Fisher IM Supplement: Single Point Calibration - DVC6200f Digital Valve Controller Manuals & Guides

Instruction Manual Supplement

D104491X012

Single Point Calibration

DVC6200f Digital Valve Controller

January 2020

Fisher

™

FIELDVUE™ DVC6200f Digital Valve

Controller

The Single Point Calibration procedure allows you to replace an existing positioner with a DVC6200f, 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 DVC6200 Quick Start Guide and the DVC6200f
Instruction Manual.

Related Documents

D Fisher FIELDVUE DVC6200 Series Digital Valve Controllers Quick Start Guide (D103566X012)

D Fisher FIELDVUE DVC6200f Digital Valve Controller Instruction Manual (D103412X012

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 DVC6200f. The DVC6200f used to replace the existing positioner must
have firmware 2, 3, or 3.1 and FD, 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.

The Single Point Calibration procedure cannot be completed with Pressure Control. Do not proceed with this procedure if
Travel/Pressure Select is Pressure.

This procedure is not recommended for a valve assembly with a double-acting actuator that uses a DVC6200f with a Relay A that
was previously configured for a valve assembly with a single-acting actuator.

This procedure requires the use of ValveLink

™

software 13.5 or newer.

www.Fisher.com

DVC6200f Digital Valve Controller

January 2020

Instruction Manual Supplement

D104491X012

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 valve 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 DVC6200f is compatible with the valve assembly. Do not proceed
with this procedure until you have obtained a mounting kit compatible with the replacement DVC6200f 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

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 magnet assembly to move toward the

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

D Air (Closes/Opens)

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

: 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.

2