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Fisher FIELDVUE DVC2000 User Manual

Fisher FIELDVUE DVC2000
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Page #21 background image
Instruction Manual
D103176X012
Detailed Setup and Calibration
June 2017
21
DTvl Alrt DB—Travel Alert Deadband is the travel, in percent (%) of ranged travel, required to clear a travel alert, once it
has been set. The deadband applies to both Travel Alert Hi/Lo and Travel Alert Hi Hi/Lo Lo. See figure 2‐3.
Note
The Travel Alert Deadband applies to the Travel Deviation as well as Travel Alert Hi/Lo and Travel Alert Hi Hi/Lo Lo.
Setting Travel Deviation Alert
Follow the prompts on the Field Communicator to set the following travel deviation alerts:
DTvl Dev Alrt Enab—Yes or No. When enabled, checks the difference between the travel target and the actual travel. If
the difference exceeds the Travel Deviation Alert Point for more than the Travel Deviation Time, the Travel
Deviation Alert is set. It remains set until the difference between the travel target and the actual travel is less than
the Travel Deviation Alert Point minus the Travel Alert Deadband.
DTvl Dev Alrt Pt—Travel Deviation Alert Point is the alert point for the difference, expressed in percent (%), between
the travel target and the actual travel. When the difference exceeds the alert point for more than the Travel
Deviation Time, the Travel Deviation Alert is set.
DTvl Dev Time—Travel Deviation Time is the time, in seconds, that the travel deviation must exceed the Travel
Deviation Alert Point before the alert is set.
Setting Travel Accumulation Alert
Follow the prompts on the Field Communicator to set the following travel accumulation alerts:
DTvl Acum Alrt Enab—Yes or No. Travel Accumulator Alert Enable activates checking of the difference between the
Travel Accumulator value and the Travel Accumulator Alert Point. The Travel Accumulator Alert is set when the
Travel Accumulator value exceeds the Travel Accumulator Alert Point. It is cleared after you reset the Travel
Accumulator to a value less than the alert point.
DTvl Accum Alrt Pt—Travel Accumulator Alert Point is the value of the Travel Accumulator, in percent (%) of ranged
travel, which, when exceeded, sets the Travel Accumulator Alert.
DTvl Accum DB—Travel Accumulator Deadband is the area around the travel reference point, in percent (%) of ranged
travel, that was established at the last increment of the accumulator. This area must be exceeded before a change
in travel can be accumulated. See figure 2‐4.
DTvl Accum—Travel Accumulator records the total change in travel, in percent (%) of ranged travel, since the
accumulator was last cleared. The value of the Travel Accumulator increments when the magnitude of the change
exceeds the Travel Accumulator Dead- band. See figure 2‐4. You can reset the Travel Accumulator by configuring it
to zero.

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Fisher FIELDVUE DVC2000 Specifications

General IconGeneral
ManufacturerFisher
CategoryController
Device TypeDigital Valve Controller
Communication ProtocolHART
Input Signal4-20 mA
Enclosure RatingNEMA 4X, IP66
Operating Temperature-40 to 85°C (-40 to 185°F)
MaterialAluminum
Power SupplyLoop Powered
DiagnosticsAdvanced diagnostics
Output Signal4-20 mA
CertificationsATEX, IECEx, CSA, FM
MountingIntegral mounting to actuator

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