Instruction Manual

DVC6000 SIS
September 2013
6-4
indicates the status of the Operational items listed
below. The status of more than one operational item
may be indicated.
Instrument Time
Instrument Time Invalid
Calibration and Diagnostics
Calibration in Progress
Autocal in Progress
Diagnostic in Progress
Diagnostic Data Available
Operational
Pressure Control Active
Multi-Drop
Integrator
Integrator Sat Hi
Integrator Sat Lo
Device Record (2-3)
From the Online menu, select Service Tools and
Device Record. Follow the prompts on the Field
Communicator display to view the following Device
Record parameters:
 Maximum Recorded Temperature—Shows the
maximum temperature the instrument has experienced
since installation.
 Minimum Recorded Temperature—Shows the
minimum temperature the instrument has experienced
since installation.
 View Number of Days Powered Up—Indicates
in hours or days the total elapsed time the instrument
has been powered up.
 Number of Power Ups—Indicates how many
times the instrument has cycled power.
Stroking the Digital Valve Controller
Output (2-4)
From the Online menu, select Service Tools and
Stroke Valve. Follow the prompts on the Field
Communicator display to select from the following:
 Done—Select this if you are done. All ramping is
stopped when DONE is selected.
 Ramp Open—ramps the travel toward open at
the rate of 1.0% per second of the ranged travel.
 Ramp Closed—ramps the travel toward closed at
the rate of 1.0% per second of the ranged travel.
 Ramp to Target—ramps the travel to the
specified target at the rate of 1.0% per second of the
ranged travel.
 Step to Target—steps the travel to the specified
target.
Partial Stroke Test (2-5)
WARNING
During the partial stroke test the valve
will move. To avoid personal injury
and property damage caused by the
release of pressure or process fluid,
when used in an application where
the valve is normally closed, provide
some temporary means of control for
the process.
The Partial Stroke Test allows the DVC6000 SIS
digital valve controller to perform a Valve Signature
type of test while the instrument is in service and
operational. In SIS applications, it is important to be
able to exercise and test the valve to verify that it will
operate when commanded. This feature allows the
user to partially stroke the valve while continually
monitoring the input signal. If a demand arises, the
test is aborted and the valve moves to its commanded
position. The partial stroke valve travel is configurable
between 1 and 30% maximum travel, in 0.1%
increments. Data from the last partial stroke test is
stored in the instrument memory for retrieval by
ValveLink software.
The Partial Stroke Test allows you to perform a partial,
10%, stroke test (standard) or a custom stroke test.
With the custom stroke test, the stroke may be
extended up to 30%. Be sure to check plant guidelines
before performing a custom stroke test. The purpose
of this test is to ensure that the valve assembly moves
upon demand.
A partial stroke test can be initiated when the valve is
operating at either 4 mA or 20 mA (point-to-point
mode). In applications where a spurious trip is to be
minimized, 4 mA is the normal operating position.
When enabled, a partial stroke test may be initiated by
the device (as a scheduled, auto partial stroke test), a
remote push button located in the field or at the valve,
the optional LCP100 local control panel, the Field
Communicator, or ValveLink software.
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