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| No.6943955
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Information Name: | Supply Samson positioning device 3731-3 |
Published: | 2012-07-30 |
Validity: | 9999 |
Specifications: | 3731-3 |
Quantity: | 1000.00 |
Price Description: | |
Detailed Product Description: | Samson positioning device 3731-3 Digital electric valve positioner Application: Digital single or double acting electric valve positioner for the assembly of pneumatic linear or rotary control valves, self-calibration, automatic adaptation to the control valve Type: The direct connection of digital electric valve positioner to SAMSON control valves with NAMUR flange connection or comply with IEC60654-6 standard pole bracket, as well as the connection of the rotary actuator the VDI/VDE3845 standard Type 3731-3: the flameproof Digital electric valve positioner, HART communication with the SSP serial confessions local communications, the operation of the machine and LC display Technical Data Sheet Rated travel: 3.6 ..... 200mm Opening angle: 24 .... 100 ° Input control signal: 4 ... 20mA Gas source: air source pressure 1.4 ... 6 bar (20 ... 90psi) Maximum output: the output pressure 0 ... 6 bar (0 ... 90psi) Characteristics: Adjustable Protocol / bus: HART Ambient temperature: -40 .... 80 ° C Of protection: IP66 Explosion protection: FM / CSA, ATEX EExd / EExde Additional electrical equipment: valve position switch valve position transmitter Samson electric valve positioner 3731-3 Ex d flameproof digital electric valve positioner with HART? Communication Application Single acting or double acting Ex d flameproof digital electrical valve locator for attachment to pneumatic control valves. Self-calibration, automatic adaptation to the control valve and pneumatic actuator. Input control signal 4 ... 20 mA Travel 3.6 ... 200 m Opening angle of 24 ... 100 ° Digital electric valve positioner pneumatic control valve attachment, the electric control of the control system or controller output signal at a pre-set relations auxiliary pneumatic actuators adjust valve position and to achieve accurate Positioning. Positioner the input control signal (for a given parameter w) and the amount of feedback control valve stroke or rotation angle (adjust the parameter x) compare to deal with, and thus the output of the pneumatic control signal pst (output parameter Number of y) to the pneumatic actuator. Feature ? Can simply assembly to the general stroke or rotary pneumatic actuator SAMSON direct connection (integrated installation), NAMUR flange or assembly in the rod-type yokes of the IEC 60534-6-1 standard pneumatic Control valves, and assembly in the rotary pneumatic actuator according to VDI / VDE 3845 standard ? Any installation position ? Simple single knob button in the danger zone menu invoked operation ? To facilitate reading, according to the reading direction need to choose to change the direction of the LCD display ? TROVIS-VIEW software SSP serial interface to be configured by the PC ? Start automatically variable with four different initialization mode ? Preset parameters - simply adjust the value of the deviation from the standard ? Calibrated travel sensor without gears susceptible to wear Start? In a state of emergency, while production unit does not allow the control valve action of the whole trip, "Sub" initialization mode (substitution) to replace the valve positioner ? Long-term storage of all parameters in non-volatile EEPROM memory (power failure protection) ? Two-wire meter, the minimum load resistance of 450 ohms at 20mA ? Limits adjustable output signal pressure ? Adjustable tight-closing function ? Zero continuous monitoring ? Positioner internal integration working temperature sensor ? Self-diagnosis; information in accordance with NAMUR NE 107 specification or through an optional analog position transmitter ? Integrated EXPERT plus expert diagnostic software (see T 8389 ZH), adapted to adjust the type and switch type of control valve, control valve partial stroke test function applies to safety-related systems ? According to IEC 61508/SIL certification Type Digital electric valve positioner with LCD, this machine can operate with the SSP serial communication interface of the machine diagnostic functions - Model 3731-3 EXPERT plus · digital electrical valve positioner to support the HART? Communication protocols, and diagnostic functions Additional features - Digital contact output with NAMUR (EN 60947-5-6) connection or directly to the PLC, the configuration of the valve position switch or fault alarm output - Digital input - Two-wire analog position transmitter - Force emptying (electromagnetic valve function) Working principle 3731-3 digital electric valve positioner assembly to the pneumatic control valve. Positioner to accept the electric control signal, according to a pre-set relations auxiliary pneumatic control system or controller output to the implementation of structural adjustment valve position and implement Now accurate positioning. Valve positioner the input control signal (for a given parameter w) and the amount of feedback control valve stroke or rotation angle (adjusting parameters x) compare to deal with, and then outputs the corresponding pneumatic control signal pst ( The output variable y) to the pneumatic actuator. 3731-3 digital electric valve positioner mainly by the electronic unit with a microprocessor, analog electrical converter and the output pneumatic amplifier and valve position converted to the corresponding electric The resistance of the valve position sensor (2, angular displacement sensors). When changes in the signal or valve position deviation, the pneumatic actuator pressure or pressure relief. Pneumatic actuator pressure signal can be set by software Set limit to 1.4,2.4,3.7 Pakistan. Emptying of the gas value with a fixed set value A constant air for positive-pressure purge valve locator shell and optimization of the pneumatic amplifier output capacity. Value by the pressure of gas source To electrical converter to provide constant pressure gas source, and not subject to the influence of external gas source pressure changes. Technical data: 3731-3 Ex d flameproof electrical valve positioner Stroke, adjustable: direct assembly to 3277 pneumatic actuator: 3.6 to 30 mm Assembly connection: 3.6 to 200 mm according to IEC 60534-6-1 standard Assembly to rotary pneumatic actuator: 24O to 100 open angle Adjustable travel range: the initialized travel / angle of rotation; maximum adjustable ratio of 1:5 Input control signal: Signal range: 4 to 20 mA two-wire reverse polarity protection * Minimum range 4mAW Static destruction limit: 40V · Internal current limit value 60mA Minimum current: for the LCD display: 3.6mA for the operation of: 3.8mA Load impedance is less than or equal to 9V (corresponding to 450 ohms at 20mA) Communications: Native communication: SAMSON SSP serial interfaces, and interface adapter The required software with 3731-3 (SSP): TROVIS-VIEW database modules HART? Communications: HART? Field communication protocol Impedance in HART? Frequency Range: Receive, about 455 in Europe; to send about 185 in Europe; :3731-3's for handheld field communicator device description (DD), (HART?) For PC: specification 1.2 of the DTM file, the appropriate driver to the application software to support the use of the FDT / DTM (such as PACTware); can be integrated into AMSTM Air source: gas supply pressure: 1.4 to 6 bar (20 to 90 psi) Air quality according to ISO 8573-1 (2001): the maximum particle size and density: 4 · Oil content: 3 Dew Point: 3 must be lower than expected minimum ambient temperature of 10K Output signal pressure: 0 bar to the gas source pressure through the software to limit the 1.4/2.4/3.7 bar ± 0.2 bar Features: Linear / equal percentage / reverse equal percentage Percentage of the butterfly valve, rotary valve spool, and V-ball valve: Linear / Users - Definition: set by the operating software Ordering instructions Ex d flameproof electrical valve positioner Model 3731-3 ... - With pneumatic connections of the ISO 228/1-G? - With / without pressure gauges monitoring signals - Attachment to Type 3277 Pneumatic Actuator (120 to 700 cm2) - IEC 60534-6-1 (NAMUR) standard assembly connected itinerary: ... mm, the rod-type yokes, pole diameter ... mm - Assembled into a 3278 type rotary pneumatic actuator (160cm2) - Assembly to the rotary pneumatic actuator according to VDI / VDE 3845 standard - For double-acting pneumatic actuator reverse pneumatic amplifier, with according to ISO 228-1 referred to / 1 G? Or?-18NPT interface |
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Copyright © GuangDong ICP No. 10089450, Yu-controlled temperature control valve Siemens Equipment Co., Ltd. Jinan West All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 78830 visitor
Copyright © GuangDong ICP No. 10089450, Yu-controlled temperature control valve Siemens Equipment Co., Ltd. Jinan West All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility