Overview
The Emerson KL3101X1-BA1, also cataloged as the L3101X1-BA1 I.S. AI 4-20 mA HART CHARM, performs isolated analog signal acquisition for DeltaV CHARMs I/O subsystems. The module converts hazardous-area field current signals into digital process data through the CHARM Bus interface.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KL3101X1-BA1 |
| Brand | Emerson |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | CHARM Bus: +6.3 VDC at 0 A; Field circuit: +24 VDC at 60 mA |
| Product Type | Intrinsically Safe Analog Input HART CHARM |
| Input Signal | 4-20 mA HART analog input |
| Communication Protocol | HART communication through CHARM architecture |
| Hazardous Area Certification | II 3(1) G Ex ec [ia Ga] IIC Gc; IECEx FMG 11.0014U; FM certifications |
| Terminal Block Key Position | A1 |
| Shock Resistance | 10g half sinewave for 11 msec |
| Vibration Resistance | 1 mm peak to peak from 13.2 Hz; 0.7g from 13.2 Hz to 150 Hz |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Relative Humidity | 5 to 95% non-condensing |
4-20 mA HART Loop Processing and Channel Isolation
The Emerson KL3101X1-BA1 uses a 4-20 mA HART loop protocol interface to acquire field transmitter signals within the DeltaV CHARMs subsystem. Therefore, the module maintains analog measurement integrity while transferring process values through the CHARM Bus communication path.
The I.S. design supports hazardous-area installations through intrinsic safety protection. In addition, the module provides electrical separation between field circuits and system-level communication circuits according to the specified Ex certification requirements.
The device supports process instrumentation requiring HART communication functions, including transmitter variable acquisition and digital HART data exchange. Channel-to-channel isolation characteristics depend on the installed CHARM architecture and terminal configuration.
Frequently Asked Questions
Q: Can the KL3101X1-BA1 be removed or inserted while system power is energized?
A: No. The module cannot be removed or inserted with system power energized. Follow the DeltaV CHARMs installation procedures before replacement or maintenance operations.
Q: Does the KL3101X1-BA1 require field calibration?
A: No. The module does not require calibration. It contains no user-serviceable parts and should not be disassembled.
Q: What environmental conditions support module operation?
A: The module operates from -40 deg C to +70 deg C and supports 5 to 95% relative humidity without condensation. It also meets ISA-S71.04-1985 airborne contaminant Class G3 requirements.
Field Installation Guidelines
- Install the KL3101X1-BA1 according to the DeltaV IS-CHARMs subsystem installation instructions.
- Verify hazardous-area certification requirements before connecting field wiring.
- Confirm the terminal block key position matches the required configuration before installation.
- Maintain proper separation between intrinsically safe field wiring and non-I.S. circuits.
- Apply approved grounding and shielding practices for analog signal cables to reduce electrical interference.
- Do not remove, insert, or service the module while system power remains active.
- Use only approved DeltaV CHARMs hardware installation procedures for mounting and wiring operations.
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