Product Details
Product Overview
The Emerson KJ3221X1-BA1 operates as a high-performance, 8-channel Analog Output (AO) card within the DeltaV™ Series 2 architecture. This module specializes in delivering precise 4-20 mA signals to field actuators and valves while supporting full HART digital communication for advanced asset diagnostics. Its redundant design ensures continuous process availability, making it a critical component for high-stakes industrial loops. We supply this unit as 100% Brand New and Original, ready for immediate integration into your safety or control network.
Technical Specifications
The KJ3221X1-BA1 provides robust electrical isolation and power efficiency for dense I/O configurations.
| Feature | Specification Details |
| Manufacturer | DeltaV (Emerson) |
| Model Number | KJ3221X1-BA1 |
| Card Type | 8-Channel, 4-20 mA AO with HART |
| Series | Series 2 Redundant |
| LocalBus Power | 12 VDC at 150 mA |
| Bussed Field Power | 24 VDC at 300 mA |
| Field Circuit Rating | 24 VDC at 23 mA |
| Ambient Temperature | -40°C to 70°C |
| Environmental Protection | ISA-S71.04 Class G3 / IP 20 |
| Terminal Block Key | Position A4 |
Engineering Advantages
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High-Availability Redundancy: The Series 2 redundant architecture allows two KJ3221X1-BA1 cards to work in parallel. If one card fails, the standby card takes control of the 4-20 mA loop instantaneously, preventing process upsets and unplanned downtime.
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Integrated HART Intelligence: This card extracts digital diagnostic data from HART-enabled field devices without requiring external multiplexers. This allows the DeltaV system to monitor valve health and positioner status in real-time, facilitating predictive maintenance.
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Aggressive Atmosphere Protection: A factory-applied coating meets the ISA-S71.04 Class G3 standard. This chemical barrier prevents corrosion from sulfur, chlorine, and other airborne contaminants found in refineries and chemical processing plants.
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Rugged Mechanical Design: The module withstands 10g of shock and significant vibration (up to 0.5g at 150Hz). This structural integrity ensures stable signal output in cabinets mounted near high-vibration machinery like pumps and compressors.
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Thermal Endurance: The broad operating range of -40°C to 70°C permits installation in unconditioned remote instrument enclosures (RIEs) across extreme geographic locations.
FAQs
Q: Is this KJ3221X1-BA1 unit a "New-Surplus" or used item?
A: No. We provide only 100% Brand New and Original Emerson hardware. Each card ships in its original factory packaging with intact serial numbers, ensuring it meets all current safety and performance standards.
Q: Does the card support redundant operations out of the box?
A: Yes. The KJ3221X1-BA1 is specifically designed for the DeltaV redundant carrier. When you install two identical cards in a redundant slot pair, the DeltaV software automatically recognizes the pair and manages the bumpless switchover logic.
Q: What is the significance of the "Terminal Block Key Position A4"?
A: The A4 keying ensures you only seat the KJ3221X1-BA1 onto a compatible terminal block. This mechanical lockout prevents accidental insertion into the wrong slot type, protecting the card and the field wiring from electrical damage due to voltage mismatches.
Q: How does the G3 rating impact the card's service life?
A: In environments with corrosive gases ($H_2S$ or $SO_2$), standard electronics often fail due to "whiskering" or contact oxidation. The G3 rating on the KJ3221X1-BA1 significantly extends the MTBF (Mean Time Between Failures) by isolating sensitive circuits from these harmful elements.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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