Overview
The Emerson KL3003X1-BA1, also cataloged as the KL3003X1-BA1 Digital Input CHARM, operates as a dedicated hardware component for dry contact signal acquisition within the DeltaV CHARM I/O subsystem.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KL3003X1-BA1 |
| Brand | Emerson |
| Origin | USA |
| Product Type | Digital Input Modules |
| Input Type | 24 VDC Dry Contact Digital Input |
| System Platform | Emerson DeltaV Electronic Marshalling CHARM I/O System |
| Channel Configuration | Dry Contact Digital Input CHARM |
| Terminal Block Key Position | 2C |
| CHARM Bus Power Consumption | +6.3 VDC at 32 mA |
| Field Circuit Power | +24 VDC at 10 mA |
| Operating Temp | -40 deg C to +70 deg C |
| Shock Resistance | 10g half sinewave for 11 msec |
| Vibration Resistance | 1 mm peak to peak from 2 to 13.2 Hz; 0.7g from 13.2 to 150 Hz |
| Relative Humidity | 5 to 95% non-condensing |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
DeltaV CHARM Digital Signal Acquisition Characteristics
The KL3003X1-BA1 receives 24 VDC dry contact field signals and converts contact status changes into DeltaV CHARM I/O process data. The module connects directly to a CHARM terminal block and uses keyed mechanical alignment to prevent incompatible CHARM installation.
Additionally, the module supports hazardous area installation with certified protection methods including Ex nA, Ex ec, and intrinsic safety interface combinations. The device carries ATEX, IECEx, UKEX, FM US, and FM Canada certifications for specified Zone 2 and Class I Division 2 applications.
The module uses isolated field interface circuitry to manage digital contact inputs while maintaining CHARM Bus communication. Therefore, field wiring remains separated from the system communication layer during normal operation.
Frequently Asked Questions
Q: Can the KL3003X1-BA1 be removed or inserted while system power remains energized?
A: No. The unit cannot be removed or inserted with system power energized unless the installation area is confirmed as non-hazardous.
Q: Does the KL3003X1-BA1 require user calibration?
A: No. The module does not require calibration because it performs fixed digital contact signal processing.
Q: Can another CHARM type be installed on the same terminal block?
A: Yes, but the terminal block key settings must be reset after removing the terminal block and releasing the locked keys.
Field Installation Guidelines
Install the KL3003X1-BA1 only according to the DeltaV CHARM I/O hazardous area installation instructions. Verify the terminal block key position before mounting the CHARM module.
Connect field dry contact wiring according to the approved terminal block diagram. Keep digital input wiring separated from high-voltage power conductors to reduce electrical interference.
Complete the required I/O loop assessment for all energy-limited nodes before operation in hazardous locations. Confirm enclosure grounding, cable shielding practices, and hazardous area classification before system startup.
The module contains no user-serviceable parts. Do not disassemble the unit during maintenance activities.
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