Product Details
The Emerson KJ3222X1-BA3, also cataloged as the KJ3222X1-BA3 Analog Input Module, operates as a dedicated hardware component for multi-channel field current sampling and HART signal pass-through within DeltaV I/O Subsystem platforms. It processes up to 8 continuous analog current loops while interfacing directly across the local backplane bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ3222X1-BA3 |
| Brand | Emerson |
| Base Model | KJ3222X1-BA3 |
| Origin | USA |
| Weight | 0.5 kg |
| Dimensions | 25.4 cm x 2.5 cm x 20.3 cm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 12 VDC at 150 mA (Local Bus), 24 VDC at 300 mA (Bussed Field) |
| Channels | 8 analog input channels |
| Signal Type | 4-20 mA |
| Field Circuit Power | 24 VDC at 30 mA per channel |
| HART Communication | Supported |
| Key Position | Terminal Block Position A1 |
| Relative Humidity | 5% to 95% non-condensing |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Mechanical Shock | 10 g half-sine wave for 11 ms |
| Vibration Limits | 1 mm peak-to-peak (2 to 13.2 Hz), 0.7 g (13.2 to 150 Hz) |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
The KJ3222X1-BA3 module incorporates integrated filtering and galvanic isolation topologies across its 8 input channels to suppress common-mode electrical noise. By isolating field transmitter loops from internal system electronics, the hardware maintains signal integrity for standard 4-20 mA HART loop protocol transactions. Superimposed digital FSK signals are extracted continuously for asset health diagnostics without interrupting primary analog variable acquisition.
Frequently Asked Questions
Q: What are the distinct voltage rails required to power the KJ3222X1-BA3 module?
A: The module requires 12 VDC at 150 mA from the local backplane bus power rail and 24 VDC at 300 mA from the bussed field power rail, distributing up to 24 VDC at 30 mA per active field channel.
Q: How does mechanical keying prevent incorrect terminal block installation?
A: The hardware enforces key position A1 on its mating terminal carrier, preventing mechanical insertion into slots configured for incompatible I/O types.
Q: What environmental limits govern operations in corrosive atmospheres?
A: The module is rated for ISA-S71.04-1985 Class G3 severe airborne contaminants and functions in operating temperatures ranging from -40 to +70 deg C.
Field Installation Guidelines
- Confirm that the terminal block mechanical key is aligned to position A1 before installing the module onto the I/O carrier.
- De-energize local bus power and 24 VDC field supplies prior to mounting or swapping hardware units.
- Align the module housing with the carrier slots and press firmly until the mechanical latches lock into position.
- Wire 4-20 mA field loop conductors to the terminal block, maintaining correct polarity for powered loop transmitters.
- Terminate all field wiring shields at the designated enclosure earth ground bar using a single-point grounding strategy.
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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