ALSTOM MAE99-04 DCS Unit MODULE

ALSTOM MAE99-04 Product Introduction & Technical Specifications
Brand  ALSTOM
Model MAE99-04
Order Number  MAE99-04
Product Name  8-Channel Serial Interface Isolation Unit / RTD Termination Panel / I/O Gateway Module
Place of Origin  France (European Union)
Customs Code  HS Code 85371090 (Industrial Automation Control Module & Interface Board)
Dimensions  Approx. 270 mm × 90 mm × 80 mm (Length × Width × Height)
Weight  Net Weight: 0.57 kg

Temperature Specifications
– Operating Temperature: -40°C to +60°C
– Storage Temperature: -55°C to +85°C
– Humidity: 5%–95% non-condensing
– Protection Class: IP20
Electrical Specifications
– Supply Voltage: 18–36 VDC (nominal 24 VDC)
– Input Voltage Range: 0–55 VDC
– Output Voltage: ±5 VDC
– Output Current: ±500 mA
– Isolation Voltage: 2.5 kV AC (channel-to-channel, channel-to-system)
– Frequency Range: 14–60 kHz
– Response Time: <1 ms
– Certifications: CE, UL, ATEX (optional)
Key Features
– 8-channel high-speed serial interface with galvanic isolation
– Designed for RTD (Resistance Temperature Detector) signal conditioning and termination
– Rugged construction for high-vibration, high-electromagnetic-interference industrial environments
– Advanced fault detection and diagnostic functions
– DIN-rail mounting for easy installation in control cabinets
– Compatible with ALSTOM GEM80, ALSPA, and other DCS systems
– Long-term drift <0.3% for stable signal transmission
Practical Application Cases
1. Power Plant Turbine Control: Integrated into ALSTOM gas turbine and steam turbine control systems. It provides isolated signal conditioning for RTD temperature sensors monitoring bearing temperature, coil temperature, and lubricant oil temperature, ensuring accurate and reliable data for turbine protection and performance optimization.
2. Oil & Gas Refinery Process Monitoring: Deployed in refinery DCS networks to interface with temperature transmitters and field sensors in distillation, cracking, and reforming units. Offers signal isolation to prevent ground loops and interference, maintaining stable data acquisition in corrosive and high-temperature refinery environments.
3. Marine Vessel Automation: Used in commercial ships and offshore FPSOs for engine room monitoring systems. Connects to marine-grade RTD sensors measuring engine exhaust, coolant, and hydraulic oil temperatures, complying with DNV and GL marine standards for continuous operation at sea.
4. Industrial Boiler & Steam Systems: Applied in utility and industrial boilers to monitor wall, steam, and feedwater temperatures. Delivers precise, isolated analog signals to boiler control systems, supporting safe and efficient steam generation and preventing over-temperature failures.