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Description
Product Overview
The ABB CMA120 3DDE300400 is a mission-critical 16-channel analog input module within ABB’s S800 I/O family, engineered for precision process monitoring in demanding industrial environments. Designed for seamless integration with 800xA and Symphony Plus DCS platforms, this module delivers exceptional signal integrity for temperature, pressure, and flow measurements with 16-bit resolution and ±0.05% accuracy. The ABB CMA120 features patented channel-to-channel isolation technology, eliminating ground loops while supporting simultaneous input types (TC/RTD/mV/0-20mA) across its 16 configurable channels. With SIL 2 certification and hot-swap capability, the 3DDE300400 variant ensures continuous operation in critical applications like refinery safety systems and power plant turbine control, where measurement reliability directly impacts operational safety and efficiency.
## Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | CMA120 3DDE300400 |
| Manufacturer | ABB |
| Product Type | Analog Input Module |
| Channels | 16 (individually configurable) |
| Input Types | TC (J/K/T/E/R/S), RTD (Pt100/Ni120), mV (±50mV), mA (0-20mA) |
| Resolution | 16-bit |
| Accuracy | ±0.05% FS @ 25°C |
| Conversion Rate | 50 ms/channel (all channels scanned in 800 ms) |
| Isolation | 1500V AC channel-to-channel, 2500V AC channel-to-backplane |
| Common Mode Rejection | >120 dB @ 50/60 Hz |
| Power Consumption | 1.1A @ 5VDC (backplane) |
| Operating Temperature | -25°C to +70°C |
| Hazardous Certification | ATEX/IECEx Zone 2 |
| Connection Interface | Removable screw terminals (0.2–2.5 mm²) |
| Diagnostics | Open wire detection, over-range alert |
## Key Features and Advantages
Intelligent Signal Conditioning
Automatic sensor type recognition eliminates manual configuration errors, while continuous lead resistance compensation ensures Pt100 measurements remain accurate even with 50Ω cable resistance drift. The CMA120 3DDE300400’s dual-slope integrating ADC achieves 80dB noise rejection – critical for EMI-heavy environments like steel mills.
CMA130 3DDE300410
Uncompromising Safety
SIL 2-certified architecture incorporates hardware fault injection detection, triggering <100ms channel isolation during failures. Conformal-coated PCBs withstand 95% humidity and corrosive atmospheres, while redundant power inputs (via 3BSE013240R1 baseplate) prevent single-point failures.
Operational Efficiency
Hot-swappable design enables replacement in <90 seconds without process interruption. Integrated HART multiplexer allows simultaneous calibration of all 16 field devices via Control Builder M software, reducing maintenance downtime by 70%.
Future-Proof Connectivity
Module-specific electronic keying prevents incorrect module installation, while firmware updates preserve calibration certificates – essential for pharmaceutical batch records complying with 21 CFR Part 11.
## Application Areas
Gas Turbine Protection: Monitors 32 bearing temperature points (via dual CMA120 modules) with 0.1°C resolution, triggering load shedding within 500ms during overheating events.
Chemical Reactor Control: Simultaneously tracks 16 pressure/temperature points in ATEX Zone 1 areas, with intrinsic safety barriers integrated via CMA130 companion modules.
Hydroelectric Governor Systems: Provides ±0.01% accuracy for wicket gate position feedback, synchronizing grid frequency within 0.05Hz tolerance.
Pharmaceutical CIP Systems: Validates steam sterilization temperatures with NIST-traceable calibration, storing certificates directly in the 3DDE300400’s non-volatile memory.
## Related Products
- 3BSE013240R1 – S800 Baseplate (required for mounting)
- CMA130 – Analog Output Module (complementary output solution)
- SD822 – Digital Input Module (safety system integration)
- 3BSE008105R1 – Redundant Power Kit
- CMA121 – 8-Channel Version (space-constrained applications)
- 3BSE050091R60 – CI854A Communication Interface
- PCD235A101 – PROFIBUS-DP Master Module
- DSAI130 – High-Speed Analog Input (1ms sampling)
- 3BHE039203R0004-TEI73 – Temperature Input Expansion
- GDB0001 – Diagnostic Baseplate Tester
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