KJ3221X1-BA1 Emerson DeltaV Analog Output Module | New & Original Stock
Manufacturer: GE Fanuc
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Part Number: KJ3221X1 -EA1
Condition：New with Original Package
Product Type: Analog Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Emerson KJ3221X1-BA1 DeltaV Series
The Emerson KJ3221X1-BA1, also cataloged as the KJ3221X1-BA1 AO 8-Channel 4-20 mA HART Series 2 Redundant Card, operates as a dedicated hardware component for 8-channel analog current loop output execution within DeltaV LocalBus instrumentation networks.
Hardware Specifications
| Parameter | Specification |
| Model | KJ3221X1-BA1 (Alternate Part No: 12P2531X022, 12P2531X112, 12P2531X052, 12P2531X062, 12P2531X082, 12P2531X102) |
| Brand | Emerson (DeltaV) |
| Origin | USA |
| Weight | 0.23 kg (0.51 lbs) net / 1.50 kg shipping footprint |
| Dimensions | Standard DeltaV Series 2 card dimensions |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | LocalBus: 12 VDC at 150 mA / Bussed Field Power: 24 VDC at 300 mA |
| Channel Count | 8 analog output channels |
| Signal Range | 4-20 mA |
| Digital Protocol | Integrated HART pass-through communication |
| Field Circuit Rating | 24 VDC at 23 mA |
| Mechanical Keying | Terminal block key position A4 |
| Protection Class | IP20 |
| Relative Humidity | 5% to 95%, non-condensing |
| Mechanical Shock | 10 g, half-sine for 11 ms |
| Mechanical Vibration | 1 mm peak-to-peak from 5 to 16 Hz; 0.5 g from 16 to 150 Hz |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 compliance |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
The module architecture incorporates dual-redundant processing paths to deliver analog command signals across the 4-20 mA HART loop protocol. Digital configuration parameters are modulated onto the 4-20 mA analog signal, enabling automated asset management scanning without altering the primary analog variable. Built-in channel-to-channel isolation circuits prevent physical ground potential variations or single-loop electrical failures from propagating to adjacent output loops. This containment provides continuous noise immunity and signal conversion accuracy when the module handles real-time actuator positioning loops under harsh ambient cross-talk profiles.
Frequently Asked Questions
Q: What are the backplane load limitations and redundancy switching latency behaviors for this card?
A: The KJ3221X1-BA1 draws a fixed 150 mA from the 12 VDC LocalBus rail. When configured as a redundant pair on a compatible carrier assembly, an internal hardware voting matrix continuously monitors module health, enabling a Bumpless transfer latency to the standby card if a primary channel hardware fault or line disconnection occurs.
Q: How does the integrated physical keying mechanism prevent slot alignment errors during online replacement?
A: The module base interfaces with a matching terminal block set to mechanical key position A4. This physical obstruction architecture prevents the uncalibrated insertion of mismatched voltage or digital modules into a slot wired and designated strictly for 4-20 mA HART analog output circuitry.
Field Installation Guidelines
- Verify that the target terminal block assembly is fixed to key position A4 before sliding the card into the slot structure.
- Mount the module carrier assembly within a clean enclosure that limits particulate ingress to satisfy the ISA-S71.04-1985 Class G3 airborne contaminant standard.
- Terminate all 4-20 mA current loops using shielded twisted-pair cables, bonding the overall braided shield to the single instrument earth bus bar.
- Maintain physical isolation between low-voltage 24 VDC field circuit lines and heavy high-voltage AC power distribution cabling inside the cabinet layout.
- Confirm that bussed field power lines provide a regulated 24 VDC up to the 300 mA full module rated capacity.