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ALSTOM DFI-150-0003
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ALSTOM DEP232
ALSTOM DEP232
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HIMA X-DI3201 985210201
HIMA X-DI3201 985210201

ALSTOM DFI-150-0003

Product Name:​ DFI-150-0003 Digital Frequency Input / Flame Detection Interface Module
Manufacturer:​ ALSTOM (Steam Power / Turbine Control Systems — GE-compatible)
Product Category:​ High-speed pulse / frequency input module for turbine speed monitoring OR flame detector signal conditioner (Limelight series)
Category:
Description
Key Features:
  • Accepts magnetic pickup (MPU), TTL/CMOS pulse, or sine wave inputs
  • Built-in signal conditioning with adaptive gain for weak signals
  • Optional flame sensor interface (UV/IR/ion) in Limelight process-control variant
  • Galvanic isolation between field and logic
Technical Specifications (Turbine Speed Variant):
  • Input Channels:​ 3 independent frequency inputs (typical)
  • Input Signal:​ Sine wave 5–30 Vpp, or TTL/CMOS square wave
  • Frequency Range:​ 0.5 Hz – 5 kHz (corresponds to ~30–300,000 RPM depending gearing)
  • Measurement Accuracy:​ ±0.01 % F.S.
  • Supply Voltage:​ +24 VDC (backplane powered), ~3 W
  • Isolation:​ ≥ 500 VAC channel-to-ground
  • Response Time:​ < 1 ms
  • Operating Temp:​ 0 °C to +60 °C (industrial); some railway variants -40 °C to +70 °C
  • Mounting:​ Plug-in to Alstom TCS / Mark VIe compatible I/O rack
Technical Specifications (Flame Detection Variant — Limelight Series):
  • Input Type:​ UV, IR, visible, ion-current flame sensor signals
  • Supply:​ 24 VDC ±5 %
  • Outputs:​ Digital status + analog trend via backplane / RS-485 (Modbus optional)
  • Self-Diagnostics:​ Flame loss, sensor fault, internal circuit check
  • Protection:​ IP20 (module), IP66 possible in enclosed flame amplifier housing
  • Response Time:​ ≤ 1 ms
Applications:
  • Steam / gas turbine overspeed protection & speed feedback
  • Industrial burner management & flame failure detection
  • Power plant boiler safety systems
Installation Notes:
  • Shielded twisted-pair recommended for MPU cabling; ground at one end
  • Verify correct jumper / DIP settings for signal type (MPU vs TTL)
  • Do not exceed max input voltage on frequency channels
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