OPEN SENSOR DIAGNOSTIC SYSTEM FOR TEMPERATURE TRANSMITTER IN A PROCESS CONTROL SYSTEM
    1.
    发明申请
    OPEN SENSOR DIAGNOSTIC SYSTEM FOR TEMPERATURE TRANSMITTER IN A PROCESS CONTROL SYSTEM 审中-公开
    开放式传感器诊断系统,用于过程控制系统中的温度变送器

    公开(公告)号:WO1996039617A1

    公开(公告)日:1996-12-12

    申请号:PCT/US1996008839

    申请日:1996-06-04

    Applicant: ROSEMOUNT INC.

    CPC classification number: G01K7/20 G01K7/026 G01K15/00

    Abstract: A temperature transmitter (10) in a process control system includes a temperature sensor (16, 18) which senses temperature and provides a sensor output related to sensed temperature. An analog-to-digital converter (28) coupled to the sensor output provides a digitized output related to the sensor output. A microprocessor (22) receives the digitized output, compensates the digitized output and provides a temperature output. Comparison circuitry (12) compares the sensor output to a first threshold VREF1 and provides an inhibit signal to the microprocessor (22) if the sensor is outside of the first threshold VREF1.

    Abstract translation: 过程控制系统中的温度传感器(10)包括温度传感器(16,18),其感测温度并提供与感测温度相关的传感器输出。 耦合到传感器输出的模拟 - 数字转换器(28)提供与传感器输出相关的数字化输出。 微处理器(22)接收数字化输出,补偿数字化输出并提供温度输出。 比较电路(12)将传感器输出与第一阈值VREF1进行比较,并且如果传感器在第一阈值VREF1之外,则向微处理器(22)提供禁止信号。

    CALIBRATION OF PROCESS CONTROL TEMPERATURE TRANSMITTER
    2.
    发明申请
    CALIBRATION OF PROCESS CONTROL TEMPERATURE TRANSMITTER 审中-公开
    过程控制温度变送器的校准

    公开(公告)号:WO1996010166A1

    公开(公告)日:1996-04-04

    申请号:PCT/US1995011433

    申请日:1995-09-07

    Applicant: ROSEMOUNT INC.

    CPC classification number: G01K7/20 G01K7/13 G01K15/00

    Abstract: A transmitter (10) in a process control loop (12) measures temperature. A calibrator (60) includes a known calibration element (64) which is connected to the transmitter (10). Software in the transmitter (10) compares a measured value of the calibration element (64) with the actual value of the calibration element (64) and responsively calibrates the transmitter (10). The calibrator (60) includes a temperature calibration sensor (70) for coupling to a terminal block (14) of the transmitter (10). The temperature calibration sensor (70) provides an actual temperature input to the transmitter (10). The transmitter (10) measures actual temperature of the terminal block (14) and compares actual temperature with a temperature measured by an internal terminal block temperature sensor (34), and responsively calibrates the internal temperature sensor (34).

    Abstract translation: 过程控制回路(12)中的发射器(10)测量温度。 校准器(60)包括已连接到发射器(10)的已知校准元件(64)。 发射器(10)中的软件将校准元件(64)的测量值与校准元件(64)的实际值进行比较,并且响应地校准发射器(10)。 校准器(60)包括用于耦合到发射器(10)的端子块(14)的温度校准传感器(70)。 温度校准传感器(70)向发射器(10)提供实际温度输入。 发射机(10)测量端子台(14)的实际温度,并将实际温度与内部端子块温度传感器(34)测量的温度进行比较,并响应校准内部温度传感器(34)。

    TRANSMITTER WITH MOISTURE DRAINING HOUSING AND IMPROVED METHOD OF MOUNTING RFI FILTERS
    3.
    发明申请
    TRANSMITTER WITH MOISTURE DRAINING HOUSING AND IMPROVED METHOD OF MOUNTING RFI FILTERS 审中-公开
    具有水分排水装置的变送器和安装RFI过滤器的改进方法

    公开(公告)号:WO1996005483A1

    公开(公告)日:1996-02-22

    申请号:PCT/US1995009673

    申请日:1995-08-01

    Applicant: ROSEMOUNT INC.

    CPC classification number: H05K5/0213 G01D11/245 H05K5/069

    Abstract: A transmitter (100) transmitting a sensed process variable over a conductor (134A, 134B) includes a cylindrical housing (102) having a terminal compartment (110) and an electronics compartment (108) separated by a bulkhead (106). The terminal compartment (110) used for conductor connection is subject to moisture accumulation. An access channel (136) fully intersects an internal surface of terminal compartment (110) such that the access channel (136) drains moisture from the terminal compartment (110) across a range of mounting orientations. The transmitter (100) includes a circuit (104) in the electronics compartment (108) for compensating a process variable and providing the compensated process variable via a feedthrough circuit assembly (142) in the bulkhead (106), which in one embodiment, includes an encapsulated radio frequency interference filter (144), to terminals (132A, 132B) in the terminal compartment (110) for coupling to a conductor (134A, 134B) that is connected to an external controller.

    Abstract translation: 在导体(134A,134B)上传输感测到的过程变量的变送器(100)包括具有端子室(110)的圆柱形壳体(102)和由隔板(106)分开的电子室(108)。 用于导体连接的端子室(110)受到水分积聚。 进入通道(136)与端子室(110)的内表面完全相交,使得进入通道(136)在一定范围的安装方向上从端子室(110)排出水分。 发射器(100)包括在电子隔室(108)中的电路(104),用于补偿过程变量,并且经由隔板(106)中的馈通电路组件(142)提供经补偿的过程变量,在一个实施例中,馈送电路组件包括 封装的射频干扰滤波器(144)连接到连接到外部控制器的导体(134A,134B)上的端子室(110)中的端子(132A,132B)。

    MULTIFUNCTION ISOLATION TRANSFORMER
    4.
    发明申请
    MULTIFUNCTION ISOLATION TRANSFORMER 审中-公开
    多功能隔离变压器

    公开(公告)号:WO1991013417A1

    公开(公告)日:1991-09-05

    申请号:PCT/US1991001210

    申请日:1991-02-21

    Applicant: ROSEMOUNT INC.

    CPC classification number: G08C19/02 H01F2019/085

    Abstract: A process transmitter (50) transmits a 4-20 mA current representing a sensed parameter to a loop (52) which energizes the transmitter (50). An output circuit (60) receives energization from the loop (52) and controls the 4-20 mA output as a function of a sensor data input. The output circuit (60) further generates a transformer driver output which also serves as a clock for isolated circuitry (106). A sensor circuit (82) generates a transformer driver output representing the sensed parameter. An isolation transformer (76) driven by the driver output excites the sensor circuit (82) and provides a clock reference as a function of the driver output oscillation to the sensor circuit (82) . The isolation transformer (76) is a single coupling device which couples energization, clock reference, sensor data and programming data across an electrically insulating barrier between the output circuit (50) and the sensor circuit (82).

    Abstract translation: 过程变送器(50)将表示感测参数的4-20mA电流传送到给发射器(50)通电的回路(52)。 输出电路(60)从环路(52)接收通电并根据传感器数据输入控制4-20mA输出。 输出电路(60)还产生变压器驱动器输出,其也用作隔离电路(106)的时钟。 传感器电路(82)产生表示所感测参数的变压器驱动器输出。 由驱动器输出驱动的隔离变压器(76)激励传感器电路(82),并提供与传感器电路(82)的驱动器输出振荡的函数关系的时钟参考。 隔离变压器(76)是单个耦合装置,其在输出电路(50)和传感器电路(82)之间的电绝缘屏障上耦合通电,时钟参考,传感器数据和编程数据。

    OPEN SENSOR DIAGNOSTIC SYSTEM FOR TEMPERATURE TRANSMITTER IN A PROCESS CONTROL SYSTEM
    5.
    发明公开
    OPEN SENSOR DIAGNOSTIC SYSTEM FOR TEMPERATURE TRANSMITTER IN A PROCESS CONTROL SYSTEM 失效
    诊断系统用于确定变压器温度断路传感器,过程控制系统

    公开(公告)号:EP0830576A1

    公开(公告)日:1998-03-25

    申请号:EP96917159.0

    申请日:1996-06-04

    Applicant: ROSEMOUNT INC.

    CPC classification number: G01K7/20 G01K7/026 G01K15/00

    Abstract: A temperature transmitter (10) in a process control system includes a temperature sensor (16, 18) which senses temperature and provides a sensor output related to sensed temperature. An analog-to-digital converter (28) coupled to the sensor output provides a digitized output related to the sensor output. A microprocessor (22) receives the digitized output, compensates the digitized output and provides a temperature output. Comparison circuitry (12) compares the sensor output to a first threshold VREF1 and provides an inhibit signal to the microprocessor (22) if the sensor is outside of the first threshold VREF1.

    MULTIFUNCTION ISOLATION TRANSFORMER
    9.
    发明公开
    MULTIFUNCTION ISOLATION TRANSFORMER 失效
    MEHRFUNKTIONSISOLATIONSTRANSFORMATOR。

    公开(公告)号:EP0518916A1

    公开(公告)日:1992-12-23

    申请号:EP91905145.0

    申请日:1991-02-21

    Applicant: ROSEMOUNT INC.

    CPC classification number: G08C19/02 H01F2019/085

    Abstract: Un émetteur de traitement (50) transmet un courant de 4 à 20 mA représentant un paramètre détecté à une boucle (52), laquelle excite l'émetteur (50). Un circuit de sortie (50) reçoit l'excitation provenant de la boucle (52) et régule la sortie de 4 à 20 mA en fonction d'une entrée de données de détecteur. Le circuit de sortie (60) produit également une sortie de commande de transformateur, laquelle sert aussi d'horloge pour le circuit isolé (106). Un circuit détecteur (82) produit une sortie de commande de transformateur représentant le paramètre détecté. Un transformateur d'isolement (76) commandé par la sortie de commande excite le circuit détecteur (82) et produit une référence d'horloge en fonction de l'oscillation de la sortie de commande jusqu'au circuit détecteur (82). Le transformateur d'isolement (76) est un dispositif à couplage unique couplant l'excitation, la référence d'horloge, des données de détecteur ainsi que des données de programmation sur une barrière d'isolement électrique située entre le circuit de sortie (50) et le circuit détecteur (82).

    TWO-WIRE FIELD-MOUNTED PROCESS DEVICE
    10.
    发明公开
    TWO-WIRE FIELD-MOUNTED PROCESS DEVICE 无效
    FELDSTEUEREINHEIT MIT ZWEI ADERN

    公开(公告)号:EP1290513A2

    公开(公告)日:2003-03-12

    申请号:EP01933150.3

    申请日:2001-05-08

    Applicant: ROSEMOUNT INC.

    Abstract: A two-wire field-mounted process device (16) with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can be coupled to multiple sensors or actuators (32, 34), respectively. The process device (16) is wholly powered by the two-wire process control loop (14). The process device (16) includes a controller (40) adapted to measure one or more characteristics of sensors (20, 22, 24, 26, 28, 30) coupled to an input channel (42, 44, 46) and to control actuators coupled to an output channel (48). The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator (36) that is adapted to communicate over the two-wire loop.

    Abstract translation: 具有多个隔离通道的双线现场安装处理装置(16)包括可以是输入通道或输出通道的通道。 给定的输入或输出通道可以分别耦合到多个传感器或致动器(32,34)。 处理装置(16)由两线制过程控制回路(14)完全供电。 处理装置(16)包括适于测量耦合到输入通道(42,44,46)的传感器(20,22,24,26,28,30)的一个或多个特性的控制器(40),并且控制致动器 耦合到输出通道(48)。 控制器还可以适于执行用于生成的控制算法,其将过程输入信息与过程输出命令相关联。 处理装置还包括适于通过双线环通信的环路通信器(36)。

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