IBA AG IBAFOB-4I-DEXP4X

Technical Specifications

• Analog Input Channel Count: 4 differential input channels (4X fully equipped)
• Input Signal Type: ±10V DC differential voltage industrial measurement signal
• Galvanic Isolation: Complete fiber optic electrical isolation between field side and acquisition controller side
• Fiber Interface: Multimode fiber optic industrial transceiver integrated
• Model Suffix DEXP: Differential input expansion bus protocol compatible
• Sampling Rate per Channel: 10kHz simultaneous multi-channel synchronous sampling
• Resolution: 16-bit analog-to-digital conversion per channel

Functional Features

1. Full electrical isolation via fiber optic media eliminates ground loop interference between field sensor and central DAQ system
2. 4 independent differential analog input channels suppress common-mode industrial noise
3. Synchronous multi-channel sampling ensures time-aligned measurement data for vibration and power analysis
4. Hot-pluggable expansion bus interface for online system capacity expansion without full equipment shutdown
5. Built-in overvoltage transient protection for all analog input terminals

Performance Parameters

• Operating temperature range: -20°C ~ +70°C industrial cabinet installation
• Common-mode noise rejection ratio: 120dB 50Hz industrial power frequency noise suppression
• Fiber transmission distance max: 2,000m multimode fiber cable
• Channel crosstalk interference: <0.001% between adjacent input channels
• Input overvoltage withstand: ±30V continuous transient overvoltage tolerance
• Long-term measurement drift: <0.02% full scale per year

Material Composition

• Module housing: DIN rail mount flame-retardant ABS plastic UL94 V-0
• Internal signal PCB: High-isolation FR4 circuit board with reinforced isolation barrier
• Fiber transceiver assembly: Industrial grade optical transmitting/receiving chipset
• Input terminal block: Copper alloy gold-plated screw terminals anti-oxidation
• Isolation barrier core: Non-conductive high-density plastic isolation separator

Structural Characteristics

• Standard 35mm DIN rail horizontal mounting module form factor
• Left side fiber optic cable port, right side analog input terminal block layout
• Central expansion bus edge connector for stacking to IBA main measurement controller
• Individual channel LED status indicator for signal presence and fault diagnosis

Working Principle

Advantage Highlights

1. Fiber optic full isolation solves high-voltage industrial site ground loop measurement distortion
2. 4 differential channels deliver superior common-mode noise suppression for power plant and heavy machinery vibration testing
3. 4X fully populated unit eliminates spare channel blank slot inventory management
4. Hot-plug expansion bus allows online system channel capacity upgrade without equipment downtime
5. Synchronous 10kHz multi-channel sampling compliant with power quality and vibration analysis high-speed measurement requirements

Applicable Industries

Installation Requirements

1. Mount module on standard 35mm DIN rail inside EMC shielded control cabinet
2. Analog input wiring use shielded twisted pair cable, shield grounded at sensor side only
3. Multimode fiber cable bend radius maintained above 15 times cable outer diameter
4. Expansion bus stacking connector fully locked to avoid intermittent communication loss
5. Maintain minimum 20mm vertical clearance between adjacent DIN rail modules for heat dissipation

Operation & Maintenance Precautions

1. Do not connect single-ended sensor signals to differential input terminals, signal distortion will occur
2. Keep fiber optic port dust cap installed when fiber cable is disconnected to prevent optical chip contamination
3. Annual calibration of analog input channels against precision reference voltage source
4. Avoid mounting module adjacent to high-frequency inverter power modules to reduce radiated EMI
5. Replace fiber transceiver assembly if LED channel fault indicator maintains constant red alarm state