Overview
The Emerson KJ3222X1-BK1 12P4705X032 SE4003S2B1, also cataloged as the KJ3222X1-BK1 AI 8 CH 4-20 mA HART Card, operates as a dedicated hardware component for analog signal acquisition within the DeltaV S-Series I/O system.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ3222X1-BK1 12P4705X032 SE4003S2B1 |
| Brand | Emerson |
| Product Type | Analog Input Modules |
| Origin | USA |
| Weight | 0.25 kg |
| Dimensions | 4.1 x 13 x 13 cm |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Local Bus Power: 12 VDC at 150 mA; Bussed Field Power: 24 VDC at 300 mA |
| Channels | 8 analog input channels |
| Signal Type | 4-20 mA DC with HART communication |
| Field Circuit | 24 VDC at 30 mA per channel |
| Input Impedance | <= 250 ohm typical |
| Accuracy | +/- 0.05% of span at 25 deg C |
| Overrange Capability | -1 mA to +25 mA |
| Humidity | 5 to 95% RH non-condensing |
| Terminal Block | Removable terminal block, accepts 12-22 AWG wire |
| Terminal Block Key Position | A1 |
| Torque | 0.5-0.6 N m |
| Hazardous Area Certification | II 3G Ex nA [nL] IIC Gc; II 3G Ex ec [ic] IIC Gc; CL. I Div. 2 GP. A,B,C,D |
4-20 mA HART Process Signal Integration
The KJ3222X1-BK1 provides eight isolated analog input channels for DeltaV process measurement applications. Each channel accepts standard 4-20 mA transmitter signals and supports HART loop protocol communication through the same field wiring.
Furthermore, the integrated HART interface allows the control system to read transmitter diagnostics, configuration parameters, and secondary variables without additional communication modules. The card supports common smart field devices used for pressure, temperature, flow, level, and analytical measurements.
The module implements channel signal processing with an input impedance of typically <= 250 ohm and maintains an accuracy of +/- 0.05% of span at 25 deg C. In addition, the field circuit supports 24 VDC operation with a maximum current of 30 mA per channel.
Frequently Asked Questions
Q: Does the KJ3222X1-BK1 support HART communication on all input channels?
A: Yes. The module provides HART communication capability on all eight 4-20 mA input channels through the standard analog field wiring.
Q: Can the KJ3222X1-BK1 be removed while field power is active?
A: No. Field power supplied through the terminal block or bussed field power connection must be removed before removing or inserting the module.
Q: Does this module require user calibration or internal adjustment?
A: No. The unit contains no user-serviceable parts and does not require calibration during normal operation.
Field Installation Guidelines
Install the KJ3222X1-BK1 according to DeltaV S-Series hardware installation procedures and hazardous area requirements.
Verify that the terminal block key position matches the installed I/O card before connection. The rotary keying system prevents incorrect terminal block and module combinations after installation.
Before installation or removal, disconnect field power from the terminal block and carrier connections. Confirm that non-sparking field circuits are de-energized before handling the module.
Use appropriate industrial wiring practices for 4-20 mA HART loops. Maintain proper cable routing separation from high-voltage power conductors and connect cable shields according to the site grounding standard to reduce electrical interference.
The module supports removable terminal connections with 12-22 AWG field wiring. Check terminal torque during installation to maintain proper electrical contact.
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