Category: Emerson

Valve Diagnostics

With the DVC7K digital valve controller’s enhanced memory,

it is able to provide a comprehensive library of valve

diagnostic alerts, as shown in Figure 3. These diagnostics

and recommended actions are easily accessed with an

Emerson handheld communicator or from the LUI. When

installed as part of a HART communicating system, the

DVC7K delivers prompt notification of current or potential

equipment issues directly to the asset management system

and supports NAMUR NE107 alert categorization.

Alerts assist in identification and notification of the

following situations:

• Stroke open and/or stroke close degradation

•Valve travel deviation identifies stuck valves that don’t

make full travel

• Cycle count / Travel Accumulator

• Various instrument mechanical and electrical issues

Leverage an Emerson handheld communicator to view the

instrument Event Log which stores alerts in memory on

board the DVC7K, view graphical data, and quickly identify

the stroke open and stroke close times.

Value

• Hardware Savings — When installed in an integrated

control system, significant hardware and installation cost

savings can be achieved. Valve accessories such as limit

switches and position transmitters can be eliminated due

to the integrated position transmitter and switch option.

Solenoid valves can also be eliminated with the On/Off

application mode capabilities

• Increased Uptime — The self‐diagnostic capability

of the DVC7K provides valve performance and health

evaluation without shutting down the process or pulling

the valve assembly from the line.

• Improved Maintenance Decisions — Digital

communication provides easy access to the condition

of the valve. Sound decisions can be made by analysis

of valve information through any HART communicating

asset management software

Ease of Use

• Enhanced Safety — The DVC7K is a HART®

communicating device; information can be accessed

anywhere along the loop. This flexibility can reduce

exposure to hazardous environments and make it easier

to evaluate valves in hard-to-reach locations.

• Local User Interface (LUI) — The full text display in

the local interface is easy to navigate due to the six

button LUI (Figure 2). Each unit can be configured to

display Arabic, Chinese, Czech, English, French, German,

Italian, Japanese, Korean, Polish, Portuguese, Russian or

Spanish. View the Travel vs. Travel Setpoint, Instrument

Mode and Valve Health instantly from the home screen.

• Valve Health — Identify the health status of the valve

assembly at a distance with the NE 107 LED indicator.

Quickly troubleshoot issues and identify recommended

actions with Advice at the Device. Additionally, use the

LUI to view primary variables like supply pressure and

input current.

• Faster Commissioning — HART communications allow

the user to quickly commission loops with a variety

of tools from a remote location or locally at the valve

assembly with the LUI.

• Flexible Connectivity — Emerson’s secure Bluetooth®

wireless technology implementation (future release)

enables ability to see health across multiple valves.

• Easy Maintenance — The DVC7K is modular in design.

Critical working components can be replaced without

removing field wiring or pneumatic tubing.

Features

Reliability

• Linkage‐Less Non‐Contact Position Feedback — The

high performance, linkage-less feedback system, shown

in Figure 1. eliminates physical contact between the valve

stem and the instrument. There is no wearing of parts

so cycle life is maximized. Additionally, the elimination

of levers and linkages reduces the number of mounting

parts and mounting complexity. Instrument replacement

and maintenance is simplified because the feedback

parts stay connected to the actuator stem.

• Built to Survive — The DVC7K’s field-proven conformal

coated electronics resist the effects of vibration,

temperature and corrosive atmospheres per the

ISA.75.13 standard. A weather‐tight housing construction

protects the wiring terminal box and critical components

from harsh environmental conditions.

• Eliminate Solenoids  — DVC7Ks in the On/Off

Application Mode provide a more reliable solution over

traditional solenoid valves. They also provide diagnostic

alerts to support early identification of problems

The FIELDVUE DVC7K digital valve controller is reliable

and intuitive, featuring diagnostics that are targeted for

your On/Off applications. It converts a 4-20 mA or 24 V DC

input signal into a pneumatic output signal that controls

the actuator on the valve. Perform setup and configuration

procedures, check the valve health, and get Advice at the

Device™ using the simple-to-use Local User Interface

(LUI). The interface can be configured to support multiple

languages with a few button pushes.

Performance

• Accurate and Responsive — The two‐stage instrument

design provides quick response. Additionally, the DVC7K

allows users to customize the performance of their valve,

with a configurable ramp open rate and ramp closed rate.

Interactive Display

Access locally while maintaining safety.

The backlit liquid crystal display provides a local operator direct access

to the device, without removing the front cover. The display provides

four infrared ‘buttons’ that allow you to securely sign in and then

interact with the flow computer in the hazardous environment without

compromising safety. Four LEDs on the display provide you alarms and

status information.

FBxWifi™

Easily connect through a secure wireless network.

FBxWifi enables you to connect your laptop or tablet to the flow

computer through a secure wireless connection. Once connected, you

can use FBxConnect configuration software to view process values, edit

configuration parameters, update set-points and collect logs stored in the

flow computer — all while never stepping foot in the hazardous area.

Integrated Firmware

Everything you need, already there.

The integrated firmware of the FB2000-Series Flow Computer

contains all the functionality you’re looking for. A full set of global

calculations including support for Orifice, Cone, Venturi, Nozzle &

Rosemount Conditioning plate DP meters as well as Turbine, Coriolis

and Auto Adjust linear meters are embedded in the unit. Simply

select the software you plan to use and audit without the need for

extra user programs and licenses.

Multivariable Sensor

Superior technology, unparalleled precision.

Equipped with the latest Rosemount™ multivariable measurement sensor

(MVS) technology and engineered for optimal flow performance, the MVS

delivers unparalleled accuracy over a wide range of operating conditions.

Pressure inputs on the sensor are used to measure both differential (DP)

and static (absolute or gauge) pressure with an operating range up to

3600 psia and a five year stability.

FBxConnect Tool

Guided workflow simplifies configuration.

FBxConnext provides a guided configuration process that takes you

through a step-by-step process to fully configure your flow computer.

This wizard-driven approach simplifies configuration and ensures that you

only need to enter required data once. Whether it’s you or your newest

technician, you can be confident that it is done the right way.

Interactive Display

Access locally while maintaining safety.

The backlit liquid crystal display provides a local operator direct access

to the device, without removing the front cover. The display provides

four infrared ‘buttons’ that allow you to securely sign in and then

interact with the flow computer in the hazardous environment without

compromising safety. Four LEDs on the display provide you alarms and

status information.

Limited Time and Resources?

Operate more effectively with simplified configuration and support.

Simplified configuration and support of devices make every aspect of your operation more

effective. The new family of flow computers offers a variety of features that reduce the time

required to configure devices, reduce the likelihood of configuration errors, and reduce the

amount of training required to be effective.

Concerned with Operator Safety?

Access data locally without compromising safety.

Maintaining a safe operation is your top priority, and yet technicians are typically required to

compromise hazardous area approvals to access flow computers. No longer. With FBxWifi or the

Local Interactive Display, the FB2000-Series Flow Computers can be accessed for data collection, set

point and configuration changes, easily without opening the enclosure – which makes your people,

equipment, and operation safer than ever.

Enhanced Metrology Platform Minimized measurement risk.

With an industry-leading global suite of metrology calculations –

validated by third parties – you can be confident that no matter where

you are you’ll find what you need. Add in enhanced fallback mode, global

compliance, and role-based security and you can be confident that

measurement risk has been minimized with all your calculations in the

base firmware and your audit risks are contained.

FB2100 and FB2200 Emerson’s Next Generation Flow Computer

Emerson’s new field mount flow computer family provides a new solution to flow metering and

flow computing where challenges with power, safety and measurement accuracy are addressed,

delivering a more convenient approach to remote oil and gas production sites.

The entire family of flow computers provide API, AGA and ISO compliant gas measurement for

single or dual meter runs. Extensive control alarming, reporting, and event log capabilities provide

operators with required data to ensure optimal measurement certainty and production efficiency.

Inconsistent Measurements?

Gain measurement confidence with unmatched accuracy.

Measurement uncertainty is a critical consideration of all oil

and gas producers. With the FB2000-Series Flow Computer

you can further reduce measurement uncertainty. Our

combination of best-in-class sensor stability and temperature

measurement coupled with industry leading fallback

options drive measurement performance to industry leading

levels. Our ease-of-use features make it less likely that

measurements will be misconfigured.

Communications Protocols

The FB2200 supports multiple communications

protocols, including DNP3. Modbus master and slave

(ASCII and RTU), BSAP, and ROC on the three serial

ports. In addition, the Ethernet port supports RTU

Modbus over TCP/IP protocol (master and slave),

DNP3/IP, ROC and BSAP.

FBxNet™

FBxNet is a secure, easily configurable, peer-to-peer

communication network for exchanging data between

Emerson FB3000 RTUs and FB1200 and FB2200 flow

computers over an Ethernet connection. FBxNet

supports subscriber and publisher devices, where

publishers provide data to their subscribers. The

FB3000 RTUs and FB1200 and FB2200 flow computers

can be publishers; only an FB3000 can be a subscriber.

For more information, refer to product data sheet

FBxNet (part D301905X012).

Mounting Options

The FB2200 supports direct mounting to a manifold on

the pipeline, simple wall mounting, or mounting on a

two-inch pipe with the stainless steel pipe mounting kit.