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KJ3221X1-BA1

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Emerson KJ3221X1-BA1 12P2531X062 VE4035S2B1 is an eight-channel 4-20 mA HART analog output card for DeltaV M-series Traditional I/O. It drives control-loop signals while retaining digital communication with compatible field devices.
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Technical specifications for KJ3221X1-BA1

  • Manufacturer:
    Emerson
  • Part Number:
    KJ3221X1-BA1
  • Product Family:
    DeltaV
  • Product Type:
    8-Channel 4-20 mA HART Analog Output Card
  • Stock:
    1
  • Number of Channels:
    8
  • Signal Type:
    4–20 mA, HART
  • Full Signal Range:
    1–23 mA
  • Isolation:
    Each channel optically isolated from the system; factory tested to 1500 V DC
  • LocalBus Power:
    12 VDC at 150 mA
  • Bussed Field Power:
    24 VDC at 300 mA
  • Accuracy:
    0.25% of span over temperature range
  • Resolution:
    12-bit
  • Output Compliance:
    20 mA at 21.6 V DC supply into 700 Ω load
  • Field Circuit Power:
    24 VDC at 23 mA per channel
  • Weight:
    0.3968 lbs (0.18 kg)
  • Estimated shipping dimensions:
    4.1 x 12.5 x 10.5 cm
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Performance Configuration Installation

Features:

  • Eight analog outputs regulate 4-20 mA control-loop commands.
  • HART communication accompanies the analog signal for compatible final devices.
  • The card operates through the approved M-series carrier and keyed termination.
KJ3221X1-BA1, 12P2531X062 and VE4035S2B1 identify the requested DeltaV analog-output assembly.

The output path converts controller demand into field current while retaining access to supported HART diagnostics.

Capture channel fail states, loop polarity, terminal keying and partner details before exchanging the hardware.

Apter Power confirms condition and delivery for the complete KJ3221X1-BA1 identity.
Verified resources for Emerson KJ3221X1-BA1 12P2531X062 VE4035S2B1:

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Commanding valve positioners and current-driven actuators from DeltaV logic.
  • Providing eight coordinated setpoint signals for packaged process equipment.
  • Retaining HART maintenance access on control outputs in operating plants.
  • The nominal output span is 4-20 mA for each configured loop.
  • Output conversion supports the documented resolution for stable controller commands.
  • Channel behavior is governed by the downloaded range and fail-state settings.
  • Each loop is assigned and scaled in the DeltaV engineering database.
  • HART device definitions must correspond to the connected final-control device.
  • Configured output actions are restored only after the validated database download.
  • Carrier location and terminal keying must agree with the existing cabinet design.
  • Field polarity is checked before reconnecting positioners or converters.
  • Commissioning includes a controlled output test with affected equipment in a safe state.
Description
KJ3221X1-BA1 forms the analog-output function identified by 12P2531X062 and VE4035S2B1. The eight-channel card converts DeltaV output commands into regulated 4-20 mA loop signals and maintains HART communication for supported positioners, transmitters and final-control accessories.

Installed in an M-series I/O subsystem, it links the controller database to field loops through the approved carrier and keyed terminal hardware. Channel diagnostics, loop-current behavior and digital device information remain available to engineering tools without changing the hardwired signal path.

Before exchange, export the assigned channel configuration and compare every label identifier. Confirm terminal keying, field-power source, loop polarity, HART device revisions and the required output fail-state so commissioning does not disturb connected equipment.
Alternative Names
KJ3221X1-BA1 KJ3221X1BA1 KJ3221X1 BA1 12P2531X062 VE4035S2B1 Emerson KJ3221X1-BA1 DeltaV KJ3221X1-BA1 12P2531X062 Emerson VE4035S2B1 HART analog output card
Technical notes
KJ3221X1-BA1 replacement must preserve loop polarity, programmed fail-state, terminal keying and the downloaded channel database. Test connected actuators under an approved safe-state procedure before automatic service.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What control signal is produced by Emerson KJ3221X1-BA1 for each assigned output channel?
The card delivers the configured 4-20 mA analog command and supports HART communication with compatible loop devices.
How should fail-state behavior be handled during an Emerson KJ3221X1-BA1 card change?
Document each output action, place affected equipment in a controlled state, and restore the validated channel database before releasing automatic control.
Which hardware interfaces define the cabinet fit of Emerson KJ3221X1-BA1?
The M-series carrier, keyed terminal block, field-power arrangement and connector condition must all match the installed assembly.
Can Emerson KJ3221X1-BA1 be selected only from the VE4035S2B1 identifier?
No. Compare VE4035S2B1, 12P2531X062 and KJ3221X1-BA1 together because a partial identifier does not confirm the complete ordered configuration.
What evidence should be requested for an Emerson KJ3221X1-BA1 spare offered from surplus stock?
Ask for readable nameplate images, connector photographs, test scope, storage condition and confirmation that all eight channels belong to the quoted unit.
How is documentation linked to an Emerson KJ3221X1-BA1 purchasing inquiry?
Open the exact-model datasheet in Manuals and include the installed terminal type, HART device mix, quantity and delivery location with the request.