FISHER_DVC6000定位器调试说明

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FIELDVUER DVC6000 Series Digital Valve

Controllers

FIELDVUER

DVC6000 Series digital valve

DVC6000 Series digital valve controllers can becontrollers (figures 1 and 2) are communicating,used on single- or double-acting actuators. The

microprocessor-based current-to-pneumatic

digital valve controller receives feedback of the valveinstruments. In addition to the traditional function oftravel position plus supply and actuator pneumaticconverting a current signal to a valve-positionpressure. This allows the instrument to diagnose notpressure signal, DVC6000 Series digital valve

only itself, but also the valve and actuator to which itcontrollers, using HARTR communications protocol,is mounted. This provides you with very cost

give easy access to information critical to processeffective maintenance information, so that requiredoperation. This can be done using a Model 375 Fieldmaintenance can be performed on the instrumentCommunicator at the valve or at a field junction box,and valve when there really is a need.

or by using a personal computer or a systemconsole within the control room. Using HARTWiring is economical because DVC6000 Series

communication protocol, information can bedigital valve controllers use two-wire 4 to 20 mA loopintegrated into a control system or received on apower. This provides for low cost replacement ofsingle loop basis.

existing analog instrumentation. The DVC6000Series digital valve controller’s two-wire design

avoids the high cost of running separate power andsignal wiring.

W7957-1 / IL

W7960-1 / IL

Figure 1. Type DVC6010 Digital Valve Controller Mounted on

Figure 2. Type DVC6010 Digital Valve Controller Mounted on

a Sliding-Stem Valve ActuatorType 585C Piston Actuator

2

10X857201D

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(continued)

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actuator has been tested to 15 meters (50 feet) maximum without performance degradation.2. These terms are defined in ISA Standard S51.1.

3. Normal m3/hr--Normal cubic meters per hour at 0_C and 1.01325 bar, absolute; Scfh--Standard cubic feet per hour at 60_F and 14.7 psia.4. Values at 1.4 bar (20 psig) based on a single-acting direct relay; values at 5.5 bar (80 psig) based on double-acting relay.

5. Not applicable for Type DVC6020 digital valve controllers in long-stroke applications or remote-mounted Type DVC6005 digital valve controllers with long pneumatic tubing lengths.6. Approvals for remote-mounted units are pending.

7. The Low Bleed Relay is offered as standard relay for DVC6000 ESD tier, used for On/Off applications.

Features

DImproved Control—Two-way digital

communications give you current valve conditions.You can rely on this real-time information to makesound process management decisions. By analyzingvalve dynamics through AMS ValveLink Software ,you can identify control areas needing improvement

and maintain a high level of system performance.DEnvironmental Protection—You can avoidadditional field wiring by connecting a leak detectoror limit switch to the auxiliary terminals in the

DVC6000 Series digital valve controller. In this way,the instrument will issue an alert if limits areexceeded.

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DEnhanced Safety—You can check instrumentand valve operation and keep the process runningsmoothly and safely from a remote location. Accessis possible at a field junction box, marshalling panel,or within the safety of the control room using either a375 Field Communicator, a notebook PC, or asystem workstation. Your exposure to hazardousenvironments is minimized and you can avoid havingto access hard-to-reach valve locations.

DHardware Savings—DVC6000 Series digitalvalve controllers, when used in an integrated

system, allow you to realize significant hardware andinstallation cost savings by replacing other devicesin the process loop, such as positioners and limitswitches, with a FIELDVUE digital valve controller.DBuilt to Survive—Field-tough DVC6000 Seriesdigital valve controllers have fully encapsulatedprinted wiring boards that resist the effects of

vibration, temperature, and corrosive atmospheres.A separate weather-tight field wiring terminal boxisolates field-wiring connections from other areas ofthe instrument.

DIncreased Uptime—With the self-diagnosticcapability of DVC6000 Series digital valvecontrollers, you can answer questions about a

valve’s performance, without pulling the valve fromthe line. You can run diagnostics (I/P and relayintegrity, travel deviation, and on-line friction anddeadband analysis and trending) while the valve is inservice and operating. You can also compare thepresent valve/actuator signature (bench set, seatload, friction, etc.) against previously stored

signatures to discover performance changes, beforethey cause process control problems.

DFaster Commissioning—The two-waycommunication capability allows you to quicklycommission loops by remotely identifying each

instrument, verifying its calibration, reviewing storedmaintenance notes, and more.

DEasy Maintenance—DVC6000 Series digitalvalve controllers are modular in design. The singlemaster module can be removed from the instrumenthousing without disconnecting the field wiring,pneumatic connections or stem linkages. Thismodule contains the critical sub-modules socomponent removal is quick and simple.

Diagnostics

DVC6000 Series digital valve controllers are packedwith user-configurable alerts and alarms. Whenintegrated with a HART communication-based

system, these flags provide real-time notification ofcurrent and potential valve and instrument problems.With AMS ValveLinkR Software, tests can be

performed to identify problems with the entire controlvalve assembly. Diagnostic capabilities available arePerformance Diag …… 此处隐藏：15383字，全部文档内容请下载后查看。喜欢就下载吧 ……