Emerson KJ3225X1-BA1 DeltaV DCS 32-Channel Analog Input Module
Manufacturer: Emerson
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Part Number: KJ3225X1-BA1 12P4174X032
Condition：New with Original Package
Product Type: Analog Input Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Emerson KJ3225X1-BA1 DeltaV 32-Channel Analog Input Module
The Emerson KJ3225X1-BA1, also cataloged as the KJ3225X1 Analog Input Module, operates as a dedicated hardware component for high-density analog signal acquisition and digital conversion within DeltaV DCS networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ3225X1-BA1 |
| Brand | Emerson |
| Origin | USA |
| Weight | 0.3 kg |
| Dimensions | 51 x 102 x 102 mm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 12 VDC at 150 mA (LocalBus), 12 VDC at 300 mA (Bussed Field Power) |
| System Compatibility | Emerson DeltaV DCS |
| Number of Channels | 32 isolated analog inputs |
| Signal Range | 4-20 mA current input |
| Resolution | 16-bit analog-to-digital conversion |
| HART Support | Pass-through, point-to-point only |
| Field Circuit Rating | 24 VDC at 32 mA |
| Protection Class | IP20 |
| Airborne Contaminants | ISA-S71.04 Class G3 |
| Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Resistance | 1 mm peak-to-peak (2-13.2 Hz), 0.7 g (13.2-150 Hz) |
| Certifications | CE, UL, ATEX, IECEx (Zone 2 / Class I Div. 2) |
Process Control and Signal Isolation Features
The module handles standard 4-20 mA HART loop protocol signals through point-to-point pass-through pathways, enabling continuous HART diagnostic data transmission to host software. Channel-to-channel isolation networks prevent field loop noise and potential difference ground currents from interfering with system backplane electronics. Integrated cold junction compensation (CJC) capabilities and high-precision analog-to-digital converters maintain signal accuracy across temperature shifts in hazardous area enclosures.
Frequently Asked Questions
Q: How does the KJ3225X1-BA1 handle channel isolation during field ground fault conditions?
A: Internal galvanic isolation circuits decouple each 4-20 mA channel individually, preventing external ground loop voltage spikes from disturbing adjacent input channels or backplane logic components.
Q: What are the primary backplane current draws for this high-density module?
A: The module draws 12 VDC at 150 mA from the system LocalBus rail for internal processing, while drawing 12 VDC at 300 mA from the bussed field power rail and supplying 24 VDC at 32 mA per field circuit.
Field Installation Guidelines
- Seat the module firmly onto the designated DeltaV carrier slot until the locking tab engages fully with the backplane connector.
- Ground all 4-20 mA field loop cable shields at the dedicated enclosure earth bus bar to prevent electromagnetic interference.
- Route field input wiring separately from AC power lines inside cabinet channels to maintain signal isolation integrity.
- Maintain ambient cabinet operating temperatures within -40 to +70 deg C and verify Class G3 environmental protection compliance.