WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
Key Technical Specifications
- Manufacturer: Emerson
- Catalog Description: Analog Input, 4-20mA, HART, Series 2
- Channels: 8-point, 4–20 mA analog input
- Communication Protocol: HART (pass-through supported for AMS Device Manager per distributor documentation)
- A/D Conversion: 16-bit
- Local Bus Power: 12 Vdc at 150 mA
- Bussed Field Power: 24 Vdc at 300 mA
- Field Circuit Power: 24 Vdc at 30 mA per channel
- Ambient Temperature: –40°C to +70°C (one source lists –40°C to +75°C — confirm against your specific revision)
- Shock: 10g half-sine wave for 11 ms
- Vibration: 1 mm peak-to-peak from 2–13.2 Hz; 0.7g from 13.2–150 Hz
- Airborne Contaminants: ISA-S71.04-1985 Class G3
- Relative Humidity: 5–95% non-condensing
- Terminal Block Key Position: A1
- Hazardous Area Certification (per one distributor): ATEX II 3 G Ex nA [ic] IIC Gc, IECEx FMG 13.0015U — verify against your specific unit’s markings before relying on this for a classified installation
Product Introduction
The Emerson DeltaV KJ3222X1-BA1 is an 8-point, 4–20 mA analog input card built for DeltaV’s Series 2 Traditional I/O architecture, with 16-bit A/D conversion and HART pass-through for intelligent field devices like pressure, temperature, flow, and level transmitters. It’s cataloged under alternate part numbers including 12P2532X072 and VE4003S2, and runs on 12 Vdc local bus power with 24 Vdc bussed field power feeding each channel.
This card gets pulled for maintenance replacement in continuous-process installations — chemical, petrochemical, power generation, water/wastewater — where an existing DeltaV I/O carrier needs a like-for-like swap without touching the loop wiring or HART configuration. Because Emerson’s DeltaV catalog spans several similar-looking analog input variants across generations (Series 1 vs. Series 2, M-Series vs. S-Series carriers), matching the exact suffix and alternate part number to what’s already installed avoids a mismatch on install day.
KJ3222X1-BA1
KJ3222X1-BA1
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| One channel reads 0 mA / open loop | Field wiring fault or transmitter failure | ❌ Low | Measure loop current directly at the field transmitter terminals | Check field wiring and transmitter before replacing the card |
| All channels dead, card LED off | Loss of local bus or bussed field power | ❌ Low | Measure 12 Vdc local bus and 24 Vdc field power at the carrier | Check upstream power supply/carrier before replacing |
| HART communication fails, 4-20mA signal fine | HART filter/termination issue or field device HART fault | ❌ Low | Verify HART communication directly with a handheld HART communicator at the transmitter | Isolate field device vs. card before condemning the AI module |
| Erratic or noisy readings across multiple channels | Ground loop, EMI, or airborne contaminant corrosion (Class G3 environments) | ❌ Low | Check field wiring shielding/grounding and inspect terminal block for corrosion | Rule out installation/environmental causes first |
| Single channel or full card failure confirmed with good field wiring and power | Internal card fault | ✅ High | Substitute with a known-good card if available, or check DeltaV diagnostics for the specific channel/card alarm | Replace if fault isolates to the card itself |
Most “bad AI card” calls trace back to field wiring, loop power, or a failing transmitter rather than the card itself — isolate at the field terminals before condemning the module. If you’re still stuck, contact technical support with the DeltaV diagnostic alarm, affected channel numbers, and field wiring photos.
Note on the mismatched power-supply description found in one listing: if your search turned up a description of this part number as a “power supply module,” that’s inconsistent with every other catalog source and with the terminal block, power, and channel specs above — treat it as a data error, not an alternate configuration.
Frequently Asked Questions (FAQ)
Is the KJ3222X1-BA1 currently available new from Emerson?
Distributor listings show active new stock for this part, unlike some older DeltaV I/O cards that are fully discontinued. Confirm current lead time with your supplier, since DeltaV catalog availability shifts over time.
Can this replace an earlier Series 1 analog input card?
Per distributor documentation, it can function as an upgrade path where your DeltaV system supports Series 2 compatibility — but “supports Series 2” is a system-configuration question, not just a card swap. Verify your DeltaV software/firmware revision supports Series 2 cards before ordering.
Does it support HART pass-through to AMS Device Manager?
Yes, per multiple distributor spec sheets — HART data passes through for device configuration and diagnostics through AMS, assuming your DeltaV system version supports it.
Why do different resellers list different alternate part numbers for the same card?
The 12P2532X0xx suffix variants (062, 072, 092, 112, 122, 142, 152) typically correspond to different production revisions or minor build variations of the same catalog part, not different functional specs. If your existing system calls out a specific suffix, try to match it — but functionally these are the same Series 2 AI card.
Is it hot-swappable?
DeltaV I/O cards of this type are generally designed for hot-swap in a running system when installed in a properly configured carrier — but confirm your specific carrier and redundancy configuration before pulling a live card, since improper hot removal can trip a control loop.
What condition should I expect — new or refurbished?
Ask your specific supplier directly. Listings for this part range from “new with original package” to refurbished/tested stock — get the actual condition and any test documentation in writing before you buy, especially since this feeds directly into your process control loops.
Is this part rated for hazardous locations?
One distributor lists ATEX/IECEx certification for this card — but hazardous-area certification is exactly the kind of detail you verify against your specific unit’s physical markings and your site’s classification requirements, not from a single reseller’s spec sheet.
