Emerson KL3003X1-BA1 DI 24VDC Dry Contact CHARM

Emerson KL3003X1-BA1 DI 24VDC Dry Contact CHARM - Reliable Digital Input for DeltaV Control Systems

The Emerson KL3003X1-BA1 DI 24VDC Dry Contact CHARM provides robust discrete signal monitoring for DeltaV distributed control systems, enabling reliable detection of switch positions, relay contacts, and binary sensor states across industrial process applications. Engineered for harsh industrial environments, this digital input module delivers dependable performance from -40°C to +70°C, making it ideal for oil & gas, chemical, pharmaceutical, and power generation facilities requiring fail-safe discrete signal acquisition.

Core Technical Specifications

• Input Type: 24VDC dry contact (voltage-free contact monitoring)
• Signal Detection: Binary state monitoring (open/closed, on/off)
• CHARM Bus Power: +6.3VDC at 32mA maximum
• Field Circuit Power: +24VDC at 10mA for sensor excitation
• Operating Temperature: -40°C to +70°C (-40°F to 158°F)
• Terminal Block Key: 2C for proper CHARM type identification
• System Compatibility: DeltaV v11.3.1+ with SD Plus, SX, SQ, MQ, MX, PK controllers
• Environmental Protection: ISA-S71.04-1985 Class G3 conformal coating

Global Hazardous Area Certifications

Certified for deployment in classified industrial environments worldwide:

• FM/CSA North America: Class I, Division 2, Groups A-D, T4; Class I, Zone 2 applications
• ATEX Europe: Zone 2 certified for explosive atmosphere installations
• IECEx International: Compliant with global hazardous area standards
• Marine Certification: DNV and ABS approved for offshore platforms and maritime installations

Industrial Process Applications

Safety Interlock Systems: Monitor emergency shutdown (ESD) valve positions, pressure relief valve status, and flame detector contacts in refinery and petrochemical facilities. The dry contact input ensures galvanic isolation between field devices and the control system, preventing ground loops and electrical interference in safety-critical applications.

Equipment Status Monitoring: Track motor starter auxiliary contacts, circuit breaker positions, and thermal overload relay states for pumps, compressors, and fans. Real-time discrete input monitoring enables predictive maintenance strategies by detecting abnormal equipment cycling or unexpected trips before catastrophic failures occur.

Level Switch Detection: Interface with float switches, capacitance probes, and vibrating fork level sensors in tanks, vessels, and separators. The module's wide operating temperature range (-40°C to +70°C) accommodates outdoor installations and non-climate-controlled equipment rooms without performance degradation.

Valve Position Confirmation: Verify open/closed positions of motor-operated valves (MOVs), pneumatic actuators, and manual isolation valves through limit switch contacts. Positive position feedback ensures process safety by confirming valve movement completion before proceeding with batch sequences or startup procedures.

Alarm Panel Integration: Connect fire alarm systems, gas detection panels, and process alarm annunciators to DeltaV for centralized monitoring and historian logging. Dry contact inputs eliminate the need for voltage-matching circuits when interfacing third-party safety systems with different signal levels.

Dry Contact Input Advantages

Voltage-free contact monitoring provides superior flexibility and reliability:

• Universal Compatibility: Accepts signals from any switch, relay, or contact closure regardless of voltage level or polarity
• Electrical Isolation: Galvanic separation between field devices and DCS prevents ground loops and common mode noise
• Simplified Wiring: No external power supply required for basic switch monitoring applications
• Enhanced Safety: Eliminates voltage mismatch risks when interfacing equipment from different manufacturers
• Reduced Troubleshooting: Simple two-wire connections minimize installation errors and commissioning time

Rugged Environmental Performance

Engineered for reliable operation in demanding industrial conditions:

• Extended Temperature Range: -40°C to +70°C operation accommodates outdoor installations, arctic climates, and desert environments
• Shock Resistance: 10g ½-sine wave for 11ms withstands mechanical impacts from nearby equipment or seismic events
• Vibration Tolerance: 1mm peak-to-peak (2-13.2 Hz), 0.7g (13.2-150 Hz) for installations near rotating machinery
• Humidity Resistance: 5% to 95% non-condensing operation in coastal, tropical, and high-humidity environments
• Conformal Coating: ISA-S71.04-1985 Class G3 protection against airborne contaminants, corrosive gases, and industrial pollutants

Installation & System Integration

Designed for efficient deployment in DeltaV I/O architectures:

• Mounts on standard CHARM Baseplate with DIN rail installation for flexible cabinet layouts
• Terminal Block Key 2C ensures correct CHARM type placement and prevents module mismatches
• Automatic keying system sets terminal block configuration on first insertion
• No user-serviceable parts - factory calibrated for life with no field calibration required
• IP20 protection rating suitable for control room and marshalling cabinet environments

Hazardous Area Installation Requirements

Critical safety guidelines for classified locations:

• Installation Documentation: Refer to Document 12P5403 "DeltaV Electronic Marshalling Digital Automation System (CHARM I/O Subsystem) Zone 2 Installation Instructions"
• Removal/Insertion Restrictions: CHARM modules can only be removed or inserted when system is de-energized OR area is certified non-hazardous
• Energy-Limited Nodes: I/O loop assessment required before hot-swapping in energy-limited installations
• Terminal Block Keying: Keys set automatically on first install; to change CHARM type, remove terminal block and unlock/reset key mechanism

Typical Field Device Connections

Why Choose Industrial Control Hub?

Your specialized source for genuine Emerson DeltaV automation components:

• ✓ 100% authentic OEM products with full manufacturer traceability and warranty
• ✓ Expert DCS technical support from certified automation engineers
• ✓ Extensive inventory of current production and legacy DeltaV spare parts
• ✓ Expedited global shipping to US, UK, EU, and Asia-Pacific markets
• ✓ Competitive pricing with volume discounts for project quantities
• ✓ Complete documentation, wiring diagrams, and installation assistance

Complementary DeltaV CHARM Modules

Ordering Information & Accessories

• KL3003X1-BA1: DI 24VDC Dry Contact CHARM (this product)
• Terminal Block Key 2C: Pre-configured for dry contact digital input applications
• SE4608T01: CHARM Baseplate Assembly for DIN rail mounting
• Replacement Terminal Blocks: Available separately for field maintenance

Technical Documentation & Support

Complete installation manuals including Document 12P5403 (Zone 2 Installation Instructions) and DeltaV S-series Hardware Installation Manual available upon request. Our application engineering team provides system design consultation, wiring diagram review, and troubleshooting assistance for complex DeltaV discrete I/O implementations.

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