A process device (240) for use on an industrial process control system includes a quiescent current sensor (278) configured to sense quiescent current draw of the process device (240). Diagnostic circuitry (246) determines a diagnostic condition of the process device (240) as a function of the sensed quiescent current.

Abstract translation: 用于工业过程控制系统的过程装置（240）包括被配置为感测过程装置（240）的静态电流消耗的静态电流传感器（278）。 诊断电路（246）根据感测到的静态电流确定过程装置（240）的诊断状况。

公开(公告)号：WO1996010730A2

公开(公告)日：1996-04-11

申请号：PCT/US1995011532

申请日：1995-09-11

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  McCOY, Steven, J. ,  SCHUMACHER, Mark, S. ,  KIELB, John, A. ,  PALAN, Donald, F. ,  EDWARDS, Grant, B. ,  LONGSDORF, Randy, J. ,  TEMPLIN, James, E.

IPC: G01D03/08

CPC classification number: H02H9/008 ,  G01D3/08 ,  G01F23/284

Abstract: A barrier device (2) threadably mounts to a cabling aperture (24) on a field mounted transmitter (6). The field mounted transmitter (6) receives and transmits signals, and is wholly powered by a current loop circuit (14). The barrier device (2) has a conductive housing with at least a first (72) and a second (74) aperture and a pair of conductors (14) passing through the first aperture (72) of the barrier device (2), for connecting to a terminal block (4) in the transmitter (6). A pair of signal terminals (16, 18) are mounted in the second aperture (74) of the barrier device (6). The signal terminals (16, 18) are connectable to a handheld communicator, which is used to calibrate, monitor and test the transmitter (6). A barrier circuit (22) is mounted in the housing and is electrically connected between the signal terminals (16, 18) and the conductors (14).

Abstract translation: 阻挡装置（2）可螺纹地安装在现场安装的发射器（6）上的布线孔（24）上。 现场安装的发射机（6）接收和发射信号，并且由电流环路电路（14）完全供电。 阻挡装置（2）具有至少具有第一（72）和第二（74）孔的导电壳体和穿过阻挡装置（2）的第一孔径（72）的一对导体（14），用于 连接到发射器（6）中的端子块（4）。 一对信号端子（16,18）安装在阻挡装置（6）的第二孔（74）中。 信号端子（16,18）可连接到手持通信器，用于校准，监视和测试发射器（6）。 阻挡电路（22）安装在壳体中并电连接在信号端子（16,18）和导体（14）之间。

公开(公告)号：WO1992005408A1

公开(公告)日：1992-04-02

申请号：PCT/US1991006868

申请日：1991-09-20

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  LONGSDORF, Randy, J. ,  HEDTKE, Robert, C. ,  NELSON, Richard, L.

IPC: G01F23/14

CPC classification number: G01F23/14

Abstract: A differential pressure transmitter (42) is used to measure the level of settled water (14) residing below a process fluid (12) and at the bottom of a tank (10). The pressure transmitter (42) measures a pressure difference between a pressure tap (48) of the tank located below an upper level of the higher specific gravity settled water and a second pressure tap (24) of a reference column (22, 86, 88) containing only lower specific gravity process fluid and opening to the tank (10) at a level (26) above the settled water. The differential pressure is a function of the specific gravity or density of the water (14) and a pressure head of the waterc (14). Utilizing the differential pressure and specific gravity data the height of the water (14) in the tank (10) can be determined. The reference column (22, 86, 88) is capable of being purged to remove any water or other impurities. A portion of the reference column (22, 86, 88) extends at least as high vertically as the lighter fluid (12) in the tank (10). The reference column can be a separate column (86, 88) that can be closed off from the tank (10) to permit the differential transmitter (42) to sense differential pressure changes due to level changes of fluid in the tank (10).

Abstract translation: 差压变送器（42）用于测量位于处理流体（12）下方和罐（10）底部的沉降水（14）的水平。 压力变送器（42）测量位于较高比重沉淀水的较高水平的罐的压力分接头（48）和参考柱（22,86,88）的第二压力分接头（24）之间的压力差 ），其仅含有较低的比重过程流体并且在沉降的水之上的水平（26）处开启到罐（10）。 差压是水（14）的比重或密度和水（14）的压头的函数。 利用差压和比重数据，能够确定罐（10）中的水（14）的高度。 参考柱（22,86,88）能够被吹扫以除去任何水或其它杂质。 参考柱（22,86,88）的一部分至少与罐（10）中的较轻液体（12）垂直地延伸。 参考柱可以是可以从罐（10）关闭的单独的列（86,88），以允许差动变送器（42）感测由于罐（10）中的流体的水平变化引起的压差变化。

公开(公告)号：EP1803041B1

公开(公告)日：2019-06-26

申请号：EP05807270.3

申请日：2005-09-20

Applicant: Rosemount Inc.

Inventor： LONGSDORF, Randy, J. ,  DAVIS, Dale, S.

IPC: G05B23/02

公开(公告)号：EP1864268A2

公开(公告)日：2007-12-12

申请号：EP06738640.9

申请日：2006-03-16

Applicant: Rosemount, Inc.

Inventor： LONGSDORF, Randy, J. ,  HUISENGA, Garrie, D. ,  JOHNSON, James, A.

IPC: G08C19/02

CPC classification number: G01R19/2509 ,  G05B19/0425 ,  G05B2219/25189 ,  G05B2219/25428 ,  G08C19/02

Abstract: A process device (12) is configured for coupling to a two wire process control loop (18) . Loop current output circuitry (60) is configured to apply an output current to the two wire process control loop (18) . Loop current verification circuitry (64) is coupled to the two wire process control loop (18) and configured to detect errors in the applied output current. At least a portion of the loop current verification circuitry (64) is independent from the loop current output circuitry (60) .

公开(公告)号：EP0598830B1

公开(公告)日：1998-11-25

申请号：EP92918335.8

申请日：1992-08-07

Applicant: ROSEMOUNT INC.

Inventor： LONGSDORF, Randy, J. ,  NELSON, Richard, L.

IPC: H02H9/06

CPC classification number: H02H9/06

Abstract: A protection circuit is provided for protecting sensitive electrical field instruments from a transient voltage strike and for ensuring that the instruments will meet safety approval during high potential voltage testing. The first and second wires (52, 54) of a two-wire circuit are connected to a first and second terminal respectively. A first surge arrestor electrically couples a first path between the first and second terminal. An impedance (100, 102) and a transient suppressor (90) are connected in series and electrically couple a second path between the first and second terminal. The second path is coupled in parallel with the first path between the first and second terminal and is coupled closer to the internal components of the electrical instruments to be protected than is the first path. A second surge arrestor (106) is electrically coupled between the second terminal and ground, and has a higher voltage breakdown potential than the first surge arrestor (94).

公开(公告)号：EP2067088A2

公开(公告)日：2009-06-10

申请号：EP07852513.6

申请日：2007-10-03

Applicant: Rosemount, Inc.

Inventor： HUISENGA, Garrie, D. ,  LONGSDORF, Randy, J. ,  LATTIMER, Donald, R.

IPC: G05B23/02 ,  H04L1/24

CPC classification number: H04L1/24

Abstract: A diagnostic device (50) for coupling to a process control loop (18) includes digital communication circuitry (52) configured to receive a digital communication signal from the process control loop (18). The digital communication signal is a digitally modulated analog signal on the process control loop (18) which is modulated to a plurality of discrete analog signal levels representative of digital values. Diagnostic circuitry (54) diagnoses operation of the process control loop (18) which may include field devices of the process control loop based upon the digitally modulated analog signal.

公开(公告)号：EP1668328A2

公开(公告)日：2006-06-14

申请号：EP04785148.0

申请日：2004-09-27

Applicant: ROSEMOUNT INC.

Inventor： LONGSDORF, Randy, J. ,  BLUMEYER, Chad, C.

IPC: G01H1/00

CPC classification number: G05B23/027

Abstract: A process device for use in an industrial process control or monitoring system is configured to couple to a process. A vibration sensor is configured to sense vibrations. Diagnostic circuitry provides a diagnostic output based upon the sensed vibrations.

Abstract translation: 用于工业过程控制或监视系统的过程设备被配置为耦合到过程。 振动传感器被配置成感测振动。 诊断电路根据检测到的振动提供诊断输出。