Pepperl+Fuchs MB-16U5L-103681 – 16-channel analog input motherboard

Product Description

Pepperl+Fuchs MB-16U5L-103681 is a 16-channel analog input motherboard of Pepperl+Fuchs MB-C3 MIB modular remote I/O system. It serves as the core backplane unit for hazardous area applications. It supports 16-channel 4-20mA analog signal acquisition with integrated HART protocol communication to receive signals from field transmitters. Built-in line fault diagnosis function. This motherboard adopts LB/SC single module design, can be fitted with matching I/O daughter cards for intrinsically safe signal isolation. Certified for explosion hazardous area installation. Widely used for field signal acquisition of DCS systems in chemical, oil & gas industries. It is a common spare part for imported explosion-proof I/O systems.

Specifications

1. Model: MB-16U5L-103681
2. Product Type: 16-Channel Analog Input Motherboard (MB-C3 MIB System)
3. Channel Count: 16 analog input channels
4. Signal Type: 4~20mA, HART 5/6/7 protocol supported
5. Features: Line Fault Detection (LFD), open/short circuit diagnosis, independent channel monitoring
6. Explosion Proof: Intrinsically safe certification for Zone1/Zone2 hazardous areas
7. Architecture: LB/SC single module design, backplane bus communication
8. Power Supply: 24VDC from system backplane
9. ADC Resolution: 16-bit high precision analog-to-digital conversion
10. Mounting: Rack slot installation inside control cabinet
11. Protection Class: IP20 (PCB board, installed inside explosion-proof cabinet)
12. Operating Temperature: 0 ~ +60℃
13. Storage Temperature: -40 ~ +85℃
14. Certifications: ATEX, IECEx, CE
15. Weight: Approx. 0.45 kg

Applications

• Oil & Gas: Signal acquisition for pressure, temperature and flow transmitters in refineries, offshore platforms and pipelines
• Petrochemical: Analog signal collection and HART instrument data reading for DCS systems in ammonia and methanol plants
• Coal Chemical: Explosion-proof remote I/O signal collection for gasification and purification workshops
• Pharmaceutical: Process parameter acquisition for hazardous fine chemical processes
• Maintenance: Replacement of faulty motherboards for Pepperl+Fuchs MIB MB-C3 systems, spare parts for plant overhaul
• Retrofit: Upgrade and expansion projects of legacy explosion-proof remote I/O systems

Family Models

MB-C3-AI16V-KS-131962 (16-channel voltage AI motherboard) MB-C3-AIO16-KS-131958 (8AI+8AO analog I/O motherboard) MB-C3-DI32-AKB-131969 (32-channel digital input motherboard) MB-C3-DO16-KS MB-C3-RTD8-KS MB-C3-TC8-KS