Emerson Fisher FIELDVUE DVC2000 Configuration guide

www.Fisher.com

Single Point Calibration

Fisher™FIELDVUE™DVC2000 Digital Valve

Controller

The Single Point Calibration procedure allows you to replace an existing positioner with a DVC2000, on sliding-stem

applications, without performing a travel calibration. This procedure should only be used in emergency situations

where a positioner must be completely replaced and is part of a valve assembly that does not have a process bypass or

the process cannot be shut down. For other procedures, refer to the DVC2000 Quick Start Guide and the DVC2000

Instruction Manual.

Related Documents

D Fisher FIELDVUE DVC2000 Digital Valve Controller Quick Start Guide (D103203X012)

D Fisher FIELDVUE DVC2000 Digital Valve Controller Instruction Manual (D103176X012)

These documents are available from your Emerson sales office or at Fisher.com.

WARNING

Personal injury or property damage, caused by unexpected valve movement and an uncontrolled process, could result if

this procedure is attempted when the valve is not locked at its present position. If you cannot safely lock the valve in

position until this procedure is complete, do not proceed with this procedure.

Notes

This procedure should only be used in emergency situations where a positioner must be completely replaced and is part of a valve

assembly that does not have a process bypass or the process cannot be shut down. Do not proceed if the valve has a bypass or the

process can be shut down.

The valve will need to be locked at its present position. This can be accomplished by using a handwheel or other mechanism. If the

valve assembly or valve application will not allow you to safely lock the valve in position until this procedure is complete, do not

proceed with this procedure.

This procedure can be used to replace a positioner with a DVC2000. The DVC2000 used to replace the existing positioner must

have firmware 3, 4, or 5 and HC, AD, or PD diagnostic tiering. Do not proceed with this procedure if the digital valve controller

does not meet the tiering and firmware requirements mentioned above.

This procedure can only be performed on sliding-stem valve assemblies and only supports feedback connections using the linear

sliding-stem arrays. This procedure cannot be performed with a long stroke roller array. Do not proceed if you have something

other than a sliding-stem valve assembly with a linear sliding-stem array.

This procedure requires the use of ValveLink™software 13.5 or newer.

DVC2000 Digital Valve Controller

January 2020

Instruction Manual Supplement

D104492X012

Instruction Manual Supplement

D104492X012

DVC2000 Digital Valve Controller

January 2020

Installation

WARNING

Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before proceeding

with any procedures:

D Always wear protective clothing, gloves, and eyewear to prevent personal injury or property damage.

D Do not remove or uncouple the actuator from the valve while the actuator is still pressurized.

D The valve will need to be locked at its present position. If you cannot safely lock the valve in position until this procedure

is complete, do not proceed with this procedure.

D After the valve has been safely locked in position, disconnect any operating lines providing air pressure, electric power,

or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve.

D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.

D Check with your process or safety engineer for any additional measures that must be taken to protect against process

media.

1. Lock Valve in Place

1.1 Ensure the mounting kit for the replacement DVC2000 is compatible with the valve assembly. Do not proceed

with this procedure until you have obtained a mounting kit compatible with the replacement DVC2000 and the

control valve assembly.

1.2 Block the valve into position either with a handwheel or other mechanism. If you cannot safely lock the valve in

position until this procedure is complete, do not proceed with this procedure.

1.3 Disconnect the operating lines that provide air pressure to the actuator. Bleed any extra air that may be built up in

the instrument. Please note which air connections go to the actuator and which come from supply for future

reassembly.

1.4 Determine and record the following parameters:

D Feedback Connection: The magnetic array type that will be used with the replacement digital valve controller.

Note

This procedure only supports feedback connections using linear sliding-stem arrays. Do not proceed if you are not using a linear

sliding-stem array.

D Travel Sensor Motion: States whether increasing drive signal causes the magnetic assembly to move toward the

top of the instrument or away from the top of the instrument.

D Air (Closes/Opens): States whether adding air opens or closes the valve.

D Actual Travel: The measured distance from the closed position to the fully open position of the valve.

2. Configure Replacement Digital Valve Controller Prior to Installation

2.1 Open ValveLink software and connect to the replacement digital valve controller.

Instruction Manual Supplement

D104492X012

DVC2000 Digital Valve Controller

January 2020

2.2 Open the tag for your replacement digital valve controller and run Setup Wizard.

2.2a Initiate the Setup Wizard from either the Instrument Setup menu or Setup Wizard Icon

on the toolbar.

2.2b Set the desired Pressure Units and the Max Supply Pressure for the application.

2.2c Select the required Actuator Information including: Actuator Make, Actuator Model, Actuator Size, and

designate if a Volume Booster or Quick Release Valve is present.

2.2d If prompted, fill out any additional screens (eg: Zero Power Condition, Actuator Style, and Tuning

Information).

2.2e Select Yes when prompted to Use Factory Default Settings.

Note

It is not necessary to run an Auto Travel Calibration since the digital valve controller will be calibrated with the Single Point

Calibration feature in future steps and is not currently mounted to a valve assembly.

2.2fWhen prompted to run an Auto Travel Calibration select No.

2.3 Place the instrument In Service and close the tag. Then disconnect the digital valve controller.

3. Manually Replace Positioner

WARNING

Refer to the Installation Warning on page 2.

3.1 Disconnect any operating lines that provide air pressure, electric power, or a control signal to the actuator. Be sure

the actuator cannot suddenly open or close the valve. Remember to note where each line goes for reassembly.

3.2 Confirm the valve assembly is safely locked in position. Do not proceed if the valve assembly has not been safely

locked in position.

3.3 Carefully remove the existing positioner without disturbing the mechanism locking the valve in position.

3.4 Mount the replacement digital valve controller by following the mounting instructions for sliding-stem valve

assemblies in the DVC2000 Quick Start Guide (D103566X012).

CAUTION

Valve movement may occur if air is supplied to the digital valve controller during calibration. The Single Point Calibration

process cannot be started if air is supplied to the instrument.

3.5 Reattach pneumatic and electrical operating lines to the replacement digital valve controller but Do Not Turn On

Air Supply.

D Measure and record the valve assembly’s Observed Travel (%). Observed Travel is the current position of the

valve as a percentage of the actual travel.

Instruction Manual Supplement

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DVC2000 Digital Valve Controller

January 2020

4. Run Single Point Calibration

4.1 In ValveLink software, connect to the replacement digital valve controller. Open the tag for your replacement

digital valve controller.

4.2 Initiate Single Point from the Calibration menu. Set the device Out of Service if prompted.

4.3 Read the Start Screen and confirm you have completed the required initial steps for Single Point Calibration. Click

Next if you have completed the required steps listed.

4.4 Review the travel configuration information pre-populated by Setup Wizard and/or enter the correct values in the

blanks on the Configuration Screen. Click Next when all the values are entered correctly.

4.5 Review the tuning information pre-populated by Setup Wizard and/or enter the correct values in the blanks on the

Tuning Screen.Click Next when all the values are entered correctly.

4.6 Read the Warning Screen (figure 1) that describes how to adjust the travel sensor. Click OK when finished reading

the screen.

Figure 1. Warning Screen

4.7 On the Travel Screen, enter the Actual Travel (in) and Observed Travel (%). Then click Next.

4.7a Read the alignment recommendations in the bottom left hand corner of the screen. Follow the alignment

recommendations, to move the feedback assembly up or down, until the alignment is indicated with the

good status symbol (Figure 2). Then click Next to put your digital valve controller back In Service.

Figure 2. Good Status Symbol

4.8 Review the travel setpoint and measured travel on the Control Signal Screen. Adjust the travel setpoint to match

travel. This will minimize valve movement when air is resupplied. Once the travel setpoint matches travel, click

Next.

4.9 Reintroduce instrument air pressure to the digital valve controller. The air pressure supplied will be shown on the

dial graphic on the Air Screen. Once you’ve confirmed instrument air has been supplied, click Next.

Instruction Manual Supplement

D104492X012

DVC2000 Digital Valve Controller

January 2020

WARNING

Refer to the Installation Warning on page 2.

4.10 On the resulting Finish Screen adjust the Travel Setpoint to remove force on the valve locking mechanism. Then

carefully remove the valve locking mechanism.

Note

The lack of a full travel calibration can impact the accuracy of the position feedback. While this does not impact the instrument’s

ability to control the process, it can influence the results of diagnostic tests.

This calibration is approximate and accuracy is limited. To ensure optimal accuracy and operation, perform an auto travel

calibration on the digital valve controller as soon as conditions allow.

Emerson Automation Solutions

Marshalltown, Iowa 50158 USA

Sorocaba, 18087 Brazil

Cernay, 68700 France

Dubai, United Arab Emirates

Singapore 128461 Singapore

www.Fisher.com

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not

to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are

governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such

products at any time without notice.

Fisher, FIELDVUE, and ValveLink are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co.

Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property

of their respective owners.

Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance

of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

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