Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KJ3002X1-BA1 |
| Brand | Emerson |
| Series | DeltaV M-Series |
| Module Type | 2-Wire Analog Input HART Module |
| Channel Count | 8 Channels |
| Input Signal | 4-20 mA |
| Communication Protocol | HART |
| LocalBus Power Rating | 12 VDC at 150 mA |
| Bussed Field Power Rating | 24 VDC at 300 mA |
| Field Circuit Rating | 24 VDC at 32 mA |
| Operating Temp | 0 deg C to 60 deg C |
| Shock Resistance | 10 g, 1/2 Sinewave, 11 ms |
| Vibration Resistance | 1 mm Peak-to-Peak, 5 to 16 Hz; 0.5 g, 16 to 150 Hz |
| Terminal Block Key Position | A1 |
| Power Consumption | LocalBus: 12 VDC at 150 mA |
4-20 mA HART Loop Interface
The KJ3002X1-BA1 accepts signals from 2-wire transmitters using the 4-20 mA HART loop protocol. Each channel provides an analog current input path for process-variable acquisition while supporting HART digital communication over the same field loop.
The specified field circuit rating is 24 VDC at 32 mA. Therefore, field wiring should maintain the required loop polarity and electrical continuity. Channel wiring should also remain separated from high-energy conductors to reduce induced interference.
The module uses a 12 VDC LocalBus supply with a specified current rating of 150 mA. Meanwhile, the bussed field power rating is 24 VDC at 300 mA.
Frequently Asked Questions
Q: What type of transmitter does the KJ3002X1-BA1 interface with?
A: It interfaces with 2-wire transmitters using 4-20 mA analog signaling and HART digital communication.
Q: How many analog input channels does the module provide?
A: The module provides 8 analog input channels.
Q: What environmental temperature range is specified?
A: The supplied specification defines an operating range from 0 deg C to 60 deg C.
Field Installation Guidelines
- Install the module and terminal block according to the DeltaV M-Series hardware arrangement.
- Verify the terminal block key position before inserting or replacing the module.
- Confirm 4-20 mA loop polarity before energizing each field circuit.
- Route analog signal wiring separately from high-voltage and high-current power conductors.
- Use appropriate shield termination practices for the installed transmitter and control-system grounding architecture.
- Verify the available LocalBus power capacity before adding the module to an existing I/O assembly.
- Check field power loading against the specified 24 VDC bussed field power rating.
- Confirm transmitter loop current and HART communication before placing each channel into service.
- Do not apply field wiring configurations that exceed the specified field circuit rating.
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