Overview
The Emerson KJ3208X1-BA2, also cataloged as the KJ3208X1-BA2 DO 8-Channel 24 VDC Isolated Digital Output Module, provides direct electrical output execution for discrete field devices within the DeltaV M-Series control system.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ3208X1-BA2 |
| Brand | Emerson |
| Origin | United States |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Local Bus Power: 12 VDC at 150 mA |
| Module Type | 8-Channel 24 VDC Isolated Digital Output Module |
| Field Circuit Power | 60 VDC at 1 A per channel |
| Hazardous Area Certification | II 3G Ex ec IIC Gc; FM19ATEX0173U; IECEx FMG 19.0019U; FM21UKEX0017U |
| North American Hazardous Rating | CL. I Div. 2 GP. A, B, C, D; CL. I Zone 2 AEx/Ex ec IIC Gc |
| Terminal Block Key Position | B5 |
| Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Resistance | 1 mm peak to peak from 2 to 13.2 Hz; 0.7 g from 13.2 to 150 Hz |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Relative Humidity | 5 to 95% non-condensing |
DeltaV Discrete Output Signal Isolation and Field Interface
The KJ3208X1-BA2 provides eight isolated digital output channels for controlling external field devices through 24 VDC discrete signals. Each channel supports field circuit operation up to 60 VDC and 1 A per channel.
Furthermore, the module maintains electrical separation between output channels and the control system interface. This design reduces signal interaction during discrete switching operations and supports installation in DeltaV M-Series I/O environments.
The module uses a rotary keying mechanism to match compatible terminal blocks with the installed I/O card. Therefore, the terminal block configuration prevents incorrect module pairing after installation.
Frequently Asked Questions
Q: Can the KJ3208X1-BA2 be removed while system power remains energized?
A: No. Field power and system power must be removed before removing or inserting this module. The device does not support energized removal or insertion.
Q: Does the KJ3208X1-BA2 require field calibration?
A: No. This digital output module does not require calibration because it performs discrete electrical switching rather than analog signal measurement.
Q: Does the module contain user-serviceable components?
A: No. The unit contains no user-serviceable parts and should not be disassembled during maintenance activities.
Field Installation Guidelines
Install the KJ3208X1-BA2 according to DeltaV M-Series hardware installation procedures and hazardous area requirements.
Before installation or removal, disconnect all field power supplied through the terminal block or carrier field power bus. Additionally, verify that non-sparking field circuits are de-energized before connecting or disconnecting the module.
Use the correct keyed terminal block position during assembly. The rotary keying system must match the assigned I/O card configuration before system operation.
Maintain proper separation between field wiring and power distribution conductors. Follow site grounding practices for control cabinets, cable shields, and protective earth connections to reduce electrical interference.
Operate the module only within the specified environmental limits, including temperature, humidity, vibration, and airborne contaminant conditions.
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