THERMAL MANAGEMENT IN A PRESSURE TRANSMITTER
    32.
    发明公开
    THERMAL MANAGEMENT IN A PRESSURE TRANSMITTER 有权
    温度管理在压力转换器

    公开(公告)号:EP1216403A1

    公开(公告)日:2002-06-26

    申请号:EP00966927.6

    申请日:2000-09-26

    Applicant: ROSEMOUNT INC.

    Abstract: A pressure transmitter (20, 21, 60, 150, 190, 200, 201) with a transmitter housing (22, 62, 152) having an outer wall (64, 154) providing thermal resistance (66). The outer wall (64, 154) extends from an isothermal island (68, 156) at a first end (70) to a heat sink island (72, 159) at a second end (74). The isothermal island (68, 156) includes a fluid inlet (38, 76, 158, 202), and pressure and temperature sensors (34, 78, 164; 42, 80, 166). The heat sink island (72, 159) includes a primary heat load device (40, 41, 110, 174) that is heat sunk to an outer shell (104, 170) of an electrical connector. The connector (102, 168) contacts (24, 26, 108, 172) carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device (40, 41, 110, 174). A circuit board (120, 176) controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure.

    FIELD-MOUNTED CONTROL UNIT
    33.
    发明公开
    FIELD-MOUNTED CONTROL UNIT 失效
    在工作环境中安装的控制单元。

    公开(公告)号:EP0495001A1

    公开(公告)日:1992-07-22

    申请号:EP90916636.0

    申请日:1990-10-01

    Applicant: ROSEMOUNT INC.

    Abstract: Une unité de commande (22) intelligente installée sur site, destinée à réguler un processus, reçoit des signaux et envoie une sortie d'instructions par un circuit (18) à deux fils alimentant l'unité de commande (22). Une partie d'entrée (50) reçoit les signaux, lesquels peuvent être des instructions représentatives d'instructions ou d'ensembles d'instructions, des variables de processus détectées par des unités de commande extérieures ou des valeurs de consigne représentatives d'un état de processus voulu. Les instructions sont représentatives d'une condition de commande du processus, et règlent une partie de commandes (52) se trouvant dans l'unité de commande (22), afin de produire la sortie d'instructions (58) conformément à la condition de commande. La sortie d'instructions (58) peut être une fonction de la différence entre la valeur de consigne du processus et une variable de processus, ou une fonction d'une combinaison linéaire d'une variable de processus ainsi que son intégral de temps calculé et des fonctions dérivées du temps. Une partie de détection (100) se trouvant dans ladite unité de commande (22) peut détecter et établir l'échelle d'une variable de processus afin de produire également la sortie d'instructions (58). Ladite unité de commande (22) peut comprendre une partie régulatrice, commandée par la sortie d'instructions (58), laquelle régule l'application d'une force mécanique, hydrolique, pneumatique ou électromagnétique appliquée au processus.

    TRANSMITTER WITH REMOVABLE LOCAL OPERATOR INTERFACE
    34.
    发明授权
    TRANSMITTER WITH REMOVABLE LOCAL OPERATOR INTERFACE 有权
    带倒车本地用户接口站

    公开(公告)号:EP1979720B1

    公开(公告)日:2012-05-02

    申请号:EP06845044.4

    申请日:2006-12-11

    CPC classification number: G01D18/008

    Abstract: A process variable transmitter (100) for use with a removable operator interface (202) has a non-volatile memory (204) and a latching component (210). The non-volatile memory (204) stores device settings (206). The latching component (210) prohibits changes to transmitter settings if the removable operator interface (202) is absent. Circuitry in the transmitter (100) detects the presence of the removable operator interface (202). The removable operator interface (202) can include zero and span settings.

    RF ADAPTER FOR FIELD DEVICE WITH LOW VOLTAGE INTRINSIC SAFETY CLAMPING
    35.
    发明公开
    RF ADAPTER FOR FIELD DEVICE WITH LOW VOLTAGE INTRINSIC SAFETY CLAMPING 审中-公开
    RF适配器,与使用设备,本质安全夹紧低压

    公开(公告)号:EP2294488A2

    公开(公告)日:2011-03-16

    申请号:EP09767061.6

    申请日:2009-06-17

    Abstract: An adapter (300) for coupling to a process control transmitter (308) of the type used to monitor a process variable in an industrial process includes a first connection configured to couple to a first side of a two wire process control loop (302), a second connection configured to couple to a second side of the two wire process control loop (302) and in series with a first connection to a process control transmitter (308), and a third connection configured to couple to a second connection of the process control transmitter (308). Wireless communication circuitry is coupled to at least the third connection and is configured to provide wireless communication for the process control transmitter (308). Intrinsic safety circuitry (460) coupled to at least one of the first, second and third connections is configured to limit transfer of electrical energy to a value which is less than an intrinsic safety value.

    TRANSMITTER WITH REMOVABLE LOCAL OPERATOR INTERFACE
    36.
    发明公开
    TRANSMITTER WITH REMOVABLE LOCAL OPERATOR INTERFACE 有权
    带倒车本地用户接口站

    公开(公告)号:EP1979720A1

    公开(公告)日:2008-10-15

    申请号:EP06845044.4

    申请日:2006-12-11

    CPC classification number: G01D18/008

    Abstract: A process variable transmitter (100) for use with a removable operator interface (202) has a non-volatile memory (204) and a latching component (210). The non-volatile memory (204) stores device settings (206). The latching component (210) prohibits changes to transmitter settings if the removable operator interface (202) is absent. Circuitry in the transmitter (100) detects the presence of the removable operator interface (202). The removable operator interface (202) can include zero and span settings.

    FIELD DEVICE INCORPORATING CIRCUIT CARD ASSEMBLY AS ENVIRONMENTAL AND EMI/RFI SHIELD
    37.
    发明公开
    FIELD DEVICE INCORPORATING CIRCUIT CARD ASSEMBLY AS ENVIRONMENTAL AND EMI/RFI SHIELD 有权
    EINSATZORT-EINRICHTUNG MIT EINER LEITERPLATTENBAUGRUPPE ALS UMGEBUNGS- UND EMI / RFI-ABSCHIRMUNG

    公开(公告)号:EP1790204A1

    公开(公告)日:2007-05-30

    申请号:EP05798114.4

    申请日:2005-09-15

    Abstract: A field hardened industrial device (200) is described with a housing (208) of the device having electrically conductive walls surrounding a cavity (206) with an open end. An electronics assembly (292) is adapted to fit within the cavity. The device includes a circuit card assembly (270), which is a multi-layered printed wiring board with pass-through electrical connections and an embedded ground plane (350) electrically coupled to the housing (202) to shield the electronics assembly (292) from electromagnetic interference and to provide environmental protection to the electronics assembly.

    Abstract translation: 描述了场强淬透的工业设备,其中该设备的外壳具有围绕具有开放端的空腔的导电壁。 电子组件适于装配在腔内。 该装置包括电路卡组件,其是具有通过电连接的多层印刷线路板和电耦合到壳体的嵌入式接地平面,以屏蔽电子组件免受电磁干扰并向电子组件提供环境保护 。

    THERMAL MANAGEMENT IN A PRESSURE TRANSMITTER
    38.
    发明授权
    THERMAL MANAGEMENT IN A PRESSURE TRANSMITTER 有权
    温度管理在压力转换器

    公开(公告)号:EP1216403B1

    公开(公告)日:2007-01-03

    申请号:EP00966927.6

    申请日:2000-09-26

    Applicant: ROSEMOUNT INC.

    Abstract: A pressure transmitter (20, 21, 60, 150, 190, 200, 201) with a transmitter housing (22, 62, 152) having an outer wall (64, 154) providing thermal resistance (66). The outer wall (64, 154) extends from an isothermal island (68, 156) at a first end (70) to a heat sink island (72, 159) at a second end (74). The isothermal island (68, 156) includes a fluid inlet (38, 76, 158, 202), and pressure and temperature sensors (34, 78, 164; 42, 80, 166). The heat sink island (72, 159) includes a primary heat load device (40, 41, 110, 174) that is heat sunk to an outer shell (104, 170) of an electrical connector. The connector (102, 168) contacts (24, 26, 108, 172) carry a current controlled by the transmitter, and a portion of the current is conducted by a primary heat load device (40, 41, 110, 174). A circuit board (120, 176) controls the current to represent the pressure. A high accuracy, temperature compensated current output represents pressure.

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